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Speech & audio

RTranslator

A free Android app that translates spoken conversations in real time, working offline on your phone.

New this week

What it does

RTranslator is an Android app for talking with someone who speaks another language. In Conversation mode, two phones connect; each person speaks, and the other hears the translation in their own language, even through Bluetooth headphones.

WalkieTalkie mode works with just one phone for quick chats, such as asking for directions. There is also a plain text translator.

The AI models for speech recognition and translation run on the phone itself, so it works offline and, its maker says, collects no personal data. The models are a large download on first launch, and the README recommends a phone with at least 6GB of memory.

Who it's for

Travelers and anyone who needs to talk face to face across a language barrier.

Can I use it without coding?

Yes. Install the app file on an Android phone; it downloads its models on first launch. New to this? Start here.

Can I run it?

Cost
FreeNothing to pay or sign up for.
Runs on
Phone
Privacy
Runs on your own device: your data stays with you
API key
Not needed

Try it

  1. Download the latest app file from the project's GitHub releases page and install it on your Android phone.
  2. Open the app and let it download its translation and speech models.
  3. Pick Conversation, WalkieTalkie or text mode and start translating.
Official download page

Using Claude Code, Cursor or another AI coding assistant? Paste the prompt and it will walk you through the setup.New to this?

Before you install

  • Only download from the official GitHub page or the official download page above. Copies with similar names exist for many popular projects.
  • License (Apache-2.0): Permissive: free to use, change and share, including for business.
  • More on staying safe

Where people are talking about it