Threema. The Secure Messenger App Reviews

Threema. The Secure Messenger [Social Networking] App Description & Overview

What is threema. the secure messenger app? Threema is the world’s best-selling secure messenger and keeps your data out of the hands of hackers, corporations, and governments. The service can be used completely anonymously. Threema is open source, allows to make end-to-end encrypted voice and video calls, and offers every feature one would expect from a state-of-the-art instant messenger. With Threema Web, you can also use Threema from your Desktop.

Threema is designed from the ground up to generate as little data on servers as possible. Group memberships and contact lists are managed on your device only, and never stored on our servers. Messages are immediately deleted after they have been delivered. Local files are stored encrypted on your mobile phone or tablet. All this effectively prevents the collection and misuse of your personal information, including metadata. Threema is fully compliant with the European privacy legislation (GDPR).

Threema encrypts ALL your communications END-TO-END including messages, voice and video calls, group chats, media files and even status messages. You can rest assured that only the intended recipient can read your chats, and nobody else – not even us. Threema uses the trusted open source NaCl cryptography library for encryption. The encryption keys are generated and safely stored on users’ devices to prevent backdoor access or copies.

Threema is not only an encrypted and private messenger but also versatile and feature-rich.

• Write text and send voice messages
• Make voice and video calls (requires iPhone 5s / iOS 10 or above)
• Share videos, pictures and locations
• Send any type of file (pdf, animated gif, mp3, doc, zip, etc.)
• Use Threema Web to chat from your Desktop
• Create groups
• Conduct polls with the poll feature
• Choose between a dark and a light theme
• Quickly and silently reply with the unique agree/disagree feature
• Verify the identity of a contact by scanning their personal QR code
• Use Threema as anonymous instant messaging tool
• Synchronize your contacts (optional)

All our servers are located in Switzerland, and we develop our software in-house.

Each Threema user receives a random Threema ID for identification. A phone number or email address is not required to use Threema. This unique feature allows you to use Threema completely anonymously – no need to give up private information or to open an account.

The source code of the Threema app is open for everyone to review. On top of that, renowned experts are regularly commissioned to conduct systematic security audits of Threema’s code.

Threema is not financed by advertising and does not collect user data.

For questions or problems please consult our FAQs:

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How to contact Threema. The Secure Messenger (Threema GmbH)?
Find this site the customer service details of Threema. The Secure Messenger. Besides contact details, the page also offers a brief overview of the digital toy company.

Threema. The Secure Messenger Customer Service, Editor Notes:

Threema. The Secure Messenger Version 4.6.1811 April 2022

• Don’t show notifications for messages in group chats you have left • Audio player is now always dismissed when switching chats • Other improvements and miscellaneous minor bug fixes.

Threema. The Secure Messenger Version 4.6.1518 January 2022

• Fixed a bug concerning Asian language keyboards • Extended log to include files if requested by user • Other improvements and miscellaneous minor bug fixes.

Threema. The Secure Messenger Version 4.6.1420 December 2021

• Improved performance when loading chat overview • Improved performance when sending media files • Key fingerprint replaced with public key in UI • Fixed a possible bug in relation to external keyboards • Other improvements and miscellaneous minor bug fixes.

Threema. The Secure Messenger Comments & Reviews 2022

- Needs delete for everyone option & viewed option for received messages

I like Threema but was horrified to discover that one cannot delete messages for everyone. I did not realize that all messages would remain on the receiver’s phone. I get confused on Threema when I have listened to an audio message because there is no indication that I have already listened to it. A check or something would be nice. If there are many audio messages and one gets interrupted, then it is unclear where to start relistening again. I do not like the red while recording messages, it is very distracting to the eye. I would prefer a milder color. I also like that in WhatsApp I can type a reply in the reply box while listening to a message but that does not work in Threema. Otherwise, I like the clean design of Threema and the privacy.

- Best messaging app for security

If you want a pretty messenger, stick with the Messages app, Facebook, or maybe Signal - they’re all “secure”. If you want a secure messenger, get Threema. It sends messages securely from device to device, not user to user, so you need to think a bit differently about using it, but that difference in thinking is “this message is encrypted on my device and sent to that other device, which I’ve confirmed is the correct device by scanning its barcode”. This is handy (and one of my main uses) because you know that your snarky comment isn’t going to show up on your wife’s computer as she’s projecting her screen in the conference room at work. True device to device encryption, plus the company’s location in Switzerland with physical control over its servers, combines to make this a very secure messaging app. Even if you’re just using it to send snarky notes about employers, it’s worth the price.

- Great...needs a few changes

I love Threema and the spirit of the developers' vision. I really trust this company. They just need a few additions. Needs a delete for everyone feature. This is very necessary for a number of reasons: error in typing, privacy, etc. Needs to make indicating bubbles of phone calls less intrusive, as they take up the same or more space as actual messages. Need conference calling. Near perfect app. Thank you. The ability to quote a picture...any message to or from. Also read receipts in group chats. Actually, this might catch on in the USA. I've got people looking at it. But still need to differentiate calls from actual messages in appearance.

- An inconvenient communication app

Such an inconvenient communication app for voice-messages. It doesn’t support running in iOS-background, which means it can’t automatically download voice-messages or images you received. Every time you get a incoming-voice notification, you have to open this app and tap the voice-message you received and wait for a long while to download it. If you don’t live in Europe, I strongly suggest you not to using it, because downloading voices-messages from Threema’s sever takes really long time. Not even to mention that if you receive more than one voice-messages, you have to tap them each one by one to download, waiting and waiting for these downloading processes. Too annoying!! What an era do we live in? Almost every communication app is now having this feature downloading media automatically.

- Great at security, mostly great at the rest

This looks like a messaging app written by people who take security seriously. Well done. I’m only taking off one star because the onboarding process was a mess. At one point, you’re asked to enter a password, and again to verify it. That’s all fine, but the password fields are so far down the page that the on-screen keyboard completely covers the second one — and the page doesn’t allow scrolling vertically! Eventually I discovered a workaround (tap Passwords, then Cancel, then tap the second password field, then blindly type your password on the keyboard that appears). But this is really something that should have been caught in testing. This makes it impossible (AFAICT) to paste a password from the clipboard, which discourages the use of strong passwords from a password manager. And that’s not good for security. Aside from that one major inconvenience, though, this looks like a great app.

- Get this app now

I’ve been using Threema for years It is by far the most safe and secure messaging app out there Once you pay for the original app, there are never any additional charges for any messages, pictures, videos, or texts sent... ever!! I used to pay a lot of money to send even just one text message to family members in Europe. Not anymore.. I hear this app is very popular in Europe, but somehow I don’t think it will ever catch on in the United States. But if you do purchase it, it is definitely worth it. You will need to tell your friends and your family members about the app because they need to have the app as well in order to communicate with you. Once anyone else has this app it’s the only way I communicate with them. They begin to use it too and it becomes your normal way of sending messages back and forth. Almost all of my text messages to people I know, go through Threema. Get this app and spread the word. Remember freedom means “No Big Brother!”

- Good but no “edit message” function

This could be the perfect secure messaging app if it were “fat-fingered perfectionist”-proof :D, as having to copy, delete, paste, edit, then resend just to “edit” a single sent message is so much hassle compared to just hitting an edit-button. For now I and my similarly fat-fingered perfectionist friends will be begrudgingly sticking with the less secure alternatives for now. If this is ever implemented, I will start recommending Threema, as otherwise the UX feels solid, better than Wire’s and even Signal’s. By the way, if the concern is with potentially allowing people to edit maliciously, maybe a mutual-consent-based “Allow editing of sent messages in chats” switch is an appropriate solution. Or perhaps just an “Edit history” list.

- Not impressed

While threema works overall, I’m less than impressed with the audio overrides and the disconnects. If I’m on a call and play a video, the call will completely disconnect. If I’m playing music and merely open the app, it will kill my audio for about 5 seconds, and then artificially lower the volume. Drives me bonkers. I’m constantly having to go into my settings and revoke (or grant) permission to the microphone depending on what-else I’m doing. Very annoying and detracts from the usefulness of the app itself. I’ve contacted support and the only thing they could tell me was to upgrade to the newest version of it. I’m already running the newest version. It’s the only message app that has been incapable of handling audio in a competent way. Very disappointing to say the least.

- Best app in the entire App Store

No need to give your phone number out to anyone. THREEMA gives you an ID which you use instead of your phone number. No other secure messaging application allows you to protect your phone number in this way. Also, because you pay for THREEMA you know exactly why they’re doing what they’re doing. For money from you. You’re paying and this your data isn’t the price. I’ve been with THREEMA since the start and their developers come with constant improvements and updates. I love this app because it means freedom.

- Great but behind on features

This app is great for secure messaging and anonymity. I wish this app used a in-app purchase model so it could be downloaded for free to increase the user base. They could then charge an in-app purchase for features like voice calling, group chat, or other features that could be limited but allow for basic secure messaging for new users. However, for being a paid app, it seems to lag in features compared to competing products. I hope they add or fix some of these items: - Perfect Forward Secrecy on the end to end layer - self destructing and deleting messages - video calling - allow the user to do other messaging while a call is in progress.

- Love Threema but,

I’m giving Threema 5 STARS after it becomes open source but, what’s the point of all these features that added recently and Threema still blocked in many countries, what’s the point if I can’t call, text or send photos to anyone in my list. they can’t use Threema without a VPN 90% of my friends switched to another IM app because it’s available in their country’s that’s why Threema is not popular so until you find a way to use it without a VPN then we can enjoy all features otherwise it’s useless.

- Thank you Threema - you saved Slovakia

Your app revelaed the biggest political scandal in the Slovak Republic history. All you need is to break inside (it took police some months to do it - you might work on more secure standards) of one of the biggest influential oligarchs who used it for long time. Now all Slovakia could read the messages and reveal the biggest political and economical thefts made by politicians, oligarchs, mobs. So big thank you for liberating our country. (all in the news last two weeks)

- Best app there is

Don’t have to use a phone number to setup an account. That’s so massively important. They actually charge for the app which is a major positive if you care about what their motivations should be. Privacy first and then they basically try to copy WhatsApp on features. Always a little behind on the feature list but you’re choosing privacy over minor functionality bonuses. My favorite app and I couldn’t support this company or their vision more.

- The Best Secure Messenger!

Threema offers the best security of any encrypted messaging app available! Not only is it based in the pro-privacy country of Switzerland, but it has also been comprehensively audited by a reputable Swiss security firm and found to have no vulnerabilities. The other great thing that makes it unique is that only you have access to your private key and you can exchange public keys directly with friends and family, which proves the identity of your contacts. This robust authentication protects your communications to a greater degree than similar apps. For more confirmation, check out past Security Now podcasts for why Threema is the best and most secure messenger you can use. If you are looking for a messaging app that gets security right, look no further than Threema.

- Excellent call quality and stability. Highly recommended!!!

We are calling half away around the world with very limited internet connection speeds, I mean very limited. We are amazed each time how clear and immediate the conversation can be. The stability is outstanding as well, calls are only dropped if I accidentally touch the wrong button!

- Awesome messenger

Couple of touches are missing, such as video call support and if developer can enable sent message edit function for short period of time i.e you can edit your sent message within first 20 seconds, then would be awesome. Another thing, instead of tap and select, slide right/left would be much easier.

- Great, but needs a disappearing msg feature

Signal and others allow one to have messages over a user-definable age automatically erase from the device. Please consider this feature request. It also allows for shrinking the amount of data backed up and helps keep conversations ephemeral.

- You really need to add sync between devices

This is almost a deal breaker, and certainly keeps from being able to use it for anything but messages that need to be secure. It’s one thing to deal with it for just your account, but when you tell that to other contacts and family it becomes impossible as most people just expect sync no a day's on iOS.

- Well executed but missing some features

On the security side the application is very well executed. On the messaging side there are a few features that would be desirable to have; The ability to quote a picture. Read receipts on messages in group chats (who in the group has seen your message).

- New logo

Only thing I’d change is the icon. If your using this app and don’t want people to realize it’s a messaging app it’s kind of hard. The picture logo is literally a message bubble with a lock in it, which is pretty suspicious. Other than that I think it’s great.

- the best no question about that.

first rule: you get what you if its free its crap or screwed you by the T&C. i like to see more support for the apple watch so that u can actually write a new message without the use of an notification of an unreaded message by the phone from the watch.

- This App is Great but...

I am experiencing a bad experience when trying to send some pictures in this app. It get to long to sending, and mostly it failed, because i can not wait the pictures loading before close this app and move to another things i need to do on my phone. Please do something. I never tried video, but if pictures get that long, wondering how long the video will take

- Needs option for disappearing messages

Nearly perfect, but I hope they can include an option for disappearing messages in the near future, like signal does.

- Great App. Needs an update.

Great app for secured and private messaging. Only problem is you can’t delete your messages off of the receivers phone. Please add this feature, Telegram has this feature and love it for that reason. Add this feature in to your app and your app will be the best secured and private messaging app out there.

- Great app. Fundamentally secure.

I like threema because it is fundamentally secure and the model makes sense to me. I'm hoping for more features like being able to react with emojis instead of "agree/disagree". But other than that it's great

- Great app with room for improvement

Please add stickers to Threema. It’s the only feature I miss when compared to other less secure and private apps! Thank you for your commitment to privacy and security.

- Calling works off and on

Having some issues with calling to another threema user it will ring sit on connecting and then disconnect. Work fine a couple times and had just stopped.

- Alright app

Cool interface, and solid security protection from remote devices accessing information. I would recommend that they create a burn on read feature similar to wickr that deletes messages as they are read. Good protection unless someone has access to your physical device.

- 🤯No disappearing messages?!?🤯

I love this app and all the privacy features it has to offer but I am blown away that it doesn’t have the option to users to choose or burn their messages (or conversations?!?) I’ll definitely give this app ⭐️⭐️⭐️⭐️⭐️ if (once) it’s added! 😇

- Missing messages with this version

missing messages, the other person receive the notification but not the messages. happened couple times already. if is fixed l'll give 5 ⭐️

- Needs to be fixed since last update

Ever since the last update the voice message recording has a bug. It records super silently and you have to pretty much hold the speaker right to your ear to be able to understand. Even if the volume is all the way up. Please fix that issue! It's very annoying!

- Reset

I like this app but I just reset my phone and lost the app now I’m trying to open it again I’m not able please someone help me thanks. If I forgot my password any option to change it?

- way bettet then zoom 😆🇺🇸🇺🇸🇺🇸

you should incorporate AI generated qr codes to every call and message for full anonimity👌✌️ i would pay 5 to 10 dollars if that was incorporated you could dominate britan,germany and china. maybe AI random generated IP address as well?

- Message Retract

You should be able to retract your messages and it doesn’t have this feature. Or Message expiration where messages get completely dusted after certain amount of time

- Password

I don’t understand why in an upgrade some time ago they took away the letters under the numbers (as on a telephone) and never put them back. For me this makes it harder to use because I remember letters more easily than numbers, hence I have to look up my password, hence I use less.

- Awesome (!) App, just the last update...

Love the app, but ever since the last update to iOS13 it’s not possible anymore to see the text you add to a picture before sending it to THREEMA.

- Good, but needs work.

This is a solid, secure messaging app and I enjoy using it. Though, there are a few features I feel need to be seriously reconsidered, or perhaps even removed. 1. The ability to export an entire conversation Into a zip file without the secondary users consent 2. The inability to block users Other than that, this is a pretty solid app. In the future however, I would also recommend adding group administration options.

- I love it but there is no Mac version

It’s a great secure messaging app with huge potential but still needs some improvement. Hope it can support Mac OS soon!

- Threema can’t find my backup

I upgraded my phone and was unable to restore my credentials, even though I had them backed up to the Threema Server some time ago. I even carefully had store my backup password. I lost all the documents that my family had sent me and all their communications - very upset and deleted the app forever.

- Cant type IDs that arent exactly 8 chars

I dont know when this happened but My friend cannot send to my ID Because my ID is not exactly 8 Chars. It seems it cannot be more or less than 8 chars which were valid at some point earlier in the software history. EDIT This works correctly after investigating it further they were using the nickname and not the threema id under my profile

- Last update

This update made the app not opening unless disabled face detection

- The best private messaging app

None of the others can compare with Threema’s design and security.

- Useful app! Keeps getting new features

This is a very helpful app and I'm very glad it exists.

- Original sound

I love Threema. High security messanger app. And Threema sound is very original!

- Excellent

We hope the support of arabic

- Since the last update it hangs up often

App is also freezing since last update. Why do y’all keep screwing with it. Please add full Apple Watch support. This freezing is really messing with my system btw

- Great product with German data protection

Love this app and its technical implementation!

- Fix the App!

I love threema. Five stars. After the most recent update, I can barely type. It locks up half of the time. This is utter nonsense! (iPhone 7 Plus 256GB) -- devs, please address! (Then I will happily rate this back to 5 stars)

- Bad update

For me this app has been 5 stars but the latest app has unresponsive UI. The app crashes and hangs which it never did before.

- Password

Can’t get past password stage. Won’t accept any combinations. Please help.

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- Good app, but hide stale contacts is the dumbest feature I have seen in a while

This is a very nice messaging app with excellent privacy features, but the feature to „inactivate“ and hide contacts that have not been on there is really the dumbest thing I’ve seen in a while, and I doubt it’s tested with users. From my perspective: 1) It will certainly hurt uptake of the app: Most people who decide on whether or not to use the app will check how many people are on there. Seeing only a few contacts will discourage them. See network effect. 2) Having „(inactive)“ display next to your name for 24 hours after you started using the app again just feels plain weird in an app that is boasting it’s privacy features. Who says I‘m inactive? And why doesn’t the very action of sending a message determine activity? Also, having to chat with „inactive“ contacts with the constant reminder that they are deemed inactive (it shows in the chat and in notifications) is an unpleasant experience.

- Anonymous

Now if only there’s disappearing messages and Threema would be perfect

- Well maintained and secure

I’ve been using Threema for over five years. It’s constantly improved, secure and has a great feature set. I’ve never had it crash. Paying for it is a great, sustainable idea. I recommend anyone serious about privacy consider using Threema.

- Not bad but no Burn on Read timer!

It’s not a bad app but in the scheme of things is really no better than any other encryption messaging app. The biggest downfall of Threema is the lack of ability to have messages deleted on both ends either upon reading or after a set time eg; 5mins, 30mins etc. it lacks the privacy users are wanting in an encryption messaging app.

- Can’t edit or delete for all

Great principles this app but very inflexible - can’t edit messages or delete for all. Also no Mac desktop version. Will keep using unencrypted alternative for now and watch to see if this app improves.

- Highly Recommended

This is without a doubt best in class for security and data encryption. Highly endorsed. Great job

- Everyone should be using this

East to use, perfect UI and totally secure

- Fantastic

A really great messaging app!!! It pains me to use other messaging apps now that I use Threema. Threema is definitely in a league of its own.

- Auto Delete

The app needs auto delete, it does not have this function this its downfall.


This was meant to be the BEST from the REST.. every time you make phone calls it breaks up and I believe it’s not 100% encrypted and insecure.... IF I COULD RATE YOU IT WOULD BE ZERO!!! Who ever is running it should be sacked ASAP.👎🏽

- Solid effort at encrypted communication

Excellent app so far with a little room for improvement.

- Auper

Worthy alternative to others. Safe an easy to use

- Good app

Nice easy to use interface. I wish it used the Axolotl 2 protocol like TextSecure.

- Usabilty average

There is still no high-res support for the latest ipad even after the most recent update. Disappointing. Until this is fixed it's unusable for me. Two stars.

- Awesome secure messaging

Secure messaging done properly. Exactly how I envisioned it working. Love the 3 star system and the QR codes.

- Perfect

End to end encryption. Clean. Fast. Dark theme was the cherry on top. Keep it up.

- Best messenger ever!

So much better than WhatsApp! Very neat app, secure and super reliable! Perfect messenger!

- iPad support!

Needs to support iPad.

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- Not many people use this

Someone add me or share their id

- La meilleure!

Vraiment rien à dire de négatif ! Superbe application 👌

- blocked in China.

blocked in China.

- The best!

La meilleur messagerie!

- Dark mode.

Please bring back the possibility to select dark mode (or other king of appearance change) inside the app (user can override the systemwide settings) to have the possibility to distinguish threema from other texting app.

- I love it but no notifications for messages after turning my phone back on everytime for 4.2.3

The older version would notify you of messages as soon as you turn on your phone. On the latest version of Threema (which I got this year), if my phone is turned off and someone sends me a message, I don’t get any notifications at all even when my phone is turned back on already. I flew to Europe so I turned my phone off during the flight. My friend sent me a message while my phone was turned off. After landing in the airport, I turned my phone on. I got notifications for my emails and texts, etc right away with no issues. But Threema never gave me a notification for the messages that I received during the roughly 10 hours that my phone was turned off. Also, my friend said that she only saw the envelope picture next to the message that she sent me which meant that it was only sent to the server so she thought I blocked her too LOL The same thing happens everytime my phone has no battery and loses power. As soon as I turn my phone back on, no notification for messages. I love Threema but how do I fix this issue? I would like to be notified for messages sent to me while my phone is turned off, even without opening the app, as soon as I turn my phone back on again. The older version used to do this. Thank you.

- Enjoying the app so far!

The only thing I’d like to see is more sound choices for messages; I think a greater selection would be nice or maybe even the possibility to choose a tone that you have on your phone. I like the sound selection for calls though, they all sound pretty neat — maybe some similar tones in a shorter sequence could be made for messages? Overall though, it’s been a pleasant app to use thus far.

- Works really smoothly

Spread the word, invite others and get your privacy back!

- 4.2 Spanish Glitch

50% of the app text is now in Spanish, yet I am French and my device is set to French! Had to downgrade to 4.1.3 for a bug-free experience. AVOID 4.2 Edit : 4.2.1 working fantastically well. I recommend updating to this version. 5 Stars.

- Love it ❤️

This app is awesome it keeps me in touch with family overseas ...just love this app

- Highly Recommended

Amazing chat app. Reliable and secure.

- Truly Secure

No glitches. Runs as smooth as iMessage but better since it's fully secure. You'll never have to worry about your information and messages being intercepted with THREEMA! Great app! Worth every penny.

- Good app

So far so good keep it up so fast and smooth

- Great App

Simply the best secure iOS messaging app out there.

- Can't use on extra device

+ nice user interface - doesn't support using same account on multiple devices - not clear on how to use groups

- Great app, recommended on Security Now

I've trusted Steve Gibson's recommendations for years and he hasn't steered us wrong so far. :) Happy with the app

- Very satisfied

Very satisfied about the purchase. Do what it says: secure and fast.

- Awesome app!

Great functionality and best encryption available. Great app! This is wayyy better than whatsapp.

- Easy and simple

Great App. Good replacement of Whatsup. I really like this and feel more secure.

- Great chat client

Great chat functionality throughout, with end to end encryption as a bonus.

- Brilliant App

Hands down best chat app, the fact that they are putting security first is commendable. Interface is smooth and easy on the eyes. The icon has even grown on me, although I'd be interested in seeing it's appearance change. Thank you for putting your time and efforts into such a great app.

- Love it! But…….

Needs iPad version……Also needs to be able to reverse the camera in iPad.

- Greatest app!

So far so good! Will love to have yahoo! Emoticons instead on worthless emoji... Hope the app will stay stable ! Very nice so far! Plz increase video length (1minutes is nothing!)

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Jacqui Lefevre

"But once we got terrorist Mohammad Umar’s phone, we got the entire data extracted by forensic experts in the country.” All the encryption in the world means nothing if you have the device at hand. #cybercrimebond

Chris Ely 🧢⚛☢️😷 | #WeOweUs

@Mikaeri2211 Telegram is less safe than Signal (@signalapp). You may also find the comparison @ThreemaApp put together helpful when evaluating which messenger to choose.

Chris Ely 🧢⚛☢️😷 | #WeOweUs

@Amer1canTh1nker Signal definitely! Telegram is less safe than Signal (@signalapp). You may also find the comparison @ThreemaApp put together helpful when evaluating which messenger to choose.

Threema. The Secure Messenger 4.6.18 Screenshots & Images

Threema. The Secure Messenger iphone, ipad, apple watch and apple tv screenshot images, pictures.

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Threema. The Secure Messenger (Version 4.6.18) Install & Download

The applications Threema. The Secure Messenger was published in the category Social Networking on 2012-12-28 and was developed by Threema GmbH [Developer ID: 535112011]. This application file size is 104.44 MB. Threema. The Secure Messenger - Social Networking app posted on 2022-04-11 current version is 4.6.18 and works well on IOS 10.0 and high versions. Google Play ID: ch.threema.iapp