Cost / License
- Free
- Open Source
Application type
Platforms
- Android



Apps similar to Selene include Signal, which is free and open source. Other options are Matrix, Stoat Chat, bitchat and Tox. There's no shortage of Instant Messengers like Selene, with more than 25 alternatives for Linux, Android, Mac, Windows and iPhone.



This project won the first prize 🥇 at Telegram Lightweight Client Contest and now is an official Telegram client available to anyone at web.telegram.org/a.

Tinfoil Chat (TFC) is a FOSS+FHD peer-to-peer messaging system that relies on high assurance hardware architecture to protect users from passive collection, MITM attacks and most importantly, remote key exfiltration.
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.
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.



ChatAround allows users to chat offline - no internet connection needed. It uses Bluetooth / WiFi to create a local connection. There is no account registration needed.

Retro AIM Server is an instant messaging server that revives AOL Instant Messenger (and ICQ!) clients from the 2000s.

With Talkie (ex. Wi-Fi Talkie) you can organize communication between devices at distances of Wi-Fi signal without using an Internet connection or a cellular network.



