If I change my mind which picture I want to use, I get a black screen instead of my photo album when I hit the back button. If I make a mistake and want to un-erase the overlay I have to hit the Undo button which goes wayyy back; its easier to just start over. Its not like other apps, such as Big Lens where you can simply switch from eraser to brush and use my finger. Lastly, I paid $2.99 for an app that STILL has ads. Its crap.
Hlndcr about Instant Blend Pro - Double Exposure Blender for Instagram ready square frames and Photoshop like edition!