Alco+ helps you make a safer decision after drinking: log what you drank, and the app estimates your blood alcohol content (BAC) and how long until it drops below your chosen legal limit — with a safety buffer on top.

WHAT IT DOES
• Log drinks in seconds — beer, wine, sparkling wine, spirits, cocktails, or custom drinks with your own volume and alcohol percentage
• Set the alcohol content in 0.1% steps, with a sensible range for each drink type
• See your estimated BAC (‰) on a clear gauge, updated live
• Get an estimated "safe to drive" time and a live countdown in your notifications, plus a second estimate for slower metabolism so you can see how wide the uncertainty really is
• Set your target limit — pick your country from a built-in list of legal BAC limits, or set a stricter personal limit
• Add a safety buffer (30 minutes by default) so the estimate errs on the side of caution
• Review your month or your year: total drinks, a breakdown by drink type, pure alcohol in grams, calories and money spent — or open a single day for the details
• Understand the numbers: a built-in page explains what a standard serving actually contains, and why logging as you go beats entering everything at 3 a.m.
• Call a taxi straight from the app when it is not safe to drive — Uber, Bolt, Lyft, a local taxi search, or your saved taxi number
• Export and import your data as a file when you switch phones

PRIVACY FIRST — YOUR DATA STAYS ON YOUR PHONE
Alco+ needs no account and no registration. Your profile and your drink log are stored only on your device and are never uploaded anywhere. The app only goes online for two things: fetching currency exchange rates, and — when you open the taxi screen — looking up your current address so you can pass it to a taxi. Your location is used only for that moment and is never stored by us. There are no ads and no in-app purchases.

AVAILABLE IN 13 LANGUAGES
English, German, Hungarian, Czech, Slovak, Polish, Swedish, Turkish, Italian, Spanish, Portuguese, French and Japanese.

HOW THE ESTIMATE WORKS
The calculation is based on the Widmark formula, refined with Watson's body-water model, using your age, gender, weight and height. Alcohol is added to your system as you log each drink and removed at a steady rate between drinks — the model used in forensic toxicology. Absorption is deliberately treated as immediate, so the app overestimates rather than underestimates your level early on. It is a mathematical approximation, not a medical measurement.

IMPORTANT — PLEASE READ
Alco+ is NOT a breathalyzer and NOT a medical device. Your real blood alcohol level depends on many factors the app cannot know (health, medication, food, fatigue, and more), and it can differ significantly from the estimate. If you have any doubt about whether you are fit to drive, do not drive — even if the app shows 0.00 ‰. The final decision and its consequences are always yours. Legal limits vary by country and can change; always follow the laws that apply to you.

Alco+ is developed by Upland Factory. If you find the app useful, you can support its development with a coffee — it stays free either way.