Caffeine Tracker for iOS
Need help with BrewMeter? We're here for you.
For support, use the contact form below or reach out via the App Store.
How does BrewMeter calculate my caffeine level?
BrewMeter uses an exponential decay model based on your personalized half-life. The default is 5 hours, but you can customize it based on your metabolism profile.
Is my data private?
Yes. All your data is stored locally on your device and in your personal iCloud account. We never collect, store, or have access to your data.
How do I sync with Apple Health?
Go to Settings in the app and tap "Request Access" in the Apple Health section. BrewMeter can write caffeine entries and read sleep data for correlation insights.
Can I customize my caffeine half-life?
Yes. Go to Settings > Metabolism, take the questionnaire, or manually adjust the half-life slider (3.0h to 7.0h).