Substreamer: Live Translator

Live Screen & Speech Translato

Only for Mac

$8.99

Mac

Break language barriers on your desktop! Translate any live audio or screen text instantly with customizable floating subtitles. Try Substreamer today! Break through language barriers on your computer! Do you love watching foreign TV channels, movies, or online videos, but struggle with missing subtitles? Or do you join virtual meetings in another language? Substreamer is the ultimate real-time translation tool that translates everything you see or hear live, displaying subtitles in a sleek floating overlay window right on your screen. Substreamer digitally reads or listens alongside you, instantly projecting accurate translations. Perfect for learning a new language or enjoying global content effortlessly! TWO POWERFUL TRANSLATION MODES: - Visual Mode (Screen OCR): Are foreign subtitles already on screen? Place Substreamer’s smart, transparent frame over the video text. The app rapidly reads the original text and translates it live. Plus, use the built-in Color Filter to target specific subtitle colors (like yellow or cyan) to isolate text from complex backgrounds! - Audio Mode (Speech-to-Text): No subtitles on screen? No problem! Let the app listen to your device audio. Substreamer captures spoken dialogue and converts it into real-time subtitles in your chosen language. KEY FEATURES: - Flexible Engine Options: Use fast local translation engines completely free and offline, or connect your preferred AI API key for advanced contextual translations. - Smart Floating Window: Subtitles appear in a beautifully designed overlay that stays on top of other apps. Position it right over original captions for a seamless viewing experience. - Custom Text Grouping: Control sentence chunking (e.g., group by 4 or 6 words) to read comfortably at your own pace, just like broadcast TV captions. - Privacy First: Local engine mode keeps all data on your device without sending text off your computer. - Multilingual Support: Supports dozens of source and target languages, with an app interface that adapts to your preferred language. PERFECT FOR: - Foreign Streams & Shows: Enjoy international channels without needing fluent fluency. - Language Practice: Learn faster by comparing live speech or text directly with translated captions. - Web Videos & Tutorials: Translate uncaptioned media on the fly. - Virtual Meetings: Follow international video conference calls effortlessly in your native language. Watch without limits. Download Substreamer today and bring global content to your desktop!

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The developer, Marcel Limbeek, 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
    Marcel Limbeek
    Size
    2.5 MB
    Category
    Entertainment
    Compatibility
    Requires macOS 15.0 or later.
    • Mac
      Requires macOS 15.0 or later.
    Languages
    English and 4 more
    • English, Dutch, French, German, Spanish
    Age Rating
    4+
    Copyright
    © 2026 Marcel Limbeek
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.

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