Polargram - Print your Instagram and Facebook photos with ease
UnfoldPrints - UnfoldPrints is an app that allows you to make photo collages and order them to print.
Repostage - Print your Instagram photos with a hashtag
Lalalab - Print photos from your iPhone
Lura - Lura replaces receipt printers with a mobile device that displays a QR Code when printed to, so retailers can issue digital receipts without collecting any personal information.
Picta Photo Print - Picta Photo Print is an app that allows you to place an order for online photo prints.