Klarna

Klarna is the absolute, undisputed Swedish titan that essentially invented the modern Buy Now, Pay Later (BNPL) industry. It is not just a payment gateway; it is a massive, incredibly powerful global marketing engine and consumer brand that completely dominates the retail and fashion e-commerce sectors. Its absolute biggest differentiator is its "Consumer App." Millions of shoppers actively use the Klarna app almost like Instagram, scrolling through curated lists of fashion and electronics. When a retailer integrates Klarna, they aren't just getting a payment method; they are getting listed in the Klarna app, instantly exposing their store to a massive, highly engaged audience of Gen Z and Millennial shoppers, driving massive top-of-funnel traffic. For the merchant, the risk is zero. If a customer buys a $400 jacket using Klarna's "Pay in 4" model, Klarna instantly pays the merchant the full $400 upfront (minus their transaction fee). Klarna assumes 100% of the credit risk. If the customer defaults and never pays the remaining installments, the merchant keeps the money, and Klarna takes the loss.