My Alcohol Tracker: KaterZerro

Sleep, HRV, Breathing Insights

Only for iPhone

Free · In‑App Purchases

iPhone

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 data stays on your iPhone and in Apple Health. Promised! TERMS OF USE (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

• Fix performance and display issues on older devices running iOS 18 — it’s time to update anyway ;-)

Version 0.12.2

The developer, Dirk Lingstadt, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer indicated that this app supports the following accessibility features. Learn More

    • Supported Features

      • Larger Text

      • Dark Interface

      • Sufficient Contrast

    Information

    Seller
    • Dirk Lingstadt
    Size
    • 14.2 MB
    Category
    • Health & Fitness
    Compatibility
    Requires iOS 18.0 or later.
    • iPhone
      Requires iOS 18.0 or later.
    Languages
    English and 3 more
    • English, German, Korean, Spanish
    Age Rating
    18+
    • 18+
    • Learn More
    • Frequent
      Alcohol, Tobacco, Drug Use or References

      Infrequent
      Medical Treatment information

      Contains
      Health or Wellness Topics
    In-App Purchases
    Yes
    Copyright
    • © 2026 Dirk Lingstädt
  • Developer Website
  • Privacy Policy

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