DefibLocator

The Defiblocator app is an easy to use defibrillator locator that allows you to see, and get directions to your nearest defibrillator. This app was designed with simplicity in mind so that it's intuitive to use and doesn't take up much space on your device due to its low file size.
DefibLocator is building up a databse of defibrillators accross the UK thanks to its user submissions.

DefibLocator went on to pass my expectations and is currently sitting at over 6,000 downloads.
It was also featured in a few online and printed newpapers.