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SimpleHIIT vs Freeletics: catalog facts
SimpleHIIT	Freeletics
Free Free and open source under the GPL-3.0-or-later licence.	Freemium Free to download; the homepage does not list prices for coaching plans.
Android	Android, iOS
Animated demonstrations for each exercise Eight exercise categories to choose from	Plans adapt to fitness level and goals Large exercise library of 700+ movements
Android only Focused on HIIT rather than general workout logging	Pricing for coaching is not shown on the homepage Proprietary service tied to the vendor's app
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0-or-later	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
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 24, 2026

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