Content rating
Everyone
10+
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Content rating
Everyone
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About this app

This disaster prevention support app visualizes the estimated location and danger level of lightning strikes in real time by utilizing the time difference between the flash and sound of lightning.

Using it is extremely simple.
The user selects the direction of the lightning using the on-screen compass,
tap a button the moment they "see the lightning," and then tap again the moment they "hear the sound." The app automatically calculates the accurate distance based on the speed of sound.

The danger level is determined in three stages—"Dangerous," "Caution," and "Safe"—based on the distance from the current location. The map displays icons indicating the lightning strike location, along with the surrounding impact area and margin of error. It also features GPS location tracking, and its intuitive and easy-to-use UI makes it user-friendly for everyone.

This is a project by a 3rd-year student in 2026.

Creator:
Daichi Toriyama
This app measures the distance to a lightning strike based on the time difference between the flash and sound, and visualizes the estimated location and level of danger on a map based on the selected direction.
Updated on
Jun 5, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
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  • No data collected
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  • Committed to follow the Play Families Policy

What’s new

初回リリース