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FillMeUp! vs Drink Water!: catalog facts
FillMeUp!	Drink Water!
Free Free and open source under AGPL-3.0-only.	Free Free and open source under the MIT License.
Android	Android
One-tap water intake logging Customizable reminders that survive reboots	One-tap logging with configurable amounts Reminders adapt to a chosen time window and daily goal
Android app	Android 12 or newer required
Downloadable app	Downloadable app
Open source	Open source
License: AGPL-3.0-only	License: MIT
Not stated if an account is needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked October 8, 2026

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