Make voice and video calls easier—and more securely—with a SIP softphone app that supports push notifications, HD voice and video, and more.

Acrobits Softphone is preconfigured to support many of the most popular providers. Download Acrobits Softphone today to stay connected with friends, family, and coworkers using an app that is built to deliver high-quality communications, a more secure experience, and an intuitive UI.

What can Acrobits Softphone do for you?

High-quality audio. Experience crystal clear communication. We support Opus, G.722, G.729, G.711, iLBC, and GSM audio formats.

HD-quality video. Communicate in up to 720p HD. Our app supports both H.264 and VP8.

Military-grade encryption. Keep your data safe with our private encryption stack that uses SRTP, ZRTP, and TLS.

Reduce your battery drain. Acrobits Softphone supports push notifications, making it easier for you to stay notified without draining your device's battery.

Seamless call transition. Make calls using WiFi or your data plan. Acrobits Softphone offers seamless transition during the critical handover stage.

Customize your experience. Acrobits Softphone is highly customizable. Customize your SIP settings, the UI, ringtones, and more.

5G-friendly. Take advantage of all the benefits 5G has to offer with an SIP softphone that's built for 5G.

Multi-device compatibility. Acrobits Softphone is compatible with most iPhones and iPads.

No hidden fees. Don't worry about hidden fees or subscriptions. Acrobits Softphone carries a one-time fee.

Lifetime support and updates. Each license of Acrobits Softphone comes complete with lifetime support and unlimited updates.


"The best sip app for iPhone!"


"This is a truly great SIP/VOIP client. Easy to configure, multiple accounts, superior audio quality, mic boost, volume boost...it's got it all."


"Thanks to this app, I got VOIP working perfectly (...) sound quality is way better than I was expecting. The Softphone is entirely intuitive"


Are you a business user? Try our business-focused app Groundwire for enhanced work from home features.