An offline translator that actually works with no signal

Download the models you need while connected. Then voice and photo translation run on your phone with airplane mode on. Test your languages before traveling; activation and purchase verification need a connection.

On a plane
After setup, use voice translation with airplane mode on. Install and activate before your trip.
Abroad with no data
Land in a new country before your SIM works and still talk to the taxi driver or read the menu.
Underground / rural / at sea
Subways, mountains, ships, remote villages — anywhere a signal drops, it keeps working.
When you just want privacy
Translation content is processed on your phone after setup.

What works after setup

  • 🎙️ Voice-to-voice — speak and hear the translation back, no connection required.
  • 📷 Picture translation — photograph a sign or menu and translate recognized text offline. (more on camera / OCR)
  • 🌐 40+ languages downloaded to the device. (see the full list)
  • 🔒 No translation account or app usage telemetry. (why that matters)

Common questions

Does Rasterdeck Translator work in airplane mode?

Yes, after downloading the needed models. Check voice and photo translation on your phone before traveling.

When do I need internet?

Use a connection to download models, activate an unlock code and verify a purchase. Translation content is processed on the phone afterward.

How many languages work offline?

Typed text covers 42 languages; voice and photo cover 40. Pro voice cloning covers 28.

Is it free?

Typed text is free. Voice has a free trial; a phone-bound one-time unlock starts at $2.99 for unlimited voice use.

Free trial, then a one-time purchase — no subscription. Standard $2.99, OCR $9.99, Pro $19.99, or Everything $24.99.

Get it on Google PlayCompare vs Google Translate