When it comes to apps designed for safety, it doesn't get much more revolutionary than Companion. Designed by students at the University of Michigan, the app lets you enter your destination and then select contacts to be your "companions" and follow your route home via a live map. If you start running, your phone falls to the ground, or you don't make it to your destination on time, you'll get a message asking if everything is OK — if you don't respond in 15 seconds, the app alerts your companions. It also includes features to call police or give a heads up about unsafe conditions — making it the ultimate app for avoiding uneasiness walking home alone.
Available for iOS and Android