What is the iphone app that makes the photo background white?

I have the app whitagram which is good, but I keep seeing people on instagram using a photo editor that makes the background white, but also you can move the photo more to the left, more to the right and change the size of it without cropping it. I think you can also add cute stamps to it (love hearts etc). Lots of people use it but noone will tell me what it's called which is very frustrating.

Here you'll find bunch of useful apps for such photography requirements:
http://apps-catalog.com/products/photography-apps