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Smoking Tracker vs To Don't: catalog facts
Smoking Tracker	To Don't
Free Free and open source under the GPL-3.0.	Free Free and open source under the Apache 2.0 licence.
Android	Android
Weekly, monthly and yearly graphs of smoking habits Cost and time calculator	Quick entry of habits from the home screen Daily reset with a log of success rates over time
Android only Every cigarette has to be logged by hand	Android only Narrow focus on avoiding habits rather than general tasks
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	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 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.