Stripe iOS SDK - Accept both Apple Pay and credit card payments easily on iOS

Stripe Terminal - The programmable point-of-sale solution 💳🛠️

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.

Square Register - A fully integrated point of sale (POS) system 💰

Bonsai Payments - Simple invoicing & payments for small businesses and freelancers. Collect instant payments or set up recurring payments. Get paid via credit card or bank deposit in 100+ currencies.

RoyalPOS - Point of sale system for restaurants & retail stores