Messaging Apps

TeamSpeak Client
Free
Quality voice communication via the Internet.
Telegram
Free (Open Source)
A messaging app with a focus on speed and security.
Viber
Free
Lets you send free messages as well as make free calls to other Viber users, on any device and network, in any country!
Ferdium
Free
All your services in one place built by the community.
WhatsApp
Free
A cross-platform mobile messaging app which allows you to exchange messages without having to pay for SMS.
Discord
Free
All-in-one voice and text chat for gamers that’s free, secure, and works on both your desktop and phone.
AdiIRC
Free
An IRC client with multiserver support and a customizable interface.
Linphone
Free
Communicate freely with people over the internet, with voice, video, and text instant messaging.
Softros LAN Messenger
Free Trial
An easy-to-use LAN messaging application for safe, secure and effective intra-office communication.
Element
Free
Secure and independent communication, connected via Matrix.
Retroshare
Free
Secure communication for everyone.
LAN Messenger
Free
A free instant messaging application for communication over a local network.
LINE
Free
Exchange free instant messages with friends whenever and wherever with one-on-one and group chats.
Session
Free
An end-to-end encrypted messenger that minimises sensitive metadata, designed and built for people who want absolute privacy and freedom from any form of surveillance.
Skype
Free
Skype keeps the world talking. Call, message and share whatever you want for free.
BeeBEEP
Free
An open source, peer to peer, LAN messenger.
HighSide
Free Trial
The secure Slack/WhatsApp alternative for organizations handling regulated/sensitive data.
Rambox
Free
The only way to organize your workspace and boost your productivity.
Tox
Free
Send messages, files, create groups and make Tox to Tox audio and video calls. Securely.
Trillian
Free
Chat with other Trillian users or those on Facebook, Google, AIM, ICQ, XMPP, Yahoo!, Twitter, and more.