CollageIt Pro is a collage creation tool. The images that you feed to the application can be automatically pasted into a variety of collage templates. These determine the location and size of your pictures. Some of the templates are good for 6 or 7 pictures, but there are are bigger templates that can fit up to 50 pictures. There are four types of templates: Mosaic, Grid, Center and Pile.
After you have selected one, you can starting adding your pictures and modifying the template layout settings. Photos are added by clicking on the "+" button in the bottom-left corner of the window. You can customize the template to allow for more pictures by moving a slider bar on the right, and you can also change the space and margins between photos. There is a checkbox that can be activated so that the photos that you add are only used once. If this checkbox is unchecked, the photos will be repeated to fill all the available spaces.
CollageIt Pro made it easy for me to create a nice-looking collage. I like that the process is mostly automatic but it also lets you customize the templates quite a bit. The export options are also numerous. You can export your collages into image files, PDF files, a wallpaper or attach it into an e-mail directly from the App.