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Liftosaur vs Flexify: catalog facts
Liftosaur	Flexify
Free Described as a free workout tracker and planner.	Free Free and open source.
Android, iOS, Web	Android
Programs defined in plain text with scriptable progression Over 50 built-in routines like GZCLP and 5/3/1	Works fully offline Progress graphs and rest timers
Writing custom programs means learning Liftoscript Aimed at weightlifting rather than general fitness	No generated training plans or coaching Small project maintained mainly by one developer
Downloadable app, Web application	Downloadable app
Open source	Open source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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