Sable is a Matrix client built to enhance the user experience with quality-of-life features, cosmetics, utilities, and sheer usability. It is a fork of Cinny.

Features:

End-to-end encrypted messaging, with encrypted push notification previews decrypted on-device
Push without Google Play Services, using a built-in UnifiedPush distributor — no separate distributor app required
Voice and video calls over MatrixRTC
Spaces, threads, and forum rooms
Customisable app icons, themes, and a configurable GIF provider
Message reporting, forwarding, and read-receipt controls

Sable is free software licensed under the AGPL-3.0. Crash reporting is opt-in and disabled until you consent.