PowerAid

This is a very good idea and responds to the basic power outage alert.

PowerAid is an app that brutally awakes you in case of a power outage. If there is a storm coming, or a big freeze is on it's way, you really need this app. Even if PowerAid awakes you just once, it will probably be your wisest investment ever.

If you have important devices running and want to know if a power failure occurred while you are away, this app can help.
This Alarm works in the background on your iPhone device and will keep monitoring even when your device is asleep and the screen is off.

PowerAid can also be used as a anti-theft alarm when charging your iPhone in public places.

IOS App - DOWNLOAD