Oho Cards - Augmented Reality greeting cards
Thankster - Automagically send hand written cards
Thankbox - Online group card & gift collection for teams. Like passing a card around the office but without the card.
Bond - A simple app that reminds you to keep in touch with people
Fountain Greetings - Handwritten cards. Curated gifts. Right at your fingertips.
Felt - Felt lets you create maps collaboratively, using world-class data, and share them in a single click. For team projects or epic adventure with friends.