Thankbox - Online group card & gift collection for teams. Like passing a card around the office but without the card.
RNI Films - Real film filters for iPhone photographers
Fountain Greetings - Handwritten cards. Curated gifts. Right at your fingertips.
Carbon - Create and share beautiful images of your source code.
JibJab App - Add your self(ie) to hilarious animated GIFs and messages!
Huji Cam - Huji Cam is one of best app that makes your moments as precious as the feelings of the analog film with old memories.