See what this alcohol tracker can do

Track your drinks, spot patterns and explore Hangover Insights with the Apple Health data you choose to share.

Put the next day in context

KaterZerro comparison of sleep and recovery after different drink ranges

Find patterns in your drinking

KaterZerro trend reports for drinking by season and day

Drinking after midnight

KaterZerro showing drinks grouped from 07:00 to 07:00 across one night

Set limits that fit your life

KaterZerro personal alcohol-limit settings with a local notification

Your Health data stays yours

Apple Health permission settings and KaterZerro privacy controls

Start free, go further with PRO

KaterZerro free drink tracking alongside PRO long-term health insights

Works with other trackers

KaterZerro showing an external Apple Health alcohol entry from another tracker

Log drinks with Siri and Shortcuts

Siri Shortcuts for recording a dry day, favourite drink and recent drink in KaterZerro

Widget and notifications

KaterZerro Home Screen widget, limit-notification setting and periodic-summary notification

Made for the Apple ecosystem

KaterZerro widget setup and Apple Health sharing shown on iPhone

Dark mode for late nights

KaterZerro drink logging and trends shown in dark mode

German, English, Korean & more

KaterZerro drink logging shown in German and Korean