Petals: Cannabis Use Tracker

Petals is a free and open source cannabis tracker that helps you understand your habit — and change it at your own pace. Whether you want to quit weed, take a tolerance break, cut down gradually, or simply know how much you actually use, Petals gives you the numbers. No account, no sign-up, and your data never leaves your phone. TRACK YOUR USE - Log every session: amount in grams, cost per gram, date and time - Record the consumption method: smoked, vaporized, edible or other - See the time since your last use, down to the second - Track how much you spend on weed, today, this week and overall - Add a use in one tap from the home screen widget UNDERSTAND YOUR PATTERNS - Statistics and graphs of your cannabis usage over time - Usage by hour of day and by day of week, so you can see when the urge really hits - Filter your history and spot the trends you would never notice from memory - Watch the real cost of the habit add up CUT DOWN AT YOUR OWN PACE - Time-gate your sessions: set a minimum interval between uses and let the timer hold you to it - Register pause periods for a tolerance break or a full stop - No streak shaming, no pressure: the app shows you the data, you set the pace WITHDRAWAL AND DRUG TESTS - Track withdrawal symptoms over time: irritability, anger, restlessness, sleep difficulty, anxiety, decreased appetite and discomfort - Estimated THC concentration after your last use - Estimates of when urine, blood, saliva and hair tests may come back clean, with the sources cited PRIVACY BY DESIGN - All of your data stays on your device - No account, no cloud, no analytics - Lock the app behind a personal PIN - Export and import everything as plain CSV files — your data belongs to you HARM REDUCTION - Built-in harm reduction information, because using less safely beats using blindly FREE AND OPEN SOURCE Petals is free and licensed under the AGPL-3.0. The full source code is public, contributions are welcome, and the app is translated by its own community of users.