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Mission vs Constanza - Good habits: catalog facts
Mission	Constanza - Good habits
Free Free and open source under the Apache-2.0 license.	Free Free and open source under the MIT license.
Android	Android
Supports schedules of up to 999 days Can send daily notifications at a chosen time	Six schedule types and multiple reminder times Answer reminders from notifications
Android only Notifications may need the app reopened after a device reboot on Xiaomi phones	Android only Dark interface with no light mode
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License: MIT
Not stated if an account is needed	No account needed
Not stated if it 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.