Snapchat -- the mobile application that allows users to send disappearing photos and videos to each other -- has settled with the Federal Trade Commission over the true disappearing nature of its users' content. The FTC has said that there are various ways for users to store data from the app, and that Snapchat needs to be more upfront with its users.
Background:
Snapchat settles with FTC over vanishing photos that don't [CNET]
Snapchat Settles Charges With F.T.C. That It Deceived Users [New York Times]
FTC Tells Snapchat To Stop Lying About Photos Disappearing [Forbes]