1FORhunger - Buy a meal, give a meal, get a picture of the donated meal
MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Giftbit Payment API - Stripe for gift cards
Brevo - Innovative online Email Marketing solution to manage your contacts, create & send your newsletters and track your results. More than 80 000 clients. Best prices and attractive features.
Gift Card Bank - Give a gift card to someone in need due to Coronavirus
Campaign Monitor - Email marketing software built for designers and their clients to run successful email campaigns.