Алкометр is a virtual alcohol tester application designed for Android users, aimed at calculating the concentration of alcohol in blood and breath after consuming alcoholic beverages. Utilizing a refined formula based on the work of Swedish chemist Erik Widmark, the app provides users with an estimation of blood alcohol concentration (BAC) by considering factors such as body weight, height, and gender. It also accounts for the fullness of the stomach and the alcohol concentration in beverages consumed, ensuring a more accurate result.

The application offers various calculations, including the equivalent amount of pure alcohol consumed, BAC levels, breath alcohol content, and estimates for how long it will take for the alcohol to be eliminated from the body. Users can also find out the equivalent doses of alcohol and the time needed to reach a legal limit of 0.16 mg/l. However, it's important to note that the app's calculations are only approximations and should not replace professional breathalyzer devices, as individual physiological factors can significantly affect actual alcohol levels.