KaterZerro – Drink Tracker

You know your drinking habits. But do you know what they’re doing to you? Find out with your own data. KaterZerro compares days with and without alcohol and shows you the difference in sleep, heart rate, and recovery using your Apple Health data. Everyone knows Dry January and Sober October. But this year could have more than two alcohol-free months. Start your own challenge anytime, or simply keep an eye on how much you drink. DRINK MORE MINDFULLY (free) • Log drinks in seconds with the app, Siri, or Shortcuts • Your usual drink? One tap and done. • A 7am-to-7am tracking day, because your night might not end at midnight • Explore your last 30 days by drink type, weekday, and more • Keep your progress in sight with the Home Screen widget • Live Activity to keep your drinking in view GO DEEPER WITH «PRO» When does that next drink start to make a difference? • Compare 0+, 2, 4, 6, 8, and 10+ drinks with your alcohol-free days • See the difference in sleep, heart rate, and recovery • Unlock long-term trends, seasonal patterns, and your full history • Choose a subscription or one-time purchase YOUR DRINKS. YOUR DATA. No account. No backend. No analytics. No ads. No gamification. No BAC estimates. No diagnosis. Your health data stays in Apple Health. Core analysis runs on your iPhone; optional AI-powered features may use Apple Intelligence on-device or through Private Cloud Compute. You can turn off Apple Intelligence completely in iOS Settings. TERMS OF USE (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/