This software tells you how far you are from a thunderstorm. It's easy to use. One click on the “Lighting” cloud when you see light followed by one click on the “Thunder” cloud when you hear it. The time between lightning and thunder as well as the distance of the storm are automatically calculated and displayed. Repeat these operations as often as you need to see thunder progress.

iOrage supports French, English, German, Spanish, Portuguese and Italian and it auto configure itself based on your iphone language setting.