Delta Chat is described as 'Uses email as a decentralized chat platform with modern interface, open source code, no central servers, strong privacy controls, and no account signup' and is a popular instant messenger in the social & communications category. There are more than 50 alternatives to Delta Chat for a variety of platforms, including Android, iPhone, Linux, Windows and Mac apps. The best Delta Chat alternative is Signal, which is both free and Open Source. Other great apps like Delta Chat are Telegram, Element, Tox and SimpleX Chat.
Decentralized messaging client for Android, Linux and macOS allowing you to communicate with people or LXMF-compatible systems over Reticulum networks using LoRa, Packet Radio, WiFi, I2P, or any other medium Reticulum supports.
Germany
EU
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.
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.
DUST gives you control over your digital life. We believe online life is real life, so only you should control what is known about you. Our users are protected—free from worry of prying eyes, data mining, sketchy hackers, and the paranoia that your words could come back to haunt...
United States
RelayBeam is a messaging platform with an innovative multi-port feature for enhanced communication.
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.
Graph Messenger is an UNOFFICIAL messaging app that uses Telegram's API and add new features like real multi account system, download manager and time line.
signal-cli is a commandline interface for the Signal messenger. It supports registering, verifying, sending and receiving messages. signal-cli uses a patched libsignal-service-java, extracted from the Signal-Android source code.
Free online chat rooms for everyone! Come meet people (digitally) the old fashion way and chat about anything!
Video AI-Based Calls | AnySend AI-Based Instant Multimedia Messenger - Securely Send Anything You Want, Anytime You Want, in Anyway Your Want.
France
United Kingdom