Privacy.com - Get a new virtual card for every transaction
Stripe - Online payment processing for internet businesses. Stripe is a suite of payment APIs that powers commerce for online businesses of all sizes. Use Stripe’s payment platform to accept and process payments online for easy-to-use commerce solutions.
sweetgreen for iOS - Order, pay, rewards. It's so clean, you can eat off it.
Shopify Pay - Give shoppers a fast, secure way to pay
Pay in apps with Venmo - Make purchases in apps using your Venmo account
Stripe iOS SDK - Accept both Apple Pay and credit card payments easily on iOS