Then I found PhotoCook, an app designed specifically for Instagrammers. The app roofers a wide variety of grids that can be easily populated with Instagram photos.
It also has advanced features such as 20 different filters and a huge library of stickers. Users can also use sliders to adjust border sizes and corners.
Finished collages can be shared on Instagram where #photocook will link a project with other PhotoCook users.
iOS users can download the app for free in the iTunes App store.