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ScreenTranslateBob
Free

Free and open source under GPL-3.0.

 Freemium

Distributed through the Mac App Store; check the store for current pricing.

macOS macOS
  • Translates text selected in other apps
  • OCR captures text that cannot be selected
  • Translates selected text, screenshots and typed input
  • Over 30 translation services, usable side by side
  • Requires macOS 15 or later
  • Live subtitle translation is a beta feature
  • macOS only
  • Documentation and site are mainly in Chinese
Downloadable app Downloadable app
Open source Closed source
License: GPL-3.0 License not stated
Not stated if an account is needed Not stated if an account is needed
Works offline Not stated if it works offline

Checked October 8, 2026

Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.