Minsk region traffic police rated the usefulness of smart apps for drivers, including online maps and navigators. The rating of popular apps was published on the traffic police's website. According to traffic officers, the use of smart devices allows drivers not only to not get lost on an unfamiliar road, but also to find the nearest gas station, service station, as well as a place to relax, which is especially important during long trips. The rating also includes a mobile application that turns a smartphone into a hand warmer. This smart invention will come to rescue if one's car breaks down in cold weather.