Oilist - The groundbreaking generational art app
AndreaMosaic - With AndreaMosaic you can create your own photographic mosaics made with your own pictures.
Mosaic Creator - Mosaic Creator is professional mosaic tool. You can create your own picture mosaic.
Percolator - Percolator: the always fun, supremely unique photo app that is sure to surprise you! FEATURES:
Repix by Sumoing Ltd - Mosaic paint filters, bokeh effects, and more
GeometriCam - Photo mosaic/shape mosaic app