One of Masquerade's popular features is "face swap," which lets people trade faces with one another in photos. The app also lets you take selfies in celebrity masks. Facebook CEO Mark Zuckerberg ...

The face-swapping filter on Snapchat is getting plenty of use as of late, and Facebook is joining the fray as well. Zuckerberg & Co. bought the popular app Masquerade (MSQRD) that offers a similar ...