Layout by Instagram - Combine multiple photos into a single image
Music on Vine - Vine, now with music. Make 6-second music videos.
Vine Camera - Vine Camera is one of the best video editing application that allows you to make 6-second looping videos and post it directly to Twitter, Facebook, Instagram and all the other social platforms.
Mindie - 10 second music videos (w/ private mindies)
Live GIF - Convert live photos to GIF
Triller - Make celebrity-quality videos with a few taps of your phone