【實用工具app】Thunder - Calculate how far away you are from the thunder|最夯免費app

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

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