Strike Timer helps you estimate distances using sound. Just tap a button when you see something in the distance, and tap again when you hear the sound. Works great for estimating the distance of lighting or how far you are from the plate next time you get the cheap seats at a baseball game.

Supports both miles and kilometers which can be changed at any time. You can also check out all the distances you've recorded since the app was launched.

Warning: This app is for entertainment purposes only, and distances may not be accurate. If you can see or hear lightning, seek shelter immediately.