The Simple Postcard - Text a photo to mail it as a postcard
Mixtiles - Mixtiles is a photography application that turns your photos into self-adhesive wall art.
Mailjoy - Delightfully easy direct mail marketing. A DIY direct mail tool created for marketing and growth teams. Design, mail & track personalized direct mail postcards and letters. Digital marketers use Mailjoy to send data-driven mail campaigns.
MeshCanvas - MeshCanvas is a stackable canvas and photo board application that turns your images into ready wall canvas art.
Felt for iPhone - Handwritten cards for the modern world
Groovebook - Groovebook is a magnificent tool through which you can precisely take your photography to an extreme height, developed and published by Shutterfly Inc.