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Simple. : Fitness Simplified.Strong
Free

Free and open source under the MIT licence.

 Freemium

Free accounts, with a paid Strong PRO tier for progress tracking.

Android Android, iOS
  • Custom workouts with exercises, sets and reps
  • Workout scheduling by day
  • Simple, fast logging of sets and workouts
  • Available on iOS and Android
  • Focused on logging; no guided programs
  • Small single-developer project
  • Detailed progress charts require Strong PRO
  • Closed source
Downloadable app Downloadable app
Open source Closed source
License: MIT 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 2, 2026

Checked September 23, 2026

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