With this application you can measure the distance between you and the point of impact of the lightning and visualize on a map all possible locations of this point of impact. Operating instructions: Touch the screen a first time when you see the flash of lightning. Touch a second time when you hear the thunder. >The distance from you to the impact point will be displayed and you will have the possibility to choose to view the result on a map, view the measurements history or make a new measurement. On the map a blue circle indicate where the thunderbolt has fallen. How does it work? This application uses the difference of speed between light and sound, in fact the light of the lightning reaches you almost instantaneously while the sound takes several seconds to run through the distance between you and the place where the thunderbolt has fallen. By measuring this duration, this applications calculates the distance. This application can be store on SD card. Activation of the GPS is not necessary but with it you can be located more precisely rather than by means of cellular networks. A paid version without ads is available. Available languages: English-French-Spanish-RussianSend me an e-mail for an other language.