TransOne - AI Translator

Translate, OCR & dictionary

Only for Mac

Free · In‑App Purchases

Mac

The latest AI translation, right in your menu bar. Translate with today's most capable large language models, plus built-in offline translation. TransOne brings AI translation to your menu bar. Instead of relying on a single ordinary engine, it lets you translate with today's most capable AI models — for results that are natural, context-aware, and true to meaning, not just words. Powered by AI you trust. Translate with today's leading large language models, alongside classic engines such as DeepL, Google, and Microsoft. Enable as many as you like, compare results side by side, and set the best one as your main translation with a tap. Care about privacy? Apple's built-in offline translation runs entirely on your Mac, no internet required. Translate the way you work: • Type or paste in the quick translation window • Select text in any app and translate with a shortcut • Select a screen region to translate the text inside it • Select a region and copy recognized text with OCR Smarter than a dictionary. For single words, AI and the built-in dictionary add phonetics, parts of speech, and real example sentences. For names and terms, TransOne shows a short encyclopedia summary. Natural read-aloud can speak any result. Built for privacy. TransOne runs fully sandboxed and collects no analytics. Your text is sent only to the AI service you configure, and your API keys are stored safely in the Keychain, never in plain text. Make it yours. Set your preferred languages, choose where the window appears, pick a color theme, and assign your own shortcuts. Every translation is saved to a searchable history, and you can star the ones you love. Try it free for 7 days. Unlock everything with a single one-time purchase. No subscription. Questions or feedback are always welcome at support@transone.one.

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This update brings a range of refinements, improves stability, and makes the whole app smoother and faster. Thanks for using TransOne. Questions or feedback are always welcome at support@transone.one.

Version 1.0.5

The developer, 晨阳 李, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • 晨阳 李
    Size
    • 3.6 MB
    Category
    • Productivity
    Compatibility
    Requires macOS 14.0 or later.
    • Mac
      Requires macOS 14.0 or later.
    Languages
    English and 4 more
    • English, Japanese, Korean, Simplified Chinese, Traditional Chinese
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © 2026 TransOne
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Some in-app purchases and subscriptions may be shareable with your family group when Family Sharing is enabled. Learn More