Percolator - Percolator: the always fun, supremely unique photo app that is sure to surprise you! FEATURES:
WidsMob Montage - Make stunning mosaic photos or montage shape with tiles, which supports both JPEG and PNG files.
Repix by Sumoing Ltd - Mosaic paint filters, bokeh effects, and more
Mosaic Creator - Mosaic Creator is professional mosaic tool. You can create your own picture mosaic.
Trigraphy - Photo editing app that allows you to make mosaic/abstract looking art.
GeometriCam - Photo mosaic/shape mosaic app