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C25K vs ASICS Runkeeper: catalog facts
C25K	ASICS Runkeeper
Freemium Free on iOS and Android with optional paid features.	Freemium Free app with a paid tier for extra training features.
Android, iOS	Android, iOS
Simple eight-week plan aimed at beginners Audio coaching during workouts	Training plans that adapt to your schedule Audio-guided coached workouts
Focused only on reaching 5K Some features require payment	Closed source Some features require a paid tier
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	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 September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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