MyPostcard - Send real photo postcards and greeting cards - worldwide, from any place to anywhere.

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.

Postsnap - Postsnap's iPhone app is the best, free postcard creator. Make & send real printed postcards, greeting cards, invitations and announcement cards using your own photos.

I hate mailto - Stop websites from opening your email client.

Stampix - Photo printing in a fast, easy & ecological way.

Felt for iPhone - Handwritten cards for the modern world