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Chrono vs Smart EggTimer: catalog facts
Chrono	Smart EggTimer
Free Free and open source under the GPL 3.0 or later.	Free Free and open source under the GPL-3.0.
Android	Android
Flexible alarm schedules, including date ranges Wake-up tasks such as math problems before dismissing	Adjusts cooking time for altitude or air pressure Considers egg size, start temperature and desired consistency
Developers describe it as still in development No code changes since January 2025	Single-purpose app for boiling eggs Android only
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: GPL-3.0-only
No account needed	No account needed
Not stated if it works offline	Not stated if it 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.