Thunder - Calculate how far away you are from the thunder

Thunder is an easy to use utility to calculate how far away you are from the thunder.

Its as easy as pie. When you see the lightning, just tap the big round button saying Flash. When the sounds reaches your ears, tap Thunder and this application will tell you how far away the lightning is. You can even share the result with your friends on your favorite social network. This app works also with fireworks or other loud sounds from a distance.