How much alcohol do you actually drink? And what does it do to your body?
KaterZerro helps you find out. Track your drinks, compare days with and without alcohol, and discover how drinking affects your sleep, heart rate, HRV, and recovery using your own Apple Health data.
Spot drinking patterns, count alcohol-free days, start your own sober challenges, and share your achievements.
Privacy first. No account, no tracking, no ads. Your health data stays on your iPhone.
KaterZerro – Alcohol Tracker & InsightsSee how alcohol affects you through your own health dataOct 2026