Stay safe all night

Promilaj brings everything you need for responsible drinking into a single app. A clean, dark and readable interface — see your status at a glance.

Real-Time Estimate

Estimates your alcohol level (‰) in real time based on your height, weight, sex and drinks.

Each time you log a drink, the app works out how much pure alcohol it contains from the volume and the alcohol percentage, then combines that — via the Seidl (2000) formula — with your height, weight and biological sex. The result is not a fixed number: because your body keeps processing alcohol, the value updates continuously. The large gauge in the middle of the screen shows your current estimated level and whether the curve is still rising or already falling.

Legal Limit Timer

Shows an estimate of when you will drop below the legal driving limit.

Because alcohol leaves the body at a roughly constant rate, it is possible to estimate when your level will drop below a given threshold. The app takes that threshold from the legal limit you set and shows a countdown. This is information, not permission: it is a way of saying "definitely not before this time". Adding a new drink recalculates the countdown automatically.

Full Sober Time

Tracks the time left until the alcohol clears your body completely.

Dropping below the legal limit does not mean the alcohol has left your body. The app shows the two thresholds separately: the time you fall below the legal limit, and the time you reach zero. If you are driving the next morning, it is the second one that matters — drinks taken late at night can still be with you in the morning, and that is very widely underestimated.

Wide Drink List

Branded options for beer, wine and spirits with quick amount entry.

Logging a drink has to be fast, or nobody does it halfway through the evening. The app offers ready-made types and common brands for beer, wine and spirits, each with a typical volume and alcohol percentage already filled in. If you are drinking something not on the list, pick the closest type and adjust those two values by hand. Logging takes a few taps.

Guest Profiles

Track the estimated alcohol level of the people around you with separate profiles.

People rarely drink alone at a table. Guest profiles let you track the estimated level of everyone with you, each with their own height, weight and sex. The practical benefit is simple: at the end of the night, the question of who drives home rests on a shared picture rather than an argument.

Smart Reminders

Spend the night safer with water and safety reminders.

One of the biggest factors amplifying the effect of alcohol is dehydration. The app reminds you to drink water at regular intervals and issues safety warnings as your level rises. The goal is not to interrupt the evening but to save the next day — and to make you stop and notice how much you have actually had.

Driving Warning

A clear warning when you exceed the limit: "Don't drive, call a taxi."

When your estimated level exceeds the limit you set, the app does not soften the message. A clear warning appears on screen: do not drive, call a taxi. That warning never turns into "you are fine to drive now", because after drinking the only safe level is zero, and it is the app’s job to keep saying so.

12 Language Support

Turkish, English, German, Spanish, French, Italian, Russian, Swedish, Czech, Azerbaijani, Greek and Arabic.

Promilaj is available in twelve languages: Turkish, English, German, Spanish, French, Italian, Russian, Swedish, Czech, Azerbaijani, Greek and Arabic. For Arabic the whole interface runs right to left. The translations are not limited to menu labels; drink names and warning texts are localised too.