Locket is a free app that allows users to add photos to their friends home screens. It is a widget that shows live photos from your best friends, right to your Home Screen. The app was created by developer Matthew Moss, who originally developed it as a more intimate way to stay in touch with his long-distance girlfriend. Locket lets you send pictures straight to the home screen of your iPhone for up to 5 friends. Upon signing up, the app asks you to pick 10 "best friends," with a maximum of 20 people. Users can also create separate lockets for a close friend or significant other. Lockets innovative pairing of widgets with real-time photo updates has made it a staple of our phones. It has become one of the hottest teen apps, with over 30 million signups. The app leverages a seldom-used little piece of software on the iPhone, and it’s those little widgets. Locket Widget claims its a safer alternative to the ever-popular Snapchat. However, the biggest risk on Locket is in the area of privacy. In the terms of service of the app, you’ll find a section that states Locket has rights to all photos shared on the app.