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Line2 - Second Phone Number

By Line2, Inc.

This app is only available on the App Store for iOS devices.


Line2 is your second number that works on your iPhone and all your other devices as a full-featured business phone system, designed for mobile professionals, freelancers, and entrepreneurs. Call and message from a separate number on devices you and your team already have, via Wi-Fi or your existing cellular network, with anyone in the U.S. and Canada starting at $9.99/month, or with other Line2 users for free.

The latest Line2 app for iPhone and iPad now comes with a native calling experience enabled by CallKit. You can now enjoy incoming calls that come in full screen with a visual caller ID, that can be answered directly from the lock screen with a simple swipe — exactly like a regular iPhone call.

Line2 is free to download and to use to call and message other Line2 users. Invite others to download Line2 today so you can communicate with them at no additional cost and without any ads. To call and message users outside of Line2, simply upgrade with an in-app purchase.

Experience the ideal phone system for you and your business with a designated number in the area code of your choice. Keep business and personal separate without needing to purchase clunky landline phones or carry a second mobile phone.

Use your Line2 number across your iPhone, Mac, PC, iPad, and even Apple Watch.
Get a native calling experience with CallKit integration. Enjoy incoming calls that come in full screen with a visual caller ID that can be answered directly from the lock screen with a simple swipe — exactly like an iPhone call.
Choose a number in any city in the U.S. or Canada.
Enjoy picture and group messaging — even using Siri — with anyone in the U.S. and Canada.
Get a rich and virtually unlimited calling experience that includes caller ID for incoming calls, call forwarding, group calling with up to 20 people, number blocking, and much more.
Enjoy quick and easy setup with no additional hardware required.
Use over Wi-Fi/4G/LTE and cellular voice so you’re never without service.

Looking for a business solution for your small business that grows with your company and offers advanced features like an auto attendant, toll-free numbers, online faxing, and much more? Learn more on our website.

Line2 offers monthly paid subscriptions starting at $9.99 per month or get 2 months free with an annual subscription. Subscriptions will be charged to your iTunes account at confirmation of purchase. Subscriptions will automatically renew unless you turn off auto-renew at least 24 hours before the end of the current subscription period. You can manage your subscriptions in Account Settings after purchase.

Privacy Policy:
Terms of Service:

Questions or comments? We’re here to help, seven days a week: or tap Settings -> Help from within the app.

What's New in Version 11.0

Improved Line2 messaging
- Increased media attachments to up to 1MB
- iOS sharing of images from iPhone Photos
In-app purchase for annual subscription - Get 2 months FREE with an annual subscription!
Audio improvements when receiving a second phone call
New Line2 logo - tell us what you think!


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Customer Reviews


I use to use Side Line App (competitor to Line 2)but had to find another solution since they started charging for their app. I figure if I need to pay for this kind of functionality might as well get something that has more functionality then just a second phone line. Line 2 fit the bill. I have been using this app for a few weeks and I can say the quality of the calls are poor to mediocre. The worst is when the app gets updated no calls come in to your phone unless you log off and log back in to the app. I lost 30 calls due to this in one day. Lost sales/revenue due to this glitch. Will keep evaluating this app since I’ve been using it for a few weeks. I due like the auto attendant after hour feature but I might have to evaluate if it’s worth loosing customers due to the poor quality and functionality. DISAPPOINTING!!!

Best overall value for a 2nd mobile line app!

I love this app and all the functionality it provides, such as auto attendant to automatically route calls, call screening, after hours auto attendant, group calling, and a local online fax number (for others out there who still use fax). The call quality is crystal clear and the interface works easily across many operating systems. The dashboard is awesome. Keep up the good work!

Terrible service for business

I’ve had this app for about 2 months. At first it seemed to work ok and I received a lot of calls and messages from the company making sure I was happy. Unfortunately I’ve been missing a lot of important phone calls through this service and app.

When trying to go through support, I can’t get a real person on the phone. It takes on average about 6 hours to get a response from support. I’d much rather speak to someone on the phone for an immediate resolution as opposed to trail and error through emails...

Line2 - Second Phone Number
View in iTunes
This app is designed for both iPhone and iPad
Offers Apple Watch App for iPhone
  • Free
  • Category: Productivity
  • Updated:
  • Version: 11.0
  • Size: 230 MB
  • Apple Watch: Yes
  • Language: English
  • Seller:

Compatibility: Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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Top In-App Purchases

  1. Line2 Standard$9.99