Blink Pro 4+

An easy to use SIP client

AG Projects

    • 1.8 • 6 Ratings
    • $35.99



Blink is an easy to use multimedia SIP client.

* OSX Integration (iCloud, iTunes, Address Book, Keychain, Voice Over)
* Clear audio using Opus codec optimised for full spectrum audio
* Telephony compatible codecs: AMR, G.711, G.722
* Video calls using H.264, VP8 and VP9 codecs
* Acoustic echo cancelation
* Presence (SIP SIMPLE RLS and XCAP protocols)
* Chat and File Transfers sessions (MSRP protocol)
* Instant Messaging (SIP Message)
* Screen Sharing (VNC 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)
* OpenPGP support for SIP messaging
* Compatible with telephony applications (dialpad, call hold, call transfer)
* Fine-grained settings for SIP experts

Blink does not collect any data. Contacts accessed by Blink from system address-book are not uploaded to any servers.

What’s New

Version 6.2.1

Messaging fixes

Ratings and Reviews

1.8 out of 5
6 Ratings

6 Ratings

Nicktastic ,

This app crashes . . . . . a lot!

When it works, it is beautiful. When it doesn’t work correctly it is really annoying. The active calls box sometimes hides during calls, which makes it impossible to transfer calls.

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.

Developer Response ,

This was fixed, update to latest version 5.1.0. Video is present

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!

App Privacy

The developer, AG Projects, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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