The purpose of Flash Boom is simple. It will give you an estimate of how far away lightning is. The rule of thumb says to allow about 5 seconds for each mile (3 seconds for each kilometer). In reality it is more like 4.72 seconds per mile and 2.99 seconds per kilometer.
|File Size||195.31 kB|
|Operating System||iPhone OS 3.x iOS|
|System Requirements||Requires iPhone OS 3.0|