The best alternatives to SprayPrinter 2.0 are Tilt Brush by Google, A-Frame, and Arfiti. If these 3 options don't work for you, we've listed a few more alternatives below.
Arfiti is a new iOS Augmented Reality app. Digitally tag any surface — be it a wall, building or monument — with your personal images or pre-populated stickers and save it for others to discover.