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Ewoc vs TrainerDay: catalog facts
Ewoc	TrainerDay
Best for: Indoor cyclists who want structured trainer workouts on Android without a subscription	Best for: Cyclists who want structured interval training on a budget
Free Free and open source under the GPL-3.0 licence.	Free + paid options Free tier available; subscription is $4.99 a month or $3.33 a month billed annually.
Android	Android, iOS
Works with FTMS-compatible smart trainers over Bluetooth Imports ZWO workout files All 4 strengths for Ewoc Works with FTMS-compatible smart trainers over Bluetooth Imports ZWO workout files Bluetooth heart-rate sensor support Workouts stored as local files	More than 40,000 structured workouts Flexible plan building for indoor and outdoor riding All 4 strengths for TrainerDay More than 40,000 structured workouts Flexible plan building for indoor and outdoor riding Low subscription price Useful free tier without a credit card
Very new project with few users No tagged releases on GitHub yet	Full features require a subscription Focused on cycling rather than general fitness
Downloadable app	Downloadable app
Open source	Not open 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 Sources for Ewoc github.com/Ewoc2026/ewoc f-droid.org/packages/io.github.ewoc2026.ewoc Catalog checked October 2, 2026	Official website Full listing and sources Sources for TrainerDay trainerday.com Catalog checked September 24, 2026

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