RTranslator
World's first open-source simultaneous translation app.
RTranslator launched on November 16, 2020 with 79 votes, #517 of 3,461 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 5 years on.
What it does
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.
Open source real-time translation app for Android that runs locally - niedev/RTranslator
Does a similar job
all alternatives →
I made an open source and local translation app2024 · github.com · ▲236A few years ago, right after high school, I decided to try to make a simultaneous translation app for Android as a side project, it took longer than expected (about 2 years) and I had to make a lot of compromises (I had to use Google's API and therefore make users use a developer key because at the time there were no free solutions for speech recognition and translation that had good quality). At the end of university, I decided to pick it up again and finally, using OpenAi's Whisper for speech recognition and Meta's NLLB for translation (with both running locally on the phone), I managed to…

Mate Translate2017 · matetranslate.com · ▲164Ultimate translation app for Mac, iOS, Chrome and many more
WT2 in ear translator2018 · indiegogo.com · ▲70In-ear translator for face to face bilingual conversations 🗣

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