Blink is a state of the art, easy to use multimedia SIP client. It is elegant, intuitive to use and feature-full.

Blink can be used without an account on the LAN, or can be configured to use SIP accounts from any service provider. Free account sign-up to SIP2SIP free service is also provided in case you don't have a SIP account.

For support go to

* OSX Integration (iCloud, iTunes, Address Book, Keychain, Voice Over)
* Audio (Opus codec) optimised for full spectrum audio
* Acoustic echo cancelation, no headsets needed
* Presence (SIP SIMPLE RLS and XCAP protocols)
* Instant Messaging and File Transfers (MSRP protocol)
* Screen Sharing (Apple VNC over MSRP protocol)
* Multiparty conferencing (audio, chat and file transfers)
* End-to-end chat encryption (OTR protocol)
* End-to-end audio encryption (ZRTP protocol)
* Corporate directory services (LDAP protocol)
* Compatible with telephony applications (dialpad, call hold, call transfer)
* Fine-grained settings for SIP experts

The complete features list is available at

Known interoperability issues:

What’s New

Version 4.6.0

Compatibility fixes for macOS High Sierra

Ratings and Reviews

1.2 out of 5
5 Ratings

5 Ratings

langep_ ,

No video on MAC

I bought this in hope for video support which is listened as feature on the website but it does not show up in the app on Mac. Disappointing.

Juwa1 ,

No Audio on Sierra

Why is this non working app in the Appstore? It does not work on Sierra, no audio (mic or output). Sad!

nerdhappy ,

Great SIP software, possibly the best I've used

I'ved tried lots of SIP softphones and I've stuck with Blink. I rarely have problems, and usually I trace it back to my VOIP provider. I love being able to have multiple profiles. Google Voice addition would be great. The only issue I've had has been a recurring problem with echo noise cancellation. Other than that, great stuff!


AG Projects
40.8 MB

OS X 10.11.0 or later, 64-bit processor


English, Dutch, Portuguese, Romanian, Spanish

Age Rating
Rated 4+
© 2019-2017 AG Projects


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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