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C2K: Couch to 5K & 10K vs C25K: catalog facts
C2K: Couch to 5K & 10K	C25K
Best for: Runners following a structured plan from beginner training through 10K	Best for: Beginners who want to run their first 5K
Free Free and open source under the GPL-3.0 license.	Free + paid options Free on iOS and Android with optional paid features.
Android	Android, iOS
Includes several plans from beginner programs to 10K training Provides voice prompts and optional vibration cues All 4 strengths for C2K: Couch to 5K & 10K Includes several plans from beginner programs to 10K training Provides voice prompts and optional vibration cues Offers optional GPS tracking and treadmill mode Works without internet access	Simple eight-week plan aimed at beginners Audio coaching during workouts All 3 strengths for C25K Simple eight-week plan aimed at beginners Audio coaching during workouts GPS tracking and playlists
Android only Voice prompts require an installed text-to-speech engine	Focused only on reaching 5K Some features require payment
Downloadable app	Downloadable app
Open source	Not open source
License: GPL-3.0	License not stated
No account needed	Not stated if an account is needed
Offline features available	Not stated if it works offline
Official website Full listing and sources Sources for C2K: Couch to 5K & 10K f-droid.org/packages/com.hackerapps.c2k Catalog checked October 8, 2026	Official website Full listing and sources Sources for C25K c25kfree.com play.google.com/store/apps/details apps.apple.com/us/app/c25k-5k-running-coach-map/id485971733 Catalog checked September 23, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.