iPhone Screenshots


Acrobits Softphone, the perfect app for entry into the world of SIP.
*** Featuring Video calls over Wi-Fi

Check out the video tutorial and knowledgeable article at the links below.



With loads of preconfigured providers and an extremely intuitive user interface, Acrobits Softphone is simple to configure and a delight to use. Designed for ease of use but still extremely customizable, Acrobits Softphone is both the perfect Softphone to ease new users into the world of SIP and a reliable, feature rich client for veteran VoIP users.

Business users and veteran VoIP users should also check out our business caliber SIP Client, Groundwire. Just go to More iPhone Apps by Acrobits and click on Groundwire. It contains all the features of Acrobits Softphone and more.

“Acrobits Softphone is one of the best designed VoIP on the iPhone applications available today.”

Read more: http://bit.ly/vB6dQ9

“Acrobits Softphone is my New Favorite VoIP SIP Client”

Read more: http://bit.ly/a69OZP

For the list of providers and VoIP services tested with Softphone, see http://www.acrobits.cz/about-us/partners#tab_verified-voip-operators

- Video calls, H263 and H264 codecs
- Push Notifications, a reliable way to receive calls when Acrobits Softphone is closed or in the background
- Call recording (only available for SIP calls, will not record calls made from your GSM line)
- iOS4 backgrounding support
- Bluetooth headset support (iPhones only)
- Customizable ringtones
- Quickdial, your 12 favorite contacts only one tap away
- Quick import of accounts from major VoIP providers including sipgate, Gizmo5, voipcheap and many more.
- Excellent sound quality, supports Opus, G.722, G.711, iLBC and GSM. Make an in app purchase to add G.729 for great performance over 3G networks
- Highly configurable settings
- Native Contacts Integration

Acrobits Softphone fans, please rate Acrobits Softphone or leave a review.

If you have an issue with Acrobits Softphone, please contact our support even if you leave a review stating the problem. We are unable to respond to reviews so even if your issue is simple to resolve, we have no way of letting you know. Acrobits Softphone is highly configurable so problems that seem insurmountable may just require a couple of adjustments to the settings.

Acrobits Softphone has more options for receiving calls when not in the foreground than any SIP Client on the App Store.  But since they all work very differently, we don't turn them on by default.  Check out http://www.acrobits.cz/hesk/knowledgebase.php?article=53 for a comparison of the options available.


SIP - Acrobits Softphone is a SIP Client, not a VoIP service. You must have service with a VoIP provider that supports use on a standard SIP client to use it.


VoIP over 3G - Be aware that some mobile operators prohibit or restrict the use of VoIP over their network. They may prohibit the use of VoIP or impose additional fees when using VoIP over their network. By using the app over 3G, you agree to abide by any restrictions your cellular carrier imposes and agree that Acrobits will not be held responsible for any fees or liability imposed by your carrier for using the app over 3G network.

What's New

Version 5.9

- improved iPhoneX compatibility
- changed logic of picking 20ms vs. 30ms iLBC mode
- T9 search bug fix: some search results were not clickable
- several missing translations added
- improved h264 video quality

Customer Reviews

Way better than whats out there

Sameer Uchagaonkar

I will keep it short and simple by saying that this software is all you need. My voip provider wasnt in the preconfigured list by Acrobits, but as I am techinical I knew the fact that this softphone should be able to work with any voip provider(PENNYTEL in my case) as long as you have a domain. I popped in all the details and it was all ready to rock and roll. It took me a while to get used to software and all the options it had, but after 10 mins I was good to go. In addition my bluetooth headset works quite well with it and ofcourse the call connects quite quickly. I guess its worth the heafty price tag next to it. These guys have done a bit of work :)

Getting better all the time


I still find this app the one I go back to after trying others. Calls work every time, app stays dormant in background and wakes when someone calls. Yes it does drain the battery if it's set to keep active all the time, but I bought a car charger and keep charging as much as possible and all fine. We now use the app as our home phone (iinet NDSL) on an old iPhone 3G.

Highly recommend!


Worked perfect from day one, been using for 2 yrs. Tried other voip apps, but they failed. REALLY appreciate it's backward compatible to i0S 6, unlike many iOS app developers, that leave their customers behind and only support the latest i0S.


51.6 MB
Requires iOS 10.0 or later. Compatible with iPhone, iPad and iPod touch.
English, Arabic, Bulgarian, Czech, Danish, Dutch, French, German, Hebrew, Hungarian, Indonesian, Italian, Japanese, Korean, Norwegian, Persian, Polish, Portuguese, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Thai, Traditional Chinese, Turkish
Age Rating
Rated 4+
© 2009-2017 Acrobits
In-App Purchases
  1. G.729 Annex A Codec $14.99
  2. ZRTP For Outgoing Calls $38.99


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

  • Siri

    Get things done within this app using just your voice.

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