RTranslator
RTranslator is a free, open-source education app for Android. Open source real-time translation app for Android that runs locally. It has 10,576 GitHub stars and is released under the Apache-2.0 license, and you can install it from Google Play.
github.com/niedev/RTranslator (opens in a new tab)
Data as of from the GitHub API; description from the project's repository. Report an error
About RTranslator
RTranslator is an ( almost ) open-source, free, and offline real-time translation app for Android. 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.
Similar apps
More open-source education apps

AnkiDroid
ankidroid/Anki-Android
Memorize anything with AnkiDroid!
Active · last commit Oct 28, 2026
OfficialEducation & languageAndroidWikipedia for iOS
wikimedia/wikipedia-ios
The official Wikipedia iOS app.
Active · last commit Oct 27, 2026
OfficialEducation & languageiOS
Graded
NightDreamGames/Graded
Track and manage your school grades with ease.
Maintained · last commit Oct 2, 2026
Education & languageAndroidiOS
Wikipedia
wikimedia/apps-android-wikipedia
The official app for Wikipedia, the world’s largest source of information.
Active · last commit Oct 27, 2026
OfficialEducation & languageAndroidPoet Assistant
caarmen/poet-assistant
Dictionary and TTS tools for editing poems.
Active · last commit Oct 24, 2026
Education & languageAndroid
BOINC
BOINC/boinc
Use your device to advance scientific research.
Active · last commit Oct 25, 2026
Education & languageAndroid
Is RTranslator free and open source?
Yes. RTranslator's source code is public on GitHub under the Apache-2.0 license, which is OSI-approved or FSF-free.
How do I install RTranslator?
You can install RTranslator from Google Play; the links are on this page. Its GitHub repository also publishes releases (latest: 2.1.5).
Is RTranslator still maintained?
The repository's most recent commit was on Oct 25, 2026. appsgit only lists apps whose repository had a commit in the last six months.