Zero21 Solitaire Game Reviews

We transfer money over €4 billion every month. We enable individual and business accounts to save 4 million Euros on bank transfer fees. Want to send free money abroad or transfer money abroad for free? Free international money transfer!

Way too many ads!!. I thought this game could be fun and a great way to keep my brain active. I had to stop playing after 5 minutes because there was an ad after each level. You want 5 extra diamonds? Watch an ad. You need to use this button that you’re being told to use? Watch an ad. I couldn’t take it. Oh, putting it on airplane mode as another review suggests doesn’t work. You still get all the ads!

Mismatch between developers. I downloaded this game thinking it would be okay because it was by Zynga games, but this doesn’t feel like a Zynga game. It feels like a Playrix game instead. The amount of ads doesn’t match the number of ads in the Harry Potter match-3 game by this developer, which has ads but not very many. It matches the amount of ads in the Playrix game Pull the Pin which has ads after every round and in order to claim anything gained through progress. Please reduce the amount of ads in this game to a level similar to the level of ads in your other games.

Great game! 10/10 Would recommend.. This is an absolutely amazing and fun game, I just got it and i love it. I don’t know why people say it has too many ads, just turn on airplane mode. I like the fact that it has some math because Coronavirus has made it so people can’t do as much math so it can help people with math instead of just sitting in front of an xbox playing Minecraft all day, they can do some math instead. This is a great game with some school-ish aspects to it so it is especially good during quarantine. I would recommend it to anyone and i will be sure to tell my friends to get it so it can help the creators

Ads. This game’s so fun and addicting but there’s an ad after literally every level or if you don’t beat the level. There’s a continue by watching an ad button, but even if you don’t click it there is one. Either way I’m not going to stop playing it 🤣

Could be more fun, but ad city. Ads are an understandable method of getting free games on the App Store. But an ad after EVERY ROUND is irritating. Including when I choose to not receive a bonus or restart a level from where I lost. Would love to give this game a 4 or 5, but the advertisements are way to outrageous. Look somewhere else if your looking to kill time and have fun, excuse all you will get here is an app that is 25% content and 75% advertisements.

Fun game, but too many ADS!. I’m really enjoying this strategy game, but I can see where most people would feel forced into paying the $2.99 to get rid of ads, because there is an ad after finishing EVERY SINGLE LEVEL. And, they aren’t just 30-second ads, they are the kind that run down the 30-second timer and just when you think the ad is finished, up pops ANOTHER timer for 12 seconds! 42-second ads are ridiculous. I’ve never played a game where the ads are this intrusive. Most other games allow to complete 2-3 levels before having to watch an ad.

Meh- Not Impressed. This is a mindless game and works well enough for killing time if that’s the goal. Chief complaints: - Frequently freezes and crashes my phone- the app appears to be very poorly written. - Level generation isn’t stable, meaning that each time you try a level the cards change. This makes the game more about luck than skill. There are frequently generations that are unsolvable. Then you try again and the puzzle is easy with the new card arrangements. - Way too many ads. I know I could turn on airplay mode but that’s not really the point. This game clearly exists to force users to watch as many ads as possible (such as when you end up with an impossible card generation and don’t want to start over) Overall not impressed, there are better games to spend time on.

Ads ads ads....and more ads. This is one of those apps that was made for the sole purpose of receiving income from ads. Fail at a level, want to continue? Watch an ad. Don’t want to continue? Watch an ad before retrying. Want this new item? Watch an ad. Don’t want it? Watch an ad before going to the next level. Hey, you’re in the middle of a level? Here’s a 30 second unskippable ad. Followed by another unskippable ad, but this one’s only 11 seconds. Good job beating that level! Here’s an ad before you can continue on. Makes the game unplayable. And none of the above is an exaggeration in the slightest. I understand some ads in an app, it’s the way of business. But this? They decided to put a few seconds of a simple game in between their ads app so people would actually stay and watch their ads.....and more ads

Ads after every round. I’ll complete a level in less than a minute then An ad, I’ll patiently wait and then go through the process of clicking through all the phases of the ad till next round, then I’ll play my second round complete that in no time, then another very tedious and long ad. Not a fan, However, the game is good idea and I like the style of the game. It’s just you can’t even play the game cause of ever add lurking behind every corner.

Perfect Idea but too many ads. This game has such an amazing concept but there are ads👏after👏every👏single👏level👏. Normally that wouldn’t be a problem but the levels don’t last long at all. If you can think on any way to do no ads without paying(ie: turn off data/wifi) you need to do it!

Worst Game Ever!. It seemed like a fun spin on solitaire. I was excited to try it. I couldn’t handle the ads and paid to get rid of them. What a total waste of money!! You HAVE to watch ads if you want to pass certain levels. And the levels are RIGGED to make you lose or watch the ads. They won’t even let you earn maxs or mins so you can pass the game. I’m so mad I spent money on this game. And unfortunately, like most developers, no one who made this game is looking at the comments or even cares about how unfair the game is.

Great game, but …. This is a fun and addicting game. The only problem I have is with all of the ads. I paid to remove the ads, but I still have to deal with ads if I want any power ups. Some of the games are impossible to win without them. I honestly thought it was going to be like other games and once I paid for ad free it was going to be as free. I was so wrong. I can’t listen to music/podcast/audiobook while playing because the ads of course have sound and interrupt whatever I’m listening to. The game would be five stars if my purchase of ad free made it truly ad free.

Amazing ❤️❤️. This game is so cool I wouldn’t get mad at it but then I come back and play so I die and then I lose the round and I play another game and then I come back to it and I’m like oh come on I’m just gonna play it’s so addicting I just can’t get enough of it it’s so fun step 1:play step 2:loose level step 3:leave and go play another game step step4:see AWESOME game on home screen step 5:then press it and it brings me to this amazing game I love this game and it’s really awesome and cool creators of the game thanks for reading and hope you have a blast playing this game like me

Fun game but crazy amount of ads. Sometimes the cards have a bomb connected to it and you have a certain amount of time to click it to use it. Every time I watch an ad for a min or max card, I’d continuously press it to use it after the ad but it somehow “freezes” and won’t let me use it. The bomb card ends up blowing up and I have to start over or watch an ad to resume playing.

Ruined by ads and the gem system. It seems like every single game these days is ruined by ads and the dumb “gem” collecting system. This system isn’t even relevant to this game, but they lazily added it anyway to get you to watch more ads. The game itself is fun but it’s unplayable with all the ads. You can remove the ads for $3, but this isn’t a $3 game. There are plenty of $3 games out there that actually have depth and content. Maybe if it was $1 I’d buy it instead of deleting it.

Okay. It’s a pretty good game, probably something anyone of any age could play and enjoy, but there is one huge problem that gets really annoying. Every few minutes the app will immediately direct me to the App Store? No ad or anything? And it won’t let me close it out without directing me back another 10 or so times. And then I get directed to an app about having an AFFAIR? This definitely needs to be fixed...

To many ads. The general gameplay is pretty fun- if you don’t mind 1000 ads coming at you. Every time you need a certain card, finish a level, fail a level, or hit any loading screen, guess what? They’re going to give you another freaking advertisement. I would keep the game if I could actually play it rather than just watch the same 3 ads over and over again. Not worth it.

Not really that great after a while. I enjoyed it at first but then I started to notice that the “random” levels sometimes generate cards that make it impossible to beat unless you use the discard or the min-max features which makes you watch and ad for it. Those features make it too easy. The ad isn't problem, it’s the way its made. If the game generates an “impossible” level, wheres the fun in beating it by just using the ad features? There’s no challenge and no thinking required to it and after 20 levels it just got boring. It feels like they didnt give much thought to the game since the levels can be either two extremes, either super easy or just plain impossible unless you restart or use the features. If the trash and min-max features weren’t there it'd be better.

a great game!. I usually don’t write reviews but this game is to good to not. This game does not have that many ads, you don’t need in-app purchases to do better, you can watch ads to get second chances if you fail but overall this is a great game and a boredom killer if you have time to kill or just need more variety in your games this is a great game I love it so much and I suggest you get it

More information please. I like the brain teaser ideals of the game but would suggest the following. First, clarify in instructions easily viewed through settings just what constitutes a perfect game. Second update what the points can be used for once everything is purchased by points. Thanks

Love it!! But I payed for no ads for a reason... I love this game but can you do something about the ads for power ups? I bought the game but I still have to watch ads to get min/max/delete power ups instead of just earning them through the game. It also offers an ad to continue games after losing and get more diamonds and keys after winning. If I pay for no ads I don’t want any ads, especially not in every game and before/after. There’s even rounds that aren’t winnable the first few times you play them to try to force you into giving in and just watching ads. Almost every review is complaining about the ads yet you have the one saying “idk why people are complaining about ads” pinned. Obvious manipulation. Even your most positive review is acknowledging that people think there’s too many ads. Multiple people feel cheated out of their money after buying what would be an amazing game without all these ads and ad offers. Just make diamonds and keys harder to get through the gameplay and offer in game purchases if you’re so greedy. You would make more money than you do through the pennies you get from ad revenue because more people would download and purchase this super addicting game and make the in game purchases. Right now you’re making it feel like a scam. Take out the ads or give us our money back. Btw I could write a way better description and I’d do it for free if you took out all the ads.

It’s good but could be better.. The game is fun and is a nice calm game to play while your waiting for someone/thing or trying to relax. That being said it’s ok to have adds but there to many. It takes away from the actual game play. The game is good but u have to watch 1to2 adds everytime you mess up or pass a level. You spend more time watching adds than actually playing the game.

Heavily Ad Driven. Too many ads!!! If you keep track of the cards, you will quickly realize that in the end it rarely makes a difference which card you played … you are often forced to watch an ad to receive a “bail me out” card so you can complete the level OR don’t finish the level AND STILL watch another ad. I played maybe 10 rounds and got quickly annoyed and bored.

Progress?. Unlike most people on here, I don’t mind ads. I know that’s how the game makes money with nickel and dime-ing you constantly and that’s ok with me. Yeah, there’s a lot but so what? My issue is that the unlockables are not tied to gameplay whatsoever. There’s no incentive to win or complete levels other than just for the gameplay itself. That leaves the game feeling empty and lackluster. I’d suggest some sort of coin collection system that can be used to purchase the card sets, rather than just unlocking them via ads. This also goes for the daily challenges; these really aren’t special because there’s no building incentive to play them. Institute a reward system and the game will improve so much!

Good but no real progress. When you think of solitaire it’s simply round after round of solo play, which I get. This game however takes you through “levels” which to me connoted that there would be some sort of progress or change it difficulty. It’s the same game over and over like a traditional solitaire which wasn’t actually what I was looking for. It gets kind of boring after awhile.

Calming 👍. I’ve had this game for about a week and a half and it really helps with my anxiety. It helps me think about something else. But, I’ve unlocked all of the card packs and now I’m just getting diamonds on top of diamonds on top of diamonds with no way to filter it. Nothing more to buy with them. This is a really good game, and I would recommend it.

Information For The Devs!!. This game is really good. i found a glitch where if you double tap a little lower from the main number it pops up a box saying to choose a number and you can literally change it to anything. say i was about to lose by going over budget, i can just change the number back to one and add my card. i’ve made it go to 10,000 lol. thought i’d let y’all know

Help. I paid for the ads to be removed. Well they weren’t. Can’t find how to get to customer service. Please refund my money since the ads won’t stop!

Don’t Waste Your Money on “Ad Free”. I’m really enjoying this game. I think it’s pretty fun. I decided to go ahead and purchase the $2.99 “ad free” option so I could just play and not deal with ads. However, as far as I can tell that didn’t do anything. Still ads to be able to do things in the game and ads in between. Don’t was your money just watch the ads, you’ll have to anyway.

Good Game But Too Many Ads. It’s a great game, but why have it show an ad every time you complete a level? It just to repetitive and it takes the fun out of the game. Showing an ad once in a while is fine, but after every level?

Very fun and easy but.... I really do enjoy this game. It takes a little strategy but not much thought which is pretty nice. The part that I have an issue with is if I need a max or min card and watch an ad, it should automatically apply the card. It’s not like the cards can be saved and used on a different level so just use the card automatically after watching the ad. The way my mind sees it, I click on a card to use it. When I click on the min or max card to watch an ad, that’s me selecting the card. So I’ve had multiple times where I lose the level because of that and I select another card without selecting the min or max card again. Give a setting for an option to have it automatically added or manually add it. I have no problem with the ad situation like many others have. Their frustration comes with they don’t understand the difference from a 30 second ad and a 5 second ad that you have to hit the fast forward button (only on some).

Offer chance to buy the min/max cards. I paid for no ads, but hate having to watch them to get the cards I need. Please offer a way for people to buy packs of them. Also, add more combinations you can get by ending in 10. Having fun, but would pay to avoid all ads.

Awesome game. This game is awesome I love that it challenges your brain and it does not take that much time per game like regular solitaire and it is perfect for a short game on a car ride or if you are sitting at home and need a little bit of a challenge it is great thanks so much for the producers who made this game!

Worst game ever. developers for this game are scammers. I usually don’t even write a review or rate but this game. How can you go to the other lvl without watching an ad? Simple answer is: NO YOU CANT. It’s like impossible to go to the next lvl without watching 2,3 ads(willingly). I get that you guys need to make money by ads so I don’t care about seeing ads after you complete a level. BUT you need to watch some ads just to complete a level, which is BS BS BS BS. why don’t you guys just go make a game that can complete the lvl by watching x amount of ads? Worst game ever. And it’s not a number game, it’s an ads game.

Frequent impossible levels. Every other level I end up getting one that’s impossible so I have to purposely fail the level to get working cards. What I mean by that is that I’ll get chain cards which means that they automatically use the next card behind it. I don’t mind that but wayyy too often will I get a chain that goes like max then +6 forcing me to fail the level. It also goes like min then -2 again forcing me to lose the level. You really have to fix that or get rid of the feature as a whole. It makes it impossible to play those levels first try and I’m tired of it. I like the game but that bug is what brings the rating to 2 stars.

Good game🙂😊. I think this game is very good. The only thing I think is bad or should be changed is that it makes a noise or vibrates when you hit a card. I personally don’t like that. I hope the game sees this and changes it, but other then that this game is awesome and I am kinda addicted. Some people might complain about the ad’s and stuff, but the ad’s are very reasonable in this. Thank y’all for reading this and I hope you have fun playing this game.😁❤️

Ads. Ever since this new update there’s an ad after every level. It used to be after every three levels there was an ad which was acceptable, but after every level I finish there is an ad and it is a bit excessive. The fact that I can finish one level in about 10-15 seconds, but am forced to watch a 30 second ad just to move onto the next level, only to repeat the process, is a bit aggravating. Fun game, but the ads ruin it.

Non stop ads. It’s all ads and very little game. You have to watch sometimes two ads between each level and a level last less than a minute and the ads are30 seconds each. Plus it’s constantly freezing up if I do decide to watch an ad if I’m failing a level that was never winnable.

$2.99 ad removal purchase does nothing. Still ads. I can’t find another way to ask for my money back. Hopefully whoever can return the “ad free” money when it still makes me watch ads every game or to do anything will respond to this and tell me how to get a refund. I thought I finally found a game that still did purchase options so I could actually play a game without constant 30 sec ad interruptions that I’ve seen a million times on almost every game out there. Either really make it ad FREE (which means no ads at all) when the $2.99 purchase is made or tell me how to get my money back for the misleading charge.

I love this game!!!. I ❤️ this game, but there is an ad after ever play. I saw where one person suggested to other players to turn their phones on airplane mode while playing, BUT I really feel like I shouldn’t have to do that to avoid all of the ads. It works, but you cannot use your WiFi, while on airplane mode, because they will show pop up! Overall, 5 stars minus the unnecessary ads!

Too many Ads. Honestly I believe that this is a five star game, but the amount of ads are insane. You can’t even skip them. When you provide an option for ad-for-bonus, that’s great, but when you just want to keep playing the game, you can’t cause you are thrown into an ad after EVERY level. That in my opinion is a three star game.

I hate the adds. The adds are so annoying it glitches to you should take off the adds like seriously. They are so annoying I have no clue why there is so many adds it is so stupid.

Not very amusing. I downloaded this after seeing an ad about it, and it look like something up my alley. While it was downloading, I looked at the ratings (4ish) and was expecting it to be an awesome app that I was going to be addicting to. Within thirty seconds of download, I was on level 2. I figured out how to turn the vibration off which I disliked, so then I was thinking that I was going to start enjoying it then. Now, I was onto the next level (3), and I was sitting there staring at the app, contemplating what I was going to do, but I was starting to fade off in liking at the end of the first round. I ended up deleting the app after 45 seconds of downloading. I would recommend not to download this app. I can’t say that it gets worse later or better in the future of playing, but at this time, I wouldn’t downland this app since it is very very very boring. Don’t download!

I like it a lot but. Listen, I love that the game is fun and challenges my brain with math questions however the fact that it automatically redirects me to the App Store with some kind of ad that I have no choice in accepting or not. Also when I go back to the game after closing the App Store it keeps automatically redirecting me. It’s quite frustrating

Ad suggestions even after purchase.... The game is enjoyable. I paid to have zero ads. If i want to continue without watching an ad after passing a level, I have to wait a few seconds more to select "continue" without an ad attached. It's fine, but annoying. When I "win" something (new cards, background, etc), if I don't watch an ad, I don't get it. If I pay for an app I expect there not to be ads lurking at every turn. It was hard to tell if I even liked the game at first due to frequency of ads without purchasing.

Deleted after 10 minutes. This game is just okay. There is way too many adds in this game. Even if you don’t want to watch an ad to get bonuses at the end of each level, you still have to watch an ad to get to the next level ...might as well watch the ad. 🤷‍♀️Plus you have to watch an ad if you want to go back to the homepage. I get they make money off the ads, but there are too many. You spend more time watching video ads than you do playing on each level. Not worth it.

Too many ads.. Loved the game, fantastic. That said, every level forced me out of the game and onto a safari tab that it opened with the same ad every 30 seconds. I didn’t even have to touch the screen for this to happen several times. It made playing very difficult and after being unable to play a level due to the impossible amount of app-closing ads, I gave up and uninstalled. Maybe if the developer was interested in something other than squeezing out every possible penny from you, this game could be more enjoyable.

Updated Game, Updated Review. Found a settings option and quickly turned off the vibration. That makes for a much better experience. Some levels are frustrating because they seem impossible, but I’ve also completed 70+ levels without watching bonus ads. It’s a nice balance.

Fun game but…. I play this game to pass time, but it’s missing something. It needs a restart button within the game incase you get stuck and want to start the level over. I shouldn’t have to lose and watch an ad in the process to start the level over. They have a setting button in the top left corner that just sit there and look pretty. There’s no option in there aside from language, restore purchases and vibration. I don’t care for those. I need a restart option. 3 stars because of lag and ads but it’s expected.

Good game but to many ads. I like the over all game but there are just way to many adds. Every time you mess up you have to watch an add or when you pass a level it makes you watch an add. I’m watching more ads then actually playing the game. With all the ads the game gets boring really quick because you spend more time watching ads then playing the game.

Did you know that you can earn 25 USD from our site just by registering? Get $25 for free by joining Payoneer!

Too many ads.... To many ads... one after every game..

Way too many ads and what are the crystals for??. Constant ads after every game. Ads go for at least 30secs. You spend more time watching ads then playing the game. Also what are the crystals that you collect throughout for? You can’t use them for anything!!! I have 700 crystals but what is the point?? I never review apps but this was so frustrating. Would be a good game if it wasn’t just an ad rather than a game. Will be deleting.

Fun game.. but. I really enjoy this game but there are some major faults. There are WAY to many ads; after every single game, if you need a “power up”, and when you fail a level and retry. The diamonds/gems are useless. Ever since downloading this game my phone has been overheating severely and battery is drained so quickly (assuming from the ads). Sadly, will delete. Great concept and game but has too many faults.

Sooooooooooooo fun. Up the top is what the bottom bit is

Reading bad reviews is more fun. This game is utter trash. There’s some levels where you can’t win without watching an ad to get a power up. It’s ads every single time you do anything. The app is designed from top to bottom just for ads. If you want to get angry download :) GOD KNOWS how they have average 4 stars

Good mindless game. This is a good game for passing time, but not challenging, it doesn’t progressively get any harder

Stoppages.. Way too many ads. After every game.

review. the ads are very annoying the need to stop popping up after EVERY GAME

Addictive. So good

Great game but too many long adds. Love playing but only got a few levels and stopped. Damn ads 10-15 seconds long for a 2 second play. Come on!

Too many ads. Not worth it - make sure you turn data off for this game. Ads after every level and sometimes during. It’s unbearable

Game too simple, too many ads. Even when you don’t want to watch an ad for reward, one pops up after anyway. Killed my patience real quick. Delete...

Way too many ads that you can’t skip. Deleted after second round because this was so annoying

Too many ads, bad game. In simple terms, the ads aren’t worthwhile for the entertainment, the game is silly and utilises little skill and more time.

Inspirationfollowers. It’s a great and addictive game

So many adds. Really need to work on add placement

Too many ads. Simple but good. Deleted coz too many ads! So annoying!! Ad every 30 seconds!

Rigged to make you watch ads. There’s nothing skilful about this game. The “random” cards are far from random and laid out in such a way that it forces you to watch ads to continue the game. It’s impossible otherwise. The whole thing is concocted to suck people in to progressing only if they watch ads for “boosts”. Absolute suckers. That doesn’t even count the ads at the end of each game. Just avoid.

Ads. To many ads

Too Many Ads. Would happily purchase this game - but there doesn’t seem to be an option. Every game is followed by an ad - generally the same one that goes for 30 seconds.

Too easy. Too easy

Best H. Good game but it needs

poor effort. once all the decks are all collected the diamond rewards are useless. the game is made purely for the purpose of advertising. don’t waste your money on purchasing the no adds option..

Nope. Well if it’s advertising you seek then look no further. This just another ad generator disguised as a game. There are even ads that run for 60 seconds - yes, 1 minute ads. Rude and greedy, don’t bother. Deleted...!!!

Good and bad. Nice game, nice thinking tool... ads are painfully

Too many ads spammed. Too many ads

WAY TOO MANY ADS. There are WAYY too many ads in this game. I would love to play it but you need to get rid of the ads when you lose or win. I should haven’t to wait for ads just to play the next round. I understand the ads for the extra cards but not just to continue playing the game!!!

Info. Too many ads

Too many ads easy game boring. There’s too much ads it’s not only because of that it’s pretty boring but really easy

Just to show ads. It’s could be a fun game but they show ads every 10 to 15 secs.

Ads make an otherwise fun game completely unplayable. Way too many ads that get in the way of trying to actually play the game.

Why have a pay to remove ads option if it doesn’t remove ads?!?!. Way too many ads, even paying to remove them did nothing to remedy this which seems criminal. I definitely regret the purchase and would like a refund

Ads. Alright, too many ads, not worth downloading

Way too many ads. Nice game but after any button you press you have to watch a 30 second add... EVERYTIME. Even when you try and skip a power up you still have to watch an add, very disappointed and will be deleting the game.

Okay. Good fun but waaaaay too many adds - getting bored quickly

Imagine you at your best. All the time. Picture yourself at your sharpest and most productive. Your most alert and focused. Your most lucid, creative and confident. At work. At play. In every area of your life. Add Mind Lab Pro® v4.0 to your daily routine and uncap your true potential. Buy Now!

Great game too many ads. Great game too many ads

Card game whatever it us called. Too many stupid intrusions trying to get me to play other games, taking the natural flow and enjoyment away from just playing! Having to wait, watch other gametypes, and not being able to x out quickly really detracts from the flow! I will play a couple more times, but will probable delete this as it will be too frustrating!!

Not challenging enough. Game is too easy. Repetitive after a while. At least it was a bit interesting when I could earn rewards for ending on “perfect 10.” Now that’s gone, so it’s just the same hum drum. Make it get progressively harder. Or add a timer. Something. Add in multiplication or division. Anything.

Great fun. I would love a timer option. Either a) score based on time completed or b) game timer counts down and you fail if it runs out. Easy medium and difficult times. Or timer starts easy on low levels and gets harder as you play. I’m at level 120 and it’s not that much harder than lower levels.

Ads. Too many ads but good

Too manys adds.. Every time u finish a round, bam 30 second add your stuck watching before u can continue.

This is boring. I gave this 5 stars so you the game compony puts my review first.On level 4 you just tap right side card and then the left repeatedly until you win. This game is too easy and lame. Also there is a crazy amount of ads. I hate this 0.1 stars if i could.

ADS literally after every level played. Ridiculously annoying.

Too many ads. Not a bad game, But too many dang ads. Had the game for less than an hour and am already fed up with them. I will be deleting it shortly

Fun. Keeps your mind busy, simple but fun!

Bad game. It’s a good game for playing it2 times but 3 play during the 3 game it takes you to the App Store and a app will pop up and it’s asking you to donate blood every time you go back to the game it takes you back to the App Store don’t download this game it a waste of your time

Good but the ad lied. I saw an ad for this game and it said “staying in between 0 - 21 is so hard” when In reality it’s not. It’s just basic math with a few sprinkles in it. This game is not hard at all

Max/low cards shouldn’t be chained. They should change what can be able to be chained together. For example when it chained too cards together and one is say a Max card and behind it is another plus card you lose instantly every time

Ads Way too Long. Played two rounds took 15 seconds. Had to watch two 30s ads. Deleted.

Don’t recommend. Too many ads. Pointless game.

Excessive ads. Close one, same one appears before needing to close again. Sound button disappears seconds, giving no chance to silence ads. Daily challenge guesses buttons on cards do not respond.

Capitalism. There’s an ad after every single level (each level takes about a minute to complete). don’t bother 💀

Fun game but way too many ads. As a game developer myself I can understand why ads are necessary to support the developer, but when you have them so constantly it deters players from using the app. Have them every once in a while so the user stays interested and you can still get some revenue.

Ad. So many ads

All video adds. This game annoyed me so much that I had to write this review. It’s nothing but video adds every two seconds. Ex. For the level that made me post this I watched 2 mins of adds for 20 seconds of actual time playing. Deleting right after this is posted and I’ve only had it for two days.

Way to many adds. Way to many adds

Terrible. Million Ads.. So bad. 15-30 second ad every 30 second level.

Ad free isn’t ad free. I paid for ad free, but it doesn’t remove the ads. You still have to watch ads to unlock features. Very misleading

Too many adds and in game purchase. I enjoy the game but every two seconds there’s something to try and up sale and/or advertisement between each round.

Takes you hostage by ad. It’s a fun game for sure, but it’s one of those with like a zillion ads to try to force you into buying the “no ads” pass. Pretty annoying.

Just ads. Every time you do something else its just ads. Ads to unlock things... don’t want it... have an ad anyway...

Kept opening the AppStore during the game. Probably a bug but it started happening in the middle of a game and kept opening the AppStore every time I switched back to it.

Too many ads. Get rid of constant ads... I get that’s how you make money but enough is enough

I thought it was good. I liked this game and it was so much fun but now I hate it only because it automatically puts cards and that causes you to lose. I was on 18 and the game automatically put a 7 just to screw me up!

Too much publicity. Bored with the pub!!!

Too many ads... annoying. Really.... why every game???

Decent game…excessive ads. Game is pretty good. Ads show up after every single level. Usually longer than it took to play the level, makes it annoying enough to delete

Keeps sending me to App Store. I really liked this game but then when I was in the middle of playing a level I would tap a card and it would take me out of the game and open the App Store. I would close the App Store and return to the app where I would see “open failed”. I would continue my level and tap a couple more cards when it would send me back to App Store. Does this at least three times per level.

Too many ads. Too may adds ... Game is slow pacing 🙁

Sets you up for failure.. I keep getting a minimum card attached to a negative card. Or a maximum card with a positive card! No fun to get so far in a game just to be sabotaged by the bots

Ads. Way, way way too many I deleted this app

Can’t close ads. Game is fun but the ads are forced on us and terrible.

good game but ads ruin it. too many ads

Fun Game But Too Many Ads. I’m enjoying playing but there are far too many ads to deal with. I’ll be removing this app shortly.

Opens App Store on its own. This app on more than one occasion has opened the App Store while I’m playing. I don’t know what’s going on with that but now I’m removing the app because of it.

Even Paid Option has Ads. Paid for “no ads” and games are set up to require you to watch ads to complete. Example, all accessible cards right from the start are negatives so you must watch a 30 second video mid-game to play. When you pay for no Ads you expect to no longer have to watch Ads as part of gameplay.

Too many adds. Way too many adds!

Great game if you don’t mind spending all your time in the App Store. Loved this game for like 2 min... then the app just keeps kicking me into the App Store. Can’t even play a single game without this constantly happening. Don’t even wast your time downloading this app!

So many ads!. Absolutely excessive amount of ads. After every level you have to watch one and some levels are dependent on you watching ads to get bonus cards.

Too much ads. Too much ads

Zero21 solitaire. Adds omg there are too many adds after each level there’s an add it gets annoying

Forced ad after every Level. I get you want to be profitable in this app. But forced ads are annoying enough. After every level? Why bother playing.

Coucou. Je vais au toilette

TOO MANY ADS. I quit after 7 levels because there is an add after EVERY SINGLE ONE😡😤😡😤😡🤯😤😡🤬🤯😡😤😡🤯

Ads kill this game. Ads after every level and very long ads. This is unacceptable. Deleted app.

Adsterra is the most preferred ad network for those looking for an alternative to AdSense. Adsterra is the ideal choice for new sites with low daily traffic. In order to advertise on the site in Adsterra, like other ad networks, a certain traffic limit, domain age, etc. is required. There are no strict rules. Sign up!

Pop ups. I keep having annoying pop ups that bring me to the App Store in the middle of the game. It’s not just one time either, it’s several times back to back! Fix this a I’ll give 5 stars. The game itself is great and an awesome concept to pass some time while giving mental stimulus.

So. Many. Ads. I understand businesses want to make money and the way apps and games like this is to sell ad time. But this is excessive. In frustration, I paid the $2.99 to remove ads but guess what? There are still ads! And I can’t get Apple to refund my money. Don’t do the ad removal, it’s a scam. In fact this entire game is nothing but ads with a little bit of game content.

Needs more variety. Fun to play. Only problem is that there is little variety in the levels and the difficulty just doesn’t improve. The levels go on forever but the same puzzles repeat.... for example, level 50 may be the exact same puzzle as level 65.

Too many ads. Please give an option to support you instead of ads every time win lose or continue.

Fun game. This game makes me happy when I’m high it’s very flamboyant I love the vibration how the card flips there’s a lot of ads but they go by quick it’s easy but not too easy you really nailed this one guys

Excessive ads. I understand you feel like you want to make some money on this game you’ve created but the excessive ads are ridiculous. IN THE MIDDLE of a game. Ads to unlock different styles cards and if you chose not to unlock those cards you still get an ad. Ads after every match win or lose. Can we tone down the ads a bit? PLEASE

This game was fun. I only played this game for a total of an hour and started out mildly enjoying it. However I was on a round that had two stacks of cards. There were two -9 for the first cards. So I just clicked one and there was a -7 under it causing me to lose. I thought the game just messed up but it kept happening with different numbers. Kinda just a waste of time.

Rigged for ads. Seems like every round there’s constant ads. I feel that the game purposely makes your last card impossible to play. Seems like it’s just so you can click on the ads to get the option of playing a safety card. It’s literally every round. The game is fun up to that part

Cool game but too many ads. Simple fun game, love it! Although, 2 ads after each level is too much. I often buy games if they are made nicely and with care for customers, but I definitely won’t buy this one as the creators cared about money more than about making the game process pleasant.

Time burner. I work in customer service. When I should be in someone house doing my job, I’m playing this game. It’s simple but extremely entertaining to me.

The game is...but... Is game is one of the best games buts there is lot i mean many many ADS when go to another level there will be an ads if you lose their will be an ad even when ur play the game and I am only in the 3 round so please fix this I understand about the ads but why there is many ads after, before and while you are playing so I really think that you should slow the ads.

Addictive but annoying. At the end of a game, if you lose, it says continue but you have to watch an ad. If you say no it will go to an ad anyways and not give you anything which I think is frustrating. Anyways, it’s fun and really addictive but frustrating

Not sure. The game is self is fun and a little addicting. But it’s super annoying having ads after every single level if you beat it. Or lose. The whole game is basically supported by ads. And you can’t get rid of them. So to make this game better I would minimize the amount of ads. It’s just not fun when you play one level and half to wait 30seconds- to a minute to play again.

Who f* made this game?!??. Lemme just started off with this. If I could have given it no stars...I would have. Now explanation...I know this title is a bit much but for real, I really wanna know their name,anyways, it told me too keep it between 0 and 21, which I did, I teach 21 and it tells me that I got it wrong. So I try to use all the cards and I still got it wrong and had to start over. I was mad!!! Even on the daily challenges it does it. Please fricking fix the game. I’m really upset. Regards-Olivia

No Ads is a SCAM!!!. Do NOT pay for no ads in this game!!! It is a total SCAM! You will still have to watch ads to get any power ups in the game! Most of the levels are rigged so that you have to use a power up. Aside from this, the game is fun and addicting. I can’t seem to put it down, just wish I didn’t waste $2.99 on a SCAM!

I meant to give one Star. It started out to be a fun strategic game. After a certain level you can’t play without having to watch an ad because of the cards dealt to you. It becomes impossible with strategy ;to discard certain cards to stay in play you have to watch an ad. I deleted the App.

AWESOME GAME. This is the best game EVR I LOVE IT. It is such a challenge it does not have many ads. I highly recommend this game for all people it is a good way to stretch ur mind and think about addition and subtraction I would LOVE more games like this🤩🤩🤩

Game is ok. There is no help or instructions for this game. During the game you earn gems, but there is no way to use them for anything or no explanation of how to use them. It’s a relatively easy game.

Looking for something more. I’m a math teacher and would really love to use this with students but would love an extra challenge. Could you make this or another game so it’s -21 to 21? That way people have to add negative numbers and positive numbers on the other side of the number line??

I love it. I have no complaints about this app. I love how the ad wasn’t clickbait. And I don’t mind the ads because I can mute them. Other apps don’t mute the ads and that makes me mad because I wanna listen to my music not an ad. But this app is great:)

Would you like a game with those ads?. The concept is neat. But having to skip through 20 seconds of ads for a 15 second round is just plain stupid. If the developers were smart they would hold off all of the ads until the later levels to rope people in, but they even failed at that.

In what world is this fun?. This game is just boring, it’s literally elementary school math. Plus, what’s the point of having the choice of an ad that gives you a reward and a choice of skipping the ad and the reward if either choice makes you watch an ad anyway!? This is literally the least interesting game I’ve ever played

About the game. Hello I love playing this game I just feel since it’s called zero to 21 you should be able to go as low as 0 and as high as 21 without losing you can only go 1 to 20 right now

Fun but.... Super fun but the constant barrage of 30 second commercials is sooo annoying that I am probably deleting this. Every time you have to use a max or min you have to watch a commercial, if you do anything you have to watch a commercial. In between each round you have to watch 2-3 commercials. Oy vey!

Great game. Great game not loaded with ads fun suitable for all ages addicting not too easy but not too hard it’s perfect difficulty also has to do with luck but anyway I recommend this game a lot try it and it’s also FREE!!!😃

Extremely fun, but too many ads. Every time you complete something, or even try to start over, every second of the way....THERES ADS!!! Wayyyy too many of them. And it gets annoying because you’re trying to play the game and by then, you’re already addicted. And then every 2 seconds there’s an ad. Very disappointing.

Potential but bait. I was enjoying the game but I really don’t like that for certain levels no matter how many times you retry the level you MUST watch an ad for a min or max card. You’re already playing enough ads. I should be able to win a level without having to cheat and watch an ad with how many ads are already being played.

Waaaayyy too many ads. It’s a fun thought provoking game however, there are too many ads. Ads to get diamonds, ads to get bonus cards, ads to play the next level, ads to simply play the game. There are too many ads. It makes me want to delete it and I’ve only had it for about 2 hrs.

Excessive ads. I wanted to like this game. I’ve seen the ads for it. But I started playing … played one game 15 seconds had a long ad. Came back played another game had a long ad. I don’t think this would be fun in the long-term to watch all these ads more than playing the game.

Too many ads. Only played a few levels. At the end of every level there is an option to boost your earning by watching an ad. If you opt out of that, you still have to watch an ad. Some levels will always be impossible without boosters as well. So if you’re reading this and can’t decide, move onto a different game

Blackjack is less random. Another game that is not really a game. Want the win a board? Just keep voluntarily watching ads until you clear the board. But want to play it straight? Good luck, because all that you can count on is luck. There is no "game" here unless you're looking for a "game of chance". I have paid for other games that don't insult my intelligence. This will not be one of those games.

Good game - paid but not ad free.. I paid the the $2.99 to make the game ad free. But it isn’t ad free. You still have to watch ads if you want something. Not happy with that. There is no way to contact the developer and let then know how disappointed I am.

Great game, but.... The game is great; pretty easy, as advertised, and is a fun way to waste some time. BUT, there are so. many. ads. If you download this app, play a game, and fail a level, just hit “continue” because chances are you’ll just get an ad either way. Airplane mode works, too.

Another game ruined by ads. I get it. Everyone Has to make a living but, if you trying to do it while cheating people out of a good time then there’s no reason for them to even pursue your product. Literally there’s an ad practically after every level passed lvl3. It’s only irritating because it’s such a great game but, hard to play when every five seconds they’re trying to trap you into playing another one

Ehhh. I like the game itself but unless you pay to remove ads you sometimes get blown up with 30 things sending u to the App Store to download another app back to back to the point the game freezes.i had to delete the game just for that.

Barely entertaining. Too easy, until it’s too hard to beat first try and they force you to watch ads to keep going. Even if you pay for ad free or try to skip the ads for power ups, they make you watch ads at the end of levels. I get it’s a free game but for being barely any fun, it just is not even close to worth it.

You get an add whether you say yes or no. At the end of each level it asks if you want bonus points for watching an app. Even if you say no it plays an add. So you get an add either way, but if you hit no you just get no bonus points after the add. Any app that does this gets an automatic 1 star from me. The game itself is fine but not enjoyable because of the mechanic I described above.

Ads and Freezing up. I love the game but having ads every level that one can not get out of and the ad causing the game to freeze up(banner ads) just does not interest me into purchasing an ad free game because I would be afraid it would still have ads and freezing up. Another game that will be deleted, it is a shame.

Pretty Sure I’m Just Playing Ads Not a Game. I’ve never give a review on the App Store but this app was SOOOOO terrible I had to. All you see are endless ads. If you complete the level ad, if you lose ad, if you need a card ad, if you do anything in this game there’s an ad. The game is 0% enjoyment when I spend over half my time watching ads.

Ad Game. You spend more time watching ads than you do the game. I like card games and all but the ads make it not worth it. You are given an option to watch an ad for a new deck or not. Click no, you’re still gonna watch an ad. If you don’t mind the ads the game is fun. But to many ads for my taste.

Ads Simulator. Anytime I get an ad offer for anything (+3 keys, second chance, or x3 rewards), I press no because I don’t want to watch an ad right now. But! Nine times out of ten I am still met up with an ad even after pressing no. I am going to get a big fat delete on this game, it would’ve been better if you didn’t shove ads down our throats even when the user presses no.

Zero21 Solitaire. I like the game which is why I gave it a three star rating, but the ads after each time u beat a level is kind of annoying and makes you stop wanting to play. I haven’t touch the game in a month and when I went back to it I remember why I stopped playing it in the first place.

FYI. It’s a fun game just make sure you know when it says 0-21 it doesn’t mean you can get 21 or 0. If you land on those two numbers you lose. Which was weird to me but is still an awesome game. It also has these sections to hold a card if if will make your card go too low or high

Fun game- Too many ads. This would be a five star app if it wasn’t for the fact that you get an ad after EVERY single level. Irritating to deal with those, plus they drain your battery. I know they have to make their money, but there has to be a better way to incorporate ads.

Sick of the ads. Happens way too often that I’m forced to go down to 1, and then my only available cards are -8, -9. Seems like it forces you to watch the ads to get the “Maximum” card (or vice versa) to continue playing. Wouldn’t mind at all if it only happens once in a while but it’s almost every single round. Deleted the app.

I love the game but…. My older brother is so triggered by it and he’s so mad when there’s something like “17” and the last card is “6” he’s like “😡😭🤦🏻‍♂️”

Major problems. The main problem with this game is the fact the game is engineered to give random cards for each level. I was stuck on a level because it was impossible to keep the number within the given range. Example: ten being the starting point. I would have a -8 and a -6 to choose from. I use the -6 and get a -8.

The game is fine but is sometimes impossible to complete without using a powerful. For example one level I played had a starting minimum card and the next two were both minus cards....... like cmon game you shouldn’t have to use power ups to complete a level

Fun game but gets ruined by ads. Anyone that’s looking for a game that doesn’t have an ad popping up every time you beat a level (which should take about 30 seconds to complete), then this isn’t for you. Another game sadly ruined by the adpocalypse.

To many ads. I understand you make majority of your money from ads but this causes platers to lose interest rather quickly. I played 3 rounds and had to go through 9p seconds of ads for 1 minute of game time. I loss interest and deleted app.