Photomosh - Turn anything into a vaporwave
Trigraphy - Photo editing app that allows you to make mosaic/abstract looking art.
HearSeeParty - Combine Gifs with with music using tags
Dreamscope - Make and share 'deep dream' images using dozens of supplied styles or your own.
Decim8 - Turn photographs into glitch art
Glitchatron - Destroy your favorite photos