Telegram

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

21 Alternatives To Telegram

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Bitrix24

Bitrix24 is a free (for small businesses) social enterprise platform. It is a united work space which handles the many aspects of daily operations and tasks. Create your own social intranet in minutes!
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Confluence

Confluence is content collaboration software that changes how modern teams work
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Discord

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

Facebook Messenger

Facebook Messenger is a faster way to message.

Jitsi

Open-source video calling and chat platform.

LINE

LINE is a Japanese proprietary application for instant messaging on smartphones and PCs.

Pidgin

Pidgin is an easy to use and free chat client used by millions. Connect to AIM, MSN, Yahoo, and more chat networks all at once.

Samepage

Easy to setup collaborative tool and file syncronization cloud application

Signal

Fast, simple & secure messaging. Privacy that fits in your pocket.

Slack

A messaging app for teams who see through the Earth!

Textnock

Textnock is a marketing and communication platform designed to help extend our clients’ reach to the right people with the right message and at the right time.
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Threema

A secure, end-to-end encrypted Swiss instant messenger with a focus on privacy.

Tox

Send messages, files, create groups and make Tox to Tox audio and video calls. Securely.
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Trello

Infinitely flexible. Incredibly easy to use. Great mobile apps. It’s free. Trello keeps track of everything, from the big picture to the minute details.

Trillian

Trillian is a decentralized and federated instant messaging platform that lets your whole company send private and group messages, keep tabs on what co-workers are doing, share files, and much more.

Vabotu

More than slack. More than Trello. FREE.
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Viber

Free and secure calls and messages to anyone, anywhere. Keep your conversations going no matter where you are.

WhatsApp

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

Wire

Private & Secure Messenger
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Zulip

Powerful open source group chat