Giftcard Zen - Buy a gift card at a discount
Handwrytten - Handwritten notes straight from your device. Huge selection of cards or design your own. Handwriting service integrates with 1000's of apps.
Wirize - Payment checkout for freelancers
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.
Google Payment API - Enable an easy-to-use checkout experience for customers
The Simple Postcard - Text a photo to mail it as a postcard