sweetgreen for iOS - Order, pay, rewards. It's so clean, you can eat off it.
Stripe iOS SDK - Accept both Apple Pay and credit card payments easily on iOS
Pay Finders - Discover and explore local merchants that accept Apple Pay
AppToolkit SDK - Find your super users and engage with them!
Pay in apps with Venmo - Make purchases in apps using your Venmo account
bunq Apps - Create and market apps that work with bank accounts