Storm! is a compact, easy-to-use lightning distance calculator that estimates how far a thunderstorm is by measuring the time between a flash and thunder. Tap Lightning when you see a bolt and tap Thunder when you hear the clap; the app converts the elapsed seconds into a distance in meters so you can decide whether to seek shelter. Designed for hikers, outdoor workers, and anyone monitoring local weather, Storm! provides a quick safety metric and explains basic physics behind sound and light during storms.
Storm! records timestamps for lightning and thunder events so you can measure elapsed time with two simple taps. The app converts the time difference into a distance in meters and presents the result clearly. The interface is minimal and designed for quick operation in the field without extra setup, and short educational notes describe sound propagation and the physics of lightning.
Storm! offers a fast, practical way to assess storm proximity and support safety decisions. It is easy to operate without technical knowledge, making it suitable for outdoor activities such as hiking or fieldwork. The app is lightweight and focused on a single useful task, reducing distraction while reinforcing understanding of natural phenomena through hands-on measurement.
Current limitations include distance output limited to meters and reliance on manual tapping, so accuracy depends on user reaction time. There is no GPS integration or automated detection in this version. Developers plan future updates to add miles as a unit option, expand language localization, and explore integrating GPS data to enhance calculations and user convenience.