Jitsi (previously SIP Communicator) is an audio/video and chat communicator with full end-to-end encryption that supports prot ...

Wire is a secure and private messenger for phones, tablets and desktop. Crystal clear voice and video calls, private group cha ...

TextSecure and RedPhone have been merged to create Signal! Using Signal, you can communicate instantly while avoiding SMS fees ...

Hangouts is a messaging app that lets you send and receive messages, photos and more, and even start free video and voice call ...

Conversations is a privacy focused, open source XMPP Texting [Jabber] client for Android 4.0+ smart phones with wife-approved ...

Telegram is a messaging app created by former VK creators with a focus on speed and security. It’s superfast, simple and free. ...

ChatSecure is a free and open source messaging app that features OTR encryption over XMPP. You can connect to your existing ac ...

Riot (formerly Vector) is an opensource interoperable app running on Web, iOS and Android. It is built around chat rooms, both ...

With the rise of widespread government monitoring programs, Tox is an easy to use application that allows you to connect with ...

WhatsApp Messenger is a cross-platform mobile messaging app which allows you to exchange messages without having to pay for SM ...

Trillian is an instant messaging app that works on phones, tablets, and desktops while keeping your chats neatly synchronized ...

Linphone is an internet phone or Voice Over IP phone (VoIP). With Linphone you can communicate freely with people over the int ...