SocialShopWave - SocialShopWave is an all-in-one solution for acquiring traffic, increasing customer engagement and driving sales for Shopify sites.
Giftbit Payment API - Stripe for gift cards
Instabuck - Instabuck is a service that helps independent vendors to sell digital products online.
Felt for iPhone - Handwritten cards for the modern world
Gumroad - An all-in-one solution to sell your work and grow your audience.
Raise - The easiest way to save money on the go