A caffeine journal, not a biological measurement

BrewMeter - Caffeine Tracker

Fast Caffeine & Sleep Log

BrewMeter - Caffeine Tracker — Product preview 2

BrewMeter - Caffeine Tracker — Product preview 3

Product preview · BrewMeter 1.4.0

New: BrewMeter Pro — sleep correlation, complete history, tolerance trends, CSV export. Annual plan with 7-day free trial. Everything you already use stays free.

Configurable estimate
Optional private iCloud sync
No ads or tracking

BrewMeter - Caffeine Tracker

Configurable estimate

SEE YOUR CURRENT CAFFEINE: View an estimated caffeine curve based on what you log and your selected half-life. Check when the estimate falls below your caffeine threshold and decide whether another drink fits your plans.
LOG YOUR WAY: Choose from common drinks, save your own beverages, and reuse favorites. Add an entry in the app or use an interactive widget, Siri, or a Shortcut when speed matters.
PLAN WITH CONTEXT: Use the what-if simulator before adding a drink. With optional HealthKit permission, BrewMeter can compare recent sleep timing with your cutoff and suggest an adjustment. Nothing changes until you confirm it.

Human support

A question or something to report?

Send a message through the private support form. No developer email address is published.