Giftbit Payment API - Stripe for gift cards
ezgif.com - Ezgif.com is simple online gif maker and toolset for basic animated gif editing.
Felt for iPhone - Handwritten cards for the modern world
Gifsicle - Gifsicle is a powerful, simple command line tool for creating, editing, and optimizing animated GIFs.
Raise - The easiest way to save money on the go
Instagiffer - Create GIFs from anything!