語音與視像聊天

TRIfA

TRIfA Tox Client

baresip+

SIP and mobile calling and messaging User Agent for Android based on baresip lib

baresip

SIP and mobile calling and messaging User Agent for Android based on baresip lib

Element Classic

Previous generation Element

Jami

自由且私密地分享

SimpleX Chat

SimpleX Chat - e2e encrypted messenger without any user IDs - private by design!

aTalk

XMPP/Jabber client with encrypted instant messaging and video calls

Element X - Secure Chat & Call

Sovereign. Seamless. On Matrix

Wire

Threema Libre

Secure and private messaging

Quicksy

輕鬆進入輕鬆發現的 Jabber/XMPP

Conversations

可加密、易於使用的 XMPP 即時訊息,為您的行動裝置設計

another.im

Yet Another Conversations fork but...

monocles chat

is a full-featured XMPP chat client

Yelling

Secure messaging with chat, voice and video calls.

Olvid

Private messaging for everyone

Ermis

Ermis M is an open-source, privacy focused mobile chat application.

Nextcloud Talk

Have private video calls and chat using your own server.

Jitsi Meet

Instant video conferences efficiently adapting to your scale

Session F-Droid

Encrypted private messenger

Cheogram

Chat on the Jabber network (XMPP protocol); focus on features for gateway users

Mumla

Voice chat on Mumble servers

Snikket

Personal messaging app for groups, with a self-hostable open-source server

Linphone - open source SIP client

SIP(VoIP)電話

Meshenger

一個開源的端對端

ThreatScoopOnionChat

A Forked Version focused on privacy from SESSION

aTox

aTox - 功能強大,設計美觀的 Tox 客户端

Sipdroid

SIP(VoIP)用戶端

Databag

A federated chat client designed for privacy and selfhosting.

StoneAge

A self-hosted P2P messenger - you will need an S3 bucket to use it