Sideline - Second Phone Number

Sideline - Second Phone Number application logo

Sideline® is more than a 2nd number. It’s a communication app that helps you work efficiently, connect with customers, and collaborate as a team. Professionals choose Sideline for its unmatched reliability and feature-rich interface that separates work from life. It comes with all the calling, texting, and voicemail features you need to start, run, or grow your business.

Try it risk free for 7 days. Then subscribe to a monthly or yearly plan and let Sideline pay for itself in happy customers and new business opportunities. There are no contracts so you can cancel anytime.


AUTO-REPLY – If you miss a call, Sideline responds automatically with a text or MMS.

TEAM NUMBER – Split one number with multiple devices so your team can be more responsive.

CUSTOM NUMBER – Build your identity with numbers such as “(555) PET-SHOP,” or “(555) FLOWERS.”

LOCAL AREA CODE – Search area codes to find a local number for your company.

BUSINESS TEXTING – Text-enable your business to easily connect with customers.

ENTERPRISE DASHBOARD – Manage company numbers on employee devices. (Enterprise account required. See for details)


CARRIER RELIABILITY – All calls are cellular (not VoIP) to make your 2nd number as reliable as your 1st.

UNLIMITED CALLING – Calls use your existing carrier plan. No extra calling credits needed.

MESSAGING – Texting includes SMS, MMS picture messaging, group messaging, and more.

CUSTOM CALLER ID – It’s clear which number is ringing so you can prioritize accordingly.

SEPARATE VOICEMAIL – Record a professional greeting or set up multiple for any circumstance.

VOICEMAIL TO TEXT – Save time and conveniently read voicemail transcriptions as a text.

DO NOT DISTURB – Send Sideline calls directly to voicemail on nights, weekends, or holidays.

NUMBER PORTING – Transfer an existing number to Sideline from another device or landline. 

WEB MESSAGING – Access your Sideline number online and text from the desktop.


The required Sideline subscription is $9.99/month or $99.99/year. This subscription and other optional in-app subscriptions are automatically billed monthly or annually to your iTunes Account and auto-renew, unless you turn off auto-renew at least 24-hours before the end of the current period. Payments are charged to your iTunes account upon confirmation of purchase. You can turn off auto-renew or manage subscriptions in your iTunes & App Store account settings. Cancellations take effect at the end of the active subscription period. Any unused portion of a free trial period is forfeited when purchasing a subscription.

Privacy policy & terms of use:

Sideline - Second Phone Number App Description & Overview

The applications Sideline - Second Phone Number was published in the category Business on 2015-08-25 and was developed by Pinger, Inc.. The file size is 101.66 MB. The current version is 3.18 and works well on 9.0 and high ios versions.

• We now have 1 month, 3 month and annual subscription options to give you more savings and flexibility when picking a Sideline plan.

• We've made some more visual improvements throughout the app to keep things tidy.

Sideline - Second Phone Number App Tips, Tricks and Rules

Sideline - Second Phone Number Reviews


I need help  MzODB  5 star

I just signed up for service and I’m not able to make or receive a call. I’ve used this app before and it was wonderful but I remember I had to update something on my phone to get it to work


Incoming calls  atrueKING  4 star

Needs to be more private I don’t like that when the app is deleted and someone calls it still pops up as sideline incoming call


Great app  RJ4E  5 star

Works well. Doesn’t crash. All around good

H Burns PT

Issues lately  H Burns PT  3 star

When I first started using sideline I had no issues. Recently, my business has started picking up and I’ve started getting more phone calls through my business line through sideline and I’ve been having a lot of issues. One being an almost 10 second delay while trying to talk to a client, another, I continue to have complaints of a “fuzzy connection”. Hoping there’s an update coming soon that can help with some of these bugs because I really love the idea of the app, but I end up having to use my regular phone number to call clients back which defeats the purpose. Please advise. Thank you!


Works great love the auto text function  craigyeggy  5 star

It populates my contact list It does auto reply when you get an incoming all. This is awesome. Looks and feels like regular texting.

Jill Zung

Normally  Jill Zung  1 star

Normally I would give all five stars but I recently lost my job and cannot keep up with the Sideline account. I know I have four months left but I would rather just cancel even if it means having to pay an extra thirty in the future but it is not allowed wing me to cancel the subscription. I have a screen shot of this error. If I can get this issue resolved I will change it from one to five stars again.


Works flawlessly for me  SQLGUY69  5 star

I use Sideline for online purchases requiring contact info. Also perfect for food carry-out pickups. Shopping for a car (or any face to face purchase) is/was so much less annoying since calls go to Voicemail. Since cellphone numbers are becoming unique personal identifiers, Sideline completely insulates my true identity. For whatever reason I rarely receive cold or “Robo” calls. And because I have set my iPhone up such that any caller not in my Contacts doesn’t ring and goes straight to Voicemail, the convenience quotient is very high. I was an early adopter and have to say that it is difficult to find a support team on any app (or PC software) that has been more responsive. I never wait more than 24 hours and communication is always professional, prompt and clear.


Great for an extra number  Pjsaffer  5 star

Would like to port a number over but not sure how to do it

mr charlie cow

Small Business line  mr charlie cow  5 star

I have a small construction company and to keep costs down, I was using my personal cell phone for my business. It didn't work out too well. I was getting too many calls and missed a few important business calls because I thought they were personal calls. So I considered getting a second phone but I didn't want to carry 2 phones. Sideline solved all my problems. They gave me a great number and the app is user friendly. Now my business and personal calls are separate and I even have a dedicated voicemail for my business. It is an Excellent product. I have already recommended it to my friends and colleagues. Worth the money


Great idea. Lacks many basic futures  Moe112  2 star

I had this for about a month now. I like how it gives me the future of a number. But be aware the messaging app is really basic and doesn’t offer basic futures like search within messages. Or view shared media with that person. It also sends a hyper link with videos that might seem spam to receiver. I can’t seem to find a way to disable.


Sideline support  Jesus32314  5 star

What I’d like most of sideline that it’s not a automatic message response. Sideline do carry a live customer support that’ll respond rapidly or least 24 hours later. I enjoy the service and hopefully video will be acceptable one day through messaging✨ I’d recently has issues with my account... the technician kept in contact until the matter is resolved🙂✅


Not receiving voicemails and other HUGE problems  Charmckernan  1 star

I am having recurring issues with this app and DO NOT recommend it at all. When people call me, my phone is not ringing and sends them straight to voicemail (I do not have forward to voicemail enabled). I get a notification of the call only after. Additionally, when they leave a message, I am not receiving the voice message. When the number is called and sent to voicemail, the caller hears my PERSONAL voicemail message and not the one I have set up on sideline. I am furious. I pay $9.99 a month for this service and I have now missed god knows how many voicemails from clients and prospective clients. This has likely made a huge dent in my business, as I am only just realizing that I am not receiving voicemail because a friend informed me of such. This has made me look unprofessional and unavailable. I have sent an email to support looking for answers and reimbursement and I will likely be switching my business to google voice.


IPhone se  anjay7  5 star

Love it


2 phones # on 1  Hotfire52  5 star

I like it i use my original number for work and this app number for private calls so far is working perfect call and text I give it 5 stars service and 👍


Text Messages Don’t Always Arrive  KBPnickname14  1 star

I never write bad reviews. But after my experience here I feel I have to let others know what happened to me. I have had sideline for over two years. After they changed to a subscription their service has been terrible! I have had text messages from clients not arrive or only parts of a conversation arrive - which has made me look like an idiot and unresponsive to my clients when I don’t respond. I have contacted their support team numerous times and for the times they actually decided to respond to me they told me they couldn’t fix it and to let me know if it happened again. It. Has. Happened. Every. Month. For. The. Last. Six. Months. I have sent them the numbers the lost messages were sent from with the times it was sent. I have screen shots from my clients of their messages to me that never arrived. They have no response or fix for me and refuse to refund me my subscription fee. I am hugely disappointed in their product and warn anyone wanting to use it for their business to stay away. Look into another product if you want to actually get your messages from clients.


Great app  hubbard.shannonm  5 star

I'm sad that they started charging but it works perfectly.


False advertising  rorymomo  1 star

Why do i have to agree to a 7 day free trial now before i can use this not about to pay to use this app and it once was free

Reem's Breakfast

Hi  Reem's Breakfast  5 star

I love this app


Sideline  uniquejones  5 star

It’s great! I didn’t need to go out and buy a whole new phone!


Needs to fix caller ID  Chavis4  3 star

I use sideline for my business and I love it. The only downside is that when my phone is locked and someone calls it just pops up as their number not their name that I have stored. Please fix this.

Sideline - Second Phone Number Comments

Sideline - Second Phone Number Business Download