Klarna

Shopify

Klarna

Klarna makes money from merchant fees and consumer interest. Merchants pay Klarna 3-6% of each transaction — they're willing to pay because Klarna increases conversion rates by 30%+ and average order values by 45%.

On "Pay in 4" (interest-free installments), Klarna makes money purely from merchant fees. On longer financing (6-36 months), Klarna charges consumers interest up to 25% APR.

Klarna also earns revenue from its shopping app (affiliate commissions when users discover and buy from merchants), and from its Klarna Card.

Shopify

Shopify charges merchants a monthly subscription fee — $39/month for Basic, $105/month for Shopify, and $399/month for Advanced. Enterprise clients pay more through Shopify Plus.

On top of the subscription, Shopify takes a cut of every transaction processed through Shopify Payments (2.9% + $0.30, similar to Stripe). If merchants use a third-party payment provider, Shopify charges an additional 0.5-2% fee.

The genius of the model is stacking revenue. Subscription fees are the base layer.

Payment processing is the second layer. Then there's Shopify Capital (lending money to merchants), Shopify Shipping (discounted shipping labels), Shopify Email, the app store (Shopify takes 0% on the first $1M in app revenue, then 15%), and Shopify Balance (banking for merchants).

Every new service extracts more value from each merchant.

Klarna

Sebastian Siemiatkowski, Niklas Adalberth, and Victor Jacobsson were students at the Stockholm School of Economics. In 2005, they entered a startup competition with an idea: let people buy things online and pay later.

At the time, online shopping was still new and most people were terrified of entering their credit card details on the internet. The idea was simple — Klarna would pay the merchant immediately, and the customer would get an invoice with 14-30 days to pay.

The competition judges hated it. The idea was dismissed as financially irresponsible and the team didn't win.

But Siemiatkowski pressed on. Swedish e-commerce was growing fast and merchants were desperate for any way to reduce cart abandonment.

Klarna's "pay after delivery" model was a hit because it shifted the risk — customers could receive the product, try it on, and only pay for what they kept.

The first customers were Swedish e-commerce merchants selling fashion and home goods. Klarna handled the invoicing, fraud detection, and collections.

Merchants saw conversion rates jump because customers were more willing to buy when they didn't have to pay immediately.

Shopify

Tobias Lütke was a programmer from Koblenz, Germany who moved to Ottawa, Canada in 2002 because he fell in love with a Canadian woman. He wanted to sell snowboards online through a store called Snowdevil.

The problem was that every e-commerce platform in 2004 was absolute garbage. They were expensive, ugly, and painful to use.

Most required a computer science degree just to set up.

Lütke was a Ruby on Rails developer — one of the early ones, when Rails was still a brand-new framework. Instead of suffering through the existing tools, he just built his own e-commerce platform from scratch.

Snowdevil launched on the custom-built platform, and it worked beautifully. Other small business owners saw it and started asking if they could use the same software.

Lütke teamed up with Daniel Weinand and Scott Lake. In 2006, they launched Shopify as a product — a hosted e-commerce platform that let anyone set up an online store without knowing how to code.

The first year was slow. They had about 100 merchants.

But the product was so much better than everything else that word spread. By 2009, they had launched an API that let developers build apps and themes for Shopify stores, creating an ecosystem that would become one of their biggest advantages.

Klarna

Klarna grew by being embedded at checkout. The strategy was to sign up the biggest online retailers and become a payment option alongside Visa and PayPal.

Once Klarna was at checkout, consumers discovered it organically. The "Pay in 4" button became ubiquitous across fashion, electronics, and home goods retailers.

The Klarna app became a growth engine beyond checkout. By building a shopping app where users could browse products, discover deals, and track deliveries, Klarna turned from a payment method into a shopping destination.

The app has 35+ million monthly active users who start their shopping journey inside Klarna before even visiting a retailer.

International expansion was aggressive. Starting in Sweden, Klarna rolled out across Europe, then into the US, UK, and Australia.

The US became the biggest growth market — American consumers were especially receptive to Pay in 4 as an alternative to credit cards. By 2023, Klarna had 34 million US users.

Shopify

Shopify grew by being the anti-Amazon. Their pitch was simple: Amazon is a marketplace where you're one of millions of sellers with no brand identity.

Shopify lets you build your own brand, own your customer relationships, and control your destiny. "Arm the rebels" became their unofficial motto.

The app ecosystem was a multiplier. By letting third-party developers build apps, themes, and integrations, Shopify created a marketplace of 8,000+ apps that extended the platform's functionality infinitely.

Need email marketing? There's an app.

Need inventory management? There's an app.

This meant Shopify could stay focused on the core platform while the community built everything else.

The Shopify Partners program turned freelance developers and agencies into a sales force. Partners who built stores for clients earned recurring revenue from referrals.

Over 10,000 agencies worldwide now specialize in Shopify development. It's basically a franchise model for tech.

COVID was rocket fuel. When physical retail shut down in March 2020, every small business in the world suddenly needed an online store immediately.

Shopify's new store creation surged 71% in Q2 2020. The stock went from $400 to $1,700 in less than a year.

Klarna

The valuation collapse was humiliating. Klarna raised at a $46 billion valuation from SoftBank in 2021.

One year later, they raised a down round at $6.7 billion — an 85% haircut. It was the most dramatic valuation drop in fintech history.

Employee stock options were underwater. Siemiatkowski had to lay off 10% of the workforce.

The entire BNPL category went from hot to radioactive in months.

Credit losses are the existential risk. Klarna is lending money to consumers who want to buy things they can't afford to pay for right now.

When the economy slows, defaults rise. Klarna's credit losses hit $1 billion in 2022.

The company had to tighten underwriting significantly and pull back from riskier markets. The tension between growth (approve more loans) and profitability (reject risky borrowers) defines every quarter.

The IPO in 2025 was a comeback story but with caveats. Klarna went public at $15 billion — a major recovery from the $6.7 billion trough but still less than a third of its 2021 peak.

The company finally turned profitable by slashing costs with AI (replacing hundreds of customer service agents with AI chatbots) and tightening credit standards. But investors remain cautious about the BNPL model's long-term sustainability.

Shopify

The Amazon problem looms over everything. Amazon controls roughly 40% of US e-commerce.

Every Shopify merchant competes against Amazon, and many of them sell on both platforms. Amazon can always undercut on price, offer faster shipping, and has nearly unlimited resources.

Shopify's entire business depends on convincing merchants that owning their brand is worth more than Amazon's convenience.

The post-COVID hangover was brutal. After the pandemic boom, Shopify's stock dropped 80% from its November 2021 peak.

The company had hired aggressively during COVID, expecting the e-commerce shift to be permanent at pandemic levels. It wasn't.

In May 2023, Lütke laid off 20% of the company — about 2,300 people — and wrote a public letter admitting he had bet wrong on how much of the COVID shift would stick.

The fulfillment pivot was expensive. In 2019, Shopify announced the Shopify Fulfillment Network — their plan to build a warehouse and logistics network to rival Amazon.

They poured hundreds of millions into it. By 2023, they realized it was a money pit that distracted from their core business.

They sold the logistics operation to Flexport and wrote off the investment. Lütke called it "taking the medicine."

Klarna

Pay in 4 is the signature product — split any purchase into four interest-free payments over six weeks. Pay in 30 lets customers receive the product first and pay within 30 days.

Financing offers longer-term payment plans with interest for larger purchases. The Klarna App is a shopping destination — browse deals, track orders, manage payments, and earn cashback.

The Klarna Card is a physical Visa card that lets users Pay in 4 anywhere. Klarna Creator is a platform for influencers to earn commissions sharing products.

Klarna AI is their customer service chatbot that handles two-thirds of support queries.

Shopify

Shopify Online Store is the core — build and run an e-commerce website. Shopify POS (Point of Sale) handles in-person retail with card readers and inventory management.

Shopify Payments is the built-in payment processor powered by Stripe. Shop Pay is the accelerated checkout — it saves customer info so returning buyers can check out in one tap.

Shopify Capital provides cash advances and loans to merchants based on their sales data. Shopify Fulfillment Network was their attempt to compete with Amazon on shipping (they scaled it back in 2023).

Shopify Markets handles cross-border selling — currencies, duties, and translations. Shopify Audiences uses anonymized data to help merchants find new customers on ad platforms.

Klarna

Sequoia Capital, SoftBank, Silver Lake, GIC, Atomico, Commonwealth Bank of Australia, Heartland

Shopify

Bessemer Venture Partners, FirstMark Capital, Felicis Ventures, Georgian Partners, OMERS Ventures