RTranslator is an (almost) open-source, free, and offline real-time translation app for Android. The app uses OpenAI's Whisper for speech recognition and Meta's NLLB for translation, it has 3 modes: a classic text translation mode; conversation mode: where you connect to one or more devices that have RTranslator to have a real-time translated conversation with other people (works best with Bluetooth headphones); walkieTalkie mode: where you can translate a conversation with a single device.
Connect to someone who has the app, connect Bluetooth headphones, put the phone in your pocket and you can have a conversation as if the other person spoke your language.
You can also use it like any other translation app, offline and with total privacy.
RTranslator
Connect to someone who has the app, connect Bluetooth headphones, put the phone in your pocket and you can have a conversation as if the other person spoke your language.
To use this app you have to configure it, please follow the tutorial in the GitHub page.