Supported features between the different clients ================================================ | Feature | Blink Qt | Blink Cocoa | Sylk Desktop | Sylk (Chrome based) | Sylk (Firefox) | Sylk (Safari) | Sylk (mobile) | |------------------------------:|:-------------------:|:----------------:|:------------:|:-------------------:|:--------------:|:-------------:|:-------------:| | **Audio Calls** | | | | | | | | | g711 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | | g722 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | | opus | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | | zRTP | ✓ | ✓ | ✕ | ✕ | ✕ | ✕ | ✕ | | **Video Calls** | | | | | | | | | h264 | Not tested | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | | VP8 | ✓* | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | | VP9 | ✓* | ✓ | ✓ | ✓ | ✓ | ✕ | ✓ | | **Screensharing** | Only to Blink Cocoa | Only to Blink QT | Is video | Is video | Is video | Is video | Is video | | **Messages** | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | | **PGP encryption/decryption** | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | | **PGP key lookup** | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | | **PGP key import/export** | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | | **OTR** | ✓ | ✓ | ✕ | ✕ | ✕ | ✕ | ✕ | | **History** | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | | **History replication** | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | | **IMDN** | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | * Could only see own outgoing video on both blink-qt and other devices