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Chrono vs Break.Down.Timer: catalog facts
Chrono	Break.Down.Timer
Free Free and open source under the GPL 3.0 or later.	Free Free and open source under the MIT licence.
Android	Android
Flexible alarm schedules, including date ranges Wake-up tasks such as math problems before dismissing	Notifications at chosen points within one timer Simple setup for staged activities
Developers describe it as still in development No code changes since January 2025	Android only A single-purpose timer rather than a full planner
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: MIT
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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