MagicaVoxel - A free lightweight GPU-based voxel art editor and interactive path tracing renderer.
Percolator - Percolator: the always fun, supremely unique photo app that is sure to surprise you! FEATURES:
Cubik Studio - Model in a unique cubic style. Start modelization with boxes. Move, rotate and scale cuboids.
Repix by Sumoing Ltd - Mosaic paint filters, bokeh effects, and more
Goxel - Goxel is a simple, but powerful voxel graphic editor with 24-bit color support, unlimited scene...
Trigraphy - Photo editing app that allows you to make mosaic/abstract looking art.