Are you one of those people who have old iOS devices laying around your house just waiting to be brought to the recyclers or given to a friend in need? I have always kept my old devices as a backup in case I ever need to send my new one out for repair.

For those of you planning on upgrading your iPhone, iPad or iPod touch soon, you might rethink selling or recycling it, and instead, turn it into a home security system. Huh? Yes, you heard me.

With a new app by People Power you can easily make an old iOS device your new home security system. The system supports the iPad 2 and newer, iPod touch (5th gen.) and newer and iPhone 3GS and newer.

The app is called Presence; it’s free and it has some seriously great reviews. All you need to do is download the app on at least two devices, connect over Wi-Fi and set up your device in the desired spot you wish to watch. You can then set up specific alerts for when motion has been detected.

The alerts might be for when your kids get home from school, if someone breaks into your apartment, or maybe you have elderly parents who you’d like to make sure are up and moving that day. Throw a waterproof case on the phone and you can set it up outside and get video clips to see what kind of animal is eating your freshly sprouted blueberries.

People Power will soon have a subscription, allowing you to upgrade to Presence Pro for more storage and added features. Even if you don’t feel the need to monitor any activity going on, it might be fun just to play around with the app since it is free, and who knows, you may just find a cool use for it!