A cross-platform mobile messaging app which allows you to exchange messages without having to pay for SMS.
Send free messages and make free calls to other Viber users, on any device and network, in any country!
Skype keeps the world talking. Call, message and share whatever you want for free.
A messaging app with a focus on speed and security.
Video chat with millions of users in thousands of chat rooms.
Record Skype, Hangouts, Viber & Facebook Audio/Video calls.
Post photos and videos to the web.
An IRC client for Mac OS X.
An online translator for all your messages in Skype.
All-in-one voice and text chat for gamers that’s free, secure, and works on both your desktop and phone.
An internet phone or Voice Over IP phone (VoIP).
Send messages, files, create groups and make Tox to Tox audio and video calls. Securely.
Desktop chat client for Google Hangouts.
A free messaging app for WhatsApp, Facebook Messenger, Telegram, Slack and more.
Group and private chat, file sharing, and integrations.
Team collaboration software.
A free instant messaging application for Mac OS X that can connect to AIM, MSN, XMPP (Jabber), Yahoo, and more.
A communications service that transforms online meetings with a secure, easy-to-use application that you can trust.
An open source, peer to peer, LAN messenger.
The absolute easiest way for teams to securely chat, share and store files online while remaining compliant with regulators.