P!cOverlay - Overlap unlimited pictures with this photo collage builder.
iOS iPhone Photography
Use an unlimited number of your pictures to overlap, enlarge, shrink, position, or add white circles around each photo if you wish. You can enlarge and shrink each individual photo as you move them. All photo collages are saved perfectly square for posting on Instagram, Facebook, or other sites. This app makes it easy to put a picture in a picture or make collages with a very large number of photos.
A few adjustments were made to make this more user friendly.