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Constanza - Good habits vs Loop Habit Tracker: catalog facts
Constanza - Good habits	Loop Habit Tracker
Free Free and open source under the MIT license.	Free Free and open source.
Android	Android
Six schedule types and multiple reminder times Answer reminders from notifications	Open source with a large contributor community Focused on long-term habit building
Android only Dark interface with no light mode	Android only Focused on habits rather than broader health tracking
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked October 8, 2026	Official website Full listing and sources Checked September 24, 2026

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