imgproxy - Fast and secure, imgproxy by Evil Martians resizes and processes images without using disk space.
Percolator - Percolator: the always fun, supremely unique photo app that is sure to surprise you! FEATURES:
PhotoRoom - Create studio-quality product pictures in seconds.
Repix by Sumoing Ltd - Mosaic paint filters, bokeh effects, and more
Erase.bg - Remove background from images for free
Trigraphy - Photo editing app that allows you to make mosaic/abstract looking art.