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Flexify vs Simple. : Fitness Simplified.: catalog facts
Flexify	Simple. : Fitness Simplified.
Free Free and open source.	Free Free and open source under the MIT licence.
Android	Android
Works fully offline Progress graphs and rest timers	Custom workouts with exercises, sets and reps Workout scheduling by day
No generated training plans or coaching Small project maintained mainly by one developer	Focused on logging; no guided programs Small single-developer project
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: MIT
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 2, 2026

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