aTalk - xmpp client for android rich in features:
* Instant messaging in plain text and E2E encryption with OMEMO or OTR
* SSL Certificate, DNSSEC and DANE for secure Connection Establishment
* OMEMO Media File Sharing for all files contents
* Fault-tolerance file transfer algorithm, ease with sharing reliability
* File sharing for all document types and images with thumbnail preview
* Support unread message badges in contact and chat room UI
* User defined option for quite hours
* Support Text to Speech and speech recognition for chat session
* XEP-0012: Last Activity time associated with contacts
* XEP-0048: Bookmarks for conference room and autoJoin on login
* XEP-0070: Verifying HTTP Requests via XMPP entity for user authentication
* XEP-0085: Chat State Notifications
* XEP-0124: BOSH with Proxy support
* XEP-0178: Use of SASL EXTERNAL with TLS Certificates authentication
* XEP-0184: Message Delivery Receipts with user enable/disable option
* XEP-0251: Support Unattended and Attended Jingle call session transfer
* XEP-0313: Message Archive Management
* XEP-0391: JET for OMEMO encrypted media file sharing
* Call waiting, placing current call on hold; switching between calls
* Implement Jabber VoIP-PBX gateway Telephony support
* Integrated Captcha protected room user interface with retry on failure
* Support media call with ZRTP, SDES and DTLS SRTP encryption
* GPS-Location implementation standalone tool, send locations to your desired buddy for real-time tracking or playback animation
* A 360° street view of your current location use for self-guided tour
* Built-in demo for GPS-Location features
* Integrated photo editor with zooming and cropping for avatar
* Last message correction, message carbons and offline messages
* In-Band Registration with captcha option support
* Multiple accounts support
* Dark and light Themes support
* Multi-language support (Bahasa Indonesia, Chinese Simplify, English, German, Portuguese, Russian, Slovak and Spanish)
* Privacy Policy: https://cmeng-git.github.io/atalk/privacypolicy.html

aTalk (Jabber / XMPP)