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The original Android Lightning distance calculator. Press the top button when you see the flash, press the bottom one when you hear the thunder. The distance is shown in Miles and KM, up to 20 Miles. If you like, you can also start and stop the timer with the Camera button, trackball, or D-Pad.

Fun and educational, it's also useful for outdoor activities where lightning may be a hazard (handy for lifeguards, referees, playground helpers, etc.).

Not recommended for artillery spotting...


Suggestions welcome - please email me.

This App will never contain annoying ads - ever!


Lightning uses the following permissions ONLY:



Modify/delete SD card contents. Not that it really *does* anything with the SD card...

System tools

Prevent phone from sleeping


Phone calls

Read phone state and identity

The last one is a result of building for Android 1.6 compatibility - Lightning does *NOT* actually access the phone information in any way.


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