1FORhunger - Buy a meal, give a meal, get a picture of the donated meal
Public - Group chats.
Giftbit Payment API - Stripe for gift cards
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Gift Card Bank - Give a gift card to someone in need due to Coronavirus
Chalk - Chalk is a calculator that tries to do right what others do wrong.