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