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Libellus Potionis vs Addiction Tracker: catalog facts
Libellus Potionis	Addiction Tracker
Free Free and open source under GPL-3.0-or-later.	Free Free and open source under the MIT license.
Android, iOS	Windows, macOS, Linux, Android
Tracks daily and rolling weekly limits Estimates blood alcohol concentration	Records use, mood, triggers and cost Shows usage trends and financial impact
Available for Android 11 or newer and iOS 17 or newer. Blood alcohol concentration is estimated using the Widmark formula.	A self-tracking tool rather than a source of professional care
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: MIT
Not stated if an account is 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.