For mobile photographers, collage apps are second only to filters in their ability to take low-res images and make them look somewhat interesting. Rather than continue to cede this area to competing apps, Instagram has decided to create its own dedicated piece of software. It's called Layout.
Layout can pull photos from your gallery or instantly arrange images as you snap them. Then you drag, resize, flip, or rotate different parts of the collage by tapping, pinching, pulling, and twisting your fingertips against the screen. Naturally users will have the option to share their creativity on their Instagram feeds.
While the app is immediately available in the Apple App Store, but it won't show up for Android for several months. Launching on iOS first is just something the Instagram folks like to do, so for the time being, you will have to continue using one of the other bajillion collage apps offered in the Play Store.
- Instagram blog