Zoiper IAX SIP VOIP Softphone

In-app purchases
4.4
74.2K reviews
5M+
Downloads
Content rating
Everyone
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About this app

Zoiper is a IAX and SIP softphone application for VoIP calls over 3G, 4G/LTE, 5G or WiFi. There are no advertisements.

For support please visit: http://community.zoiper.com

Zoiper softphone offers a simple user interface and superb audio quality for smooth Voice over IP experience.

Contact us for whitelabel versions with your logo and company or for our VoIP SDK if you want to build your own solution or visit http://www.zoiper.com/en/voip-sdk

Available for both SIP and IAX systems, Zoiper is a phone solution perfectly fit for end users, service providers, call centers or any business willing to benefit from VoIP communications.

Want to distribute it to your users? Use the free automatic provisioning system on http://oem.zoiper.com and avoid tedious manual configurations!

IMPORTANT: Zoiper softphone is a standalone client-side software VOIP phone application and is not bundled together with a VoIP service. To make and receive VoIP calls using Zoiper, you must subscribe to any SIP or IAX based service provider across the globe.

Zoiper's key features include:

- Support for different color schemes
- Bluetooth support
- Lowest battery usage with highest reliability / stability on google play
- Lowest latency of all android softphones
- Excellent audio quality, even on older devices
- Supports calling over 3G and WIFI
- Multiprotocol with SIP and IAX support, compatible with all RFC
compliant PBXs
- Background / multitasking support
- Integration with the native android contact list
- Speakerphone mute and hold
- UDP and TCP transports (use TCP for better battery life!)
- Supports g711 (ulaw, alaw), speex, iLBC and gsm codecs
- Supports sending of DTMF
- DNS SRV
- Built-in echo cancellation
- STUN support
- Change ringtone per account
- Call waiting
- Video support (with subscription)
- ZRTP / TLS support (with subscription)
- Call Transfer (with subscription)
- Wideband audio (with subscription)

Zoiper is also available as customized branding solutions or VoIP SDK, please contact us for more information.

- Phones that are unstable because they have broken audio implementations:
Alcatel one touch series (poor audio drivers cause system freezes and crashes)
HTC one m8 (causes freezes.)

WARNING: using Zoiper as a default dialer may interfere with dialling 911 emergency services.

WARNING: Please use only versions from the Google Play Store, we have reasons to believe some of the (russian) .apk files floating on the web contain a trojan that might steal username and password and make fraudulent calls. The official Zoiper from Google Play is safe to use.
Updated on
Oct 10, 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info and App info and performance
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.4
71.2K reviews
A Google user
February 7, 2019
I bought the Gold version for enhanced bluetooth support. Even after uninstalling the app, bluetooth for my Note 9 was totally FUBAR. In addition, lacks support to forward calls if no answer, a directory for other SIP users or any type of contact support. It connects very well to our VOIP system, that is the only upside I found with it.
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Securax EOOD
August 10, 2019
Can you please try the latest beta: https://play.google.com/store/apps/details?id=com.zoiper.android.zoiperbeta.app&hl=en It has a lot of bluetooth related changes.
Sara Fahrney
November 5, 2020
I've paid for the monthly subscription as well as the premium upgrade. I've been going several weeks now in which I am unable to answer any calls, they all go straight to voice mail. I contacted customer service, which you can only do by email, last week and the service worked great for two days. Now I'm back to the same issues as before. Would be nice to be able to actually talk to a real person @ tech support.
5 people found this review helpful
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Securax EOOD
November 6, 2020
Would it be possible to contact us again at android@zoiper.com so we can find your previous request and check why this is happening again?
A Google user
January 10, 2019
Well I would love to give the app 5 stars for sure it has everything and works well. HOWEVER on my Galaxy s8 which it may be an issue specific too, the caller ID for the incoming call is darn near illegible! It goes off the screen. If it's a cell phone without a name all you will see is wireless caller (21..... I mean there is no setting to change it. I have to miss the call and check the call log to see the number. Pretty much this is a deal breaker to me. I downloaded grandstream waze also free
9 people found this review helpful
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Securax EOOD
January 10, 2019
Thank you for your feedback, can you please send us a screenshot on android@zoiper.com ? Are you using custom fonts or font sizes on your phone ?

What's new

v2.23.13
Bump version code