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FastTrackYazio
Free

Free and open source under the MIT licence, with no ads or in-app purchases.

 Freemium

Free to use, with a paid subscription for additional features.

Android Android, iOS, Web
  • No ads, purchases or permissions
  • Shows what the body is doing at each stage of a fast
  • Food logging by photo, barcode or manual entry
  • Built-in fasting timers with 16:8, 5:2 and 6:1 plans
  • Android only
  • Not a medical app
  • Closed-source service
  • AI photo estimates may need manual correction
Downloadable app Downloadable app, Web application
Open source Closed source
License: MIT License not stated
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked October 2, 2026

Checked September 23, 2026

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