Freelab messager supports end-to end encryption for medsages based on well know standards like :
Freelab Messenger allows to easily create a messenger account on the freelab chat server or to connect to any xmpp server of your choice. it supports federation and federated communication within distributed xmpp servers.
Freelab Messenger development is focussed on usability and latest features.
OMEMO end to end encryption protocol allows message syncing on several devices both mobile and desktop.
Multi user conferences are available will end to end encryption.
Freelab messenger is optimized for mobile environment with good connectivity, messages recovery and low battery consumption
app includes a dark theme and is tablet convenient.
previous build had around 30000 download
Sources of Freelab Messenger are available under free license. You can ask us for any support for your community or company for privacy messaging app and servers
list of supported XEP by freelab messenger xmpp client :
XEP-0027 Current Jabber OpenPGP Usage
XEP-0030 Service Discovery
XEP-0045 Multi-User Chat
XEP-0084 User Avatar
XEP-0115 Entity Capabilities
XEP-0163 Personal Eventing Protocol
XEP-0184 Message Delivery Receipts
XEP-0191 Blocking command
XEP-0198 Stream Management
XEP-0234 Jingle File Transfer
XEP-0237 Roster Versioning
XEP-0245 The /me Command
XEP-0249 Direct MUC Invitations
XEP-0260 Jingle SOCKS5 Bytestreams Transport Method
XEP-0261 Jingle In-Band Bytestreams Transport Method
XEP-0280 Message Carbons
XEP-0313 Message Archive Management
XEP-0333 Chat Markers
XEP-0352 Client State Indication
based on intial project conversation from daniel gultsch