Strike Analyzer - Lightning

How far away was that lightning strike? Flash-to-bang, done right. Tap when you see the flash and tap when you hear the thunder — or point the camera at the storm and let it measure hands-free. ⚡ STRIKE ANALYZER — Lightning Distance Calculator 👆 MANUAL MODE One big glove-friendly button. Tap at the flash, tap at the thunder, get the distance. Works anywhere, day or night, no permissions needed. 📷 AUTO MODE The camera watches for the flash while the microphone listens for the thunder onset, then pairs them automatically. Built to catch daylight bolts, not just night storms — set the phone down and watch the sky. 📸 BOLT PHOTOS Auto mode saves the exact camera frame that triggered detection — your lightning photo, tagged with distance, time, and GPS location. 📈 STORM TREND Consecutive strikes reveal whether the storm is approaching or moving away, how fast, and roughly when it'll be overhead. 🗺️ LIVE RADAR MAP Weather radar with real-time lightning strikes, centered on you. Zoom in on your neighborhood or pan out to see the whole system moving through. 📒 STRIKE LOG Every measurement is kept — distance, time, flash-to-bang, GPS pin — and exports as CSV whenever you want it, your complete history, free or not. 🔬 THE SCIENCE Distance comes from the temperature-corrected speed of sound (331.3 + 0.606×T m/s), not a fixed constant — cold air carries thunder slower than warm air, and that difference adds up over a few miles. Temperature comes from live local conditions when location is on, or a standard 20°C/68°F otherwise. Storm trend uses a least-squares regression across your last 30 minutes of strikes rather than comparing the last two — a single stray reading can't flip approaching to receding. 🔒 PRIVATE BY DESIGN All flash and thunder detection runs entirely on your phone — your camera and mic data never leave the device. Location is optional, used only to GPS-tag photos, pull live temperature, and center the map on you. 💾 FREE VS PRO Free includes full manual and auto detection, bolt photos, storm trend, the live radar and lightning map, and CSV export of your complete history. The in-app log view shows your last 5 strikes. A one-time Pro purchase removes ads and unlocks your full strike history in the log view — everything you logged while free unlocks retroactively. No subscription. No account. ⚠️ LIGHTNING SAFETY FIRST Strike Analyzer is not a safety device. Flash-to-bang distances are estimates and can be wrong. Never use this app to decide whether it's safe to stay outdoors. If you can hear thunder, you're close enough to be struck. Follow the National Weather Service guidance: When Thunder Roars, Go Indoors — and stay there until 30 minutes after the last thunder. 🆘 SUPPORT Email: [email protected] Website: https://prodirt-llc.github.io/StrikeAnalyzer/ Made in Virginia, USA.