RTranslator
Open-source real-time translation app for Android running locally
- Status
- Generally available
- Last checked
- Checked · Oct 12, 2026
- License
- Open source
- Pricing
- Free tier · from $0
What it is
RTranslator is an open-source application that provides real-time translation capabilities directly on Android devices without relying on internet connectivity, making it ideal for offline use in various languages.
RTranslator stands out as an open-source solution providing real-time offline translation capabilities directly on Android devices, making it ideal for scenarios where internet connectivity is unreliable or unavailable.
When it fits — and when it doesn’t
A good fit for
Users who need a reliable offline translation tool on Android devices
Developers looking to integrate real-time translation into their apps without internet dependency
Educators and students requiring quick translations in areas with poor connectivity
Look elsewhere if
Projects that require cloud-based, always-on services for translation
Users who need support for a wider range of languages beyond the currently supported ones
Known weaknesses
Each one links to the public issue, changelog or docs page it came from, where we have one.
- 01
Limited language support compared to online translation services
RTranslator supports fewer languages offline due to the need for preloaded data.
- 02
Performance degradation on lower-end Android devices
Translation processes can be resource-intensive, leading to slower performance or battery drain on less powerful hardware.
- 03
Outdated translation models may lead to inaccurate translations
Offline nature means that translation algorithms and dictionaries are not frequently updated, potentially resulting in outdated or incorrect translations.
- 04
Complex setup for integrating with existing Android projects
Integration requires manual configuration of the project's build.gradle files and additional dependencies, which can be error-prone.
What it does well
Real-time translation capabilities
Offline functionality
Support for multiple languages
Open-source and customizable
Pricing
- Free tier
- YesOpen source — free to use
- Paid from
- $0
- Model
- Flat rate
- Enterprise plan
- No
Pricing not independently confirmed — check the vendor’s page.
Performance benchmarks
How Fast Is It?
Set up RTranslator
Setup steps, common gotchas and what to check after 30 days.
Get the badge
A small badge for RTranslator’s README or site: its name, “Tracked on AI Navigator”, and the availability status and check month from this page. It updates as the catalog does.
Markdown
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