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OpenTracks vs Zombies, Run!: catalog facts
OpenTracks	Zombies, Run!
Free Free and open source.	Freemium Free to start, with a paid Pro mode and gift codes for purchase.
Android	Android, iOS
Records GPS tracks for runs, rides and hikes Supports Bluetooth Low Energy heart rate sensors	Story missions make runs less repetitive Works at any pace, including walking
Android only No hosted sync or social features	Custom workouts need the paid Pro mode Less suited to detailed training analysis
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
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.