Shopify Payments lets Shopify users accept card payments without having to integrate third parties.
Authorize.Net is an online payment gateway enabling small to medium-sized online merchants to accept credit card and electronic check payments from websites and deposit funds automatically into their merchant bank account. This feature is ideal for merchants who take mail or telephone orders from their customers.
Apple Pay is a contactless payment technology for Apple devices. It was designed to move consumers away from physical wallets into a world where your debit and credit cards are on your iPhone or Apple Watch, allowing you to pay using your device instead of a card.