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Hidroly vs WaterMinder: catalog facts
Hidroly	WaterMinder
Free Free and open source under the GPL 3.0 license.	Freemium Free to download on iOS and Android.
Android	Android, iOS
Simple water intake tracking with reminders Clean Material 3 design	One-tap drink logging Reminders spread through the day
In maintenance mode, with few new features expected Android only	Covers only water intake, not wider nutrition No desktop or web version
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0-only	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 October 1, 2026

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