SimpleX Chat is described as 'Encrypted platform supporting private, identifier-free messaging, group conversations, file sharing, and audio/video calling, using a double-ratchet protocol' and is a very popular instant messenger in the social & communications category. There are more than 50 alternatives to SimpleX Chat for a variety of platforms, including Android, Windows, Mac, Linux and iPhone apps. The best SimpleX Chat alternative is Signal, which is both free and Open Source. Other great apps like SimpleX Chat are Telegram, Element, Tox and Jami.
Kik is way more than just messaging. It’s the easiest way to connect with your friends, stay in the loop, and explore – all through chat. No phone numbers, just pick a username.
A fork of Signal for Android with proprietary Google binary blobs removed. Uses OpenStreetMap for maps and a websocket server connection, instead of Google Maps and Firebase Cloud Messaging.
Ricochet Refresh is the new updated version of Ricochet, supported by Blueprint for Free Speech.. We are a non-government, not-for-profit organisation working to safeguard the freedom of expression for whistleblowers, activists, and everybody else, worldwide.
Gem Space - is news and blogs, chats and calls, business communities and friendly communication with like-minded people. We make sure that all our users feel secure: our chats are encrypted, calls are protected and communication spaces are private or public, as desired.
This simple Matrix client written in Python allows you to send and receive messages and files, verify other devices, and interact with your Matrix account or other Matrix users in many ways. You use it from the terminal (CLI) or integrate it into other simple Python programs.
Antox is an Android client for Tox. It aims to bring the full multimedia support Tox offers to your device, although it's still currently in heavy development.
0xchat is a secure chat app built on the Nostr protocol. It prioritizes security, featuring private key login, encrypted private chats and contacts, encrypted group chats.
Wamoca is a powerful tool designed to help businesses streamline their marketing efforts through WhatsApp. With Wamoca, you can create, manage, and analyze personalized campaigns that drive engagement and conversions.
Smoke Messenger is an open-source Instant Messenger that is known as the first mobile Messenger worlwide using the encryption algorithm McEliece. To be downloaded at F-Droid.org or Github.com. Smoke provides with its own Server-Software: SmokeStack-Echo-Server.
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