Lately I've been looking into personal safety Apps and you'd be surprised at what's out there. I'm not talking about Apps that teach you Kung Fu from the screen, but Apps that can be used to save your life in an emergency. These are some of the features you might want to look out for:
Emergency Services / Contact Alert
Panic Buttons / Personal Alarm
Check In Timer
Torch / Flashlight
Portable Sensory Alarm
Top tip: Personal safety Apps are no good if you have to go through three files to access them. Have it ready to go at the touch of a button. You may find it useful to attach your personal safety App to your convenience key but bear in mind that if you have several safety Apps all providing different features, you will only be able to attach one so it may be best to shop around and find the App contains all the features you need in one whack.