iPhone Screenshots


Determine the distance of a thunderstorm. When a lightning flashes then press "Start" and "Stop" when you hear the thunder. Due to the sonic speed and time measuring the distance will be calculated.

More features:
- Animation at flash (Start)
- Thundersound at Stop

- iPhone, iPod Touch, iPad
- OS 8.x or higher

What’s New

Version 1.4

- adapted for iPhone 4,5,6,7,8,10,11, iOS 8,9,10,11,12,13

App Privacy

The developer, Pocketkai, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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