Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.

experts Open Source

The Super App with Instant Messaging

experts free

Session is a private messenger that aims to remove any chance of metadata collection by routing all messages through an onion routing network.

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WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.

experts free

Mattermost is an open source alternative to Slack.

experts Open Source

Step up your game with a modern voice & text chat app. Crystal clear voice, multiple server and channel support, mobile apps, and more.

experts Open Source