Caffeine Tracker

Choose a preset drink or enter a custom name and caffeine amount. See estimated remaining caffeine, a 12-hour projection, an estimate at your chosen bedtime, and today’s recorded total. Review a seven-day chart and delete individual entries. Adjust the model half-life, daily comparison amount, bedtime and comparison threshold. Settings are available from the gear on Home, Log and History. Choose from 17 interface languages or follow your device language.

These are personal comparison settings, not a safe dose or sleep guarantee.

Rough estimates based on average caffeine content and a simple half-life model. Individual metabolism varies widely. This is not a medical device or medical advice. Ask a healthcare professional about caffeine and your health.

Intake and comparison settings stay in local app storage. Android may include them in an optional OS backup. Delete entries locally from History; Android app storage controls can erase all local data. Google advertising may process device and ad interaction data under your consent choices. Health records are never automatically sent to advertising or feedback services.

Tally stores your message, optional reply email and app/version/build, platform, model, OS, UI language and entry point. Intake, history and settings are not sent.