Lifestage has had little success so far. Following Slingshot, Paper and Riff, it seems destined for the App Store scrap pile. Maybe that's okay for Facebook though. These quirky, offshoot apps give the company a place to try new ideas. If they fail to find an audience, no problem -- the team can drop them and start again with something else. If, however, they start to resonate with users, Facebook can increase their resources or pull their functionality back inside one of the main apps. Snapchat is huge, but so is Instagram and Facebook Messenger -- before the company makes any bold changes, it makes sense to road-test them first in an app like Lifestage.