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About
Track your alcohol and caffeine intake to understand their effects on your body. Get estimates for blood-alcohol levels, caffeine impact, and personalized hydration guidance. Features include daily totals, drink mixing, and social sharing for friends.
✓Blood-alcohol level estimation
✓Caffeine level tracking
✓Hydration reminders
✓Daily intake totals (alcohol, caffeine, sugar, calories, cost)
✓Custom drink mixing
✓Social sharing with friends
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What's New in Permille
2.0
September 28, 2026
New in 2.0 • Friends round: go out together with a code – keep an eye on the others' drinks, estimated blood alcohol and water • “Look after …”: a heads-up when someone is estimated to have drunk a lot or quickly • “I'm home”, several rounds at once and a recap after the trip • Continuous blood alcohol and caffeine curve, calendar in History • Choose the amount with a long press, your own Mixer quick picks • Log from the Action button, Lock Screen and Control Center (iOS 18 and later)
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FAQ
What is Permille?
Permille is a health and fitness app designed to track your alcohol and caffeine intake. It provides estimates of your blood-alcohol level and caffeine impact, along with hydration guidance and daily consumption totals.
Does Permille have ads?
No, Permille is ad-free. The app's privacy policy states that it does not contain advertisements, allowing for an uninterrupted user experience.
Is Permille free to use?
Yes, Permille is available for free. There are no in-app purchases or subscription fees required to access its features.
What devices does Permille support?
Permille is currently supported on iPhones. The app is designed for iOS devices and can be synced with Apple Health.
How accurate are Permille's blood-alcohol estimates?
Permille uses the Widmark formula for blood-alcohol estimation. While it provides a helpful traffic-light status and estimated time back to 0.0 ‰, these are rough estimates and not a measuring device. Always use at your own risk and never drive based on these estimates.
Can I track caffeine intake with Permille?
Yes, Permille allows you to track your caffeine intake. It calculates how much caffeine is in your system based on its half-life and estimates when it will fully wear off, helping you avoid exceeding the 400 mg daily guideline.
Does Permille offer social features?
Yes, Permille includes a 'Friends round' feature. You can share your drinks, estimated blood alcohol, and water status with friends using a six-character code via iCloud.
What is the age rating for Permille?
Permille has an age rating of 17+. It is intended for adults only, as excessive alcohol consumption can harm your health.
