Compare software

Constanza - Good habits vs Mission: catalog facts
Constanza - Good habits	Mission
Free Free and open source under the MIT license.	Free Free and open source under the Apache-2.0 license.
Android	Android
Six schedule types and multiple reminder times Answer reminders from notifications	Supports schedules of up to 999 days Can send daily notifications at a chosen time
Android only Dark interface with no light mode	Android only Notifications may need the app reopened after a device reboot on Xiaomi phones
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: Apache-2.0
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 October 8, 2026

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