Conversations 2.21.0+free

A free and open source Jabber/XMPP client for Android. Easy to use, reliable, battery friendly. With built-in support for images, group chats and location sharing. End-to-end encrypted by default. Connects to all modern Jabber, XMPP and Snikket servers.

Features
o End-to-end encryption with OMEMO or OpenPGP
o Send and receive images and other kinds of files
o Encrypted audio and video calls (DTLS-SRTP)
o Advanced machine-in-the-middle detection via channel binding (requires opt-in)
o Share your location
o Send voice messages
o Emoji reactions
o Indication when your contact has read your message
o Intuitive UI that follows Android design guidelines (Material Design 3 with Dynamic Colors)
o High-resolution contact photos (avatars)
o Synchronizes with desktop clients (Gajim and Dino)
o Private group chats and public conferences (with support for bookmarks)
o Message moderation for admins in public conferences
o Address book integration
o Multiple accounts (unified inbox)
o Deliver push notifications to other compatible apps like Tusky, Ltt.rs, DAVx5 and Fennec via UnifiedPush
o Very low impact on battery life

Note: Some of these features require server support. Go to account details and select 'Server Info' from the overflow menu to see if your server has all necessary extensions.

Design principles
o Be as beautiful and easy to use as possible without sacrificing security or privacy
o Rely on existing, well-established protocols
o Do not require a Google account or specifically Firebase Cloud Messaging (FCM)
o Require as few permissions as possible

License: GPL-3.0-only