CollageMo - Easily create beautiful real life wall collages
Percolator - Percolator: the always fun, supremely unique photo app that is sure to surprise you! FEATURES:
A Color Story - The photo app to colourize your life
AndreaMosaic - With AndreaMosaic you can create your own photographic mosaics made with your own pictures.
Shrub - Draw with your camera.
Repix by Sumoing Ltd - Mosaic paint filters, bokeh effects, and more