Apps
Filterstorm
Filterstorm was originally released alongside the first iPad with the goal of being the preeminent photo editing app on the device. Years later it’s still going strong on both iPhone and iPad, with a recent rewrite Filterstorm Neue improving speed, stability, and ease of use.
Gridditor
Gridditor stands in contrast to Filterstorm as a fast, simple way to edit photos, rather than a deep and powerful app. Gridditor’s unique interface makes it unlike anything else on the App Store.
Inkist
Inkist is a drawing app originally on Mac, and later for iPad. It provides a variety of drawing tools including customizable brushes, layers, and pressure sensitivity.