Storm! is a compact utility that estimates how far a lightning storm is by timing the interval between a visible flash and the thunder that follows. Storm! is designed for quick use outdoors or at home: tap Lightning when you see a strike and tap Thunder when you hear it, and the app calculates distance in meters based on the elapsed time. Storm! offers a clean, intuitive interface suitable for users of all levels and helps with safety awareness as well as a basic demonstration of sound and electromagnetic phenomena.

Key Features

The app provides an instant distance estimate derived from the time between flash and thunder, using a simple two-button recording method to mark the Lightning and Thunder moments with a single tap. Results are shown in meters now, and there are plans to add miles in a future update. The interface is designed for fast operation while outdoors, and the tool can be used as an educational demonstration of sound propagation and storm-related effects; localization is planned for later releases.

Advantages

Storm! helps increase safety awareness by giving a quick, approximate measure of how close a storm is. The workflow is very fast — just two taps to obtain an immediate result without any setup. The app also supports hands-on learning about basic meteorology and physics, and its lightweight, accessible design is intended to work well for non-technical users and families.

Disadvantages

Distance is currently shown only in meters, and measured accuracy depends on manual tapping and individual reaction time. There is no automatic lightning detection or GPS-enhanced calculation built in yet, so results should be treated as rough estimates rather than precise measurements.