Affirm vs Klarna 2025:
Which BNPL App Wins?

Affirm is a BNPL service offering repayment terms from 1 to 60 months at 0–36% APR. It's ideal for larger purchases — furniture, electronics, travel packages — where you need more time. Affirm does a soft credit check (doesn't hurt your score), shows your exact total upfront, and charges no late fees ever.

Klarna offers three options: Pay in 4 (0% interest, 4 payments over 6 weeks), Pay Later (pay the full amount within 30 days), and Financing (monthly payments with interest for larger purchases). Klarna works at 500K+ stores and its browser extension adds BNPL to almost any online checkout.

Affirm wins for large purchases. Affirm's monthly repayment plans (up to 60 months) and high purchase limits (up to $17,500+) make it the right tool for furniture, appliances, or vacations. Klarna Pay in 4 is capped around $1,000 per purchase and is designed for everyday shopping, not major expenses.

Klarna Pay in 4 is always 0% interest. Affirm charges 0% APR at select partner merchants (like Peloton, Walmart) but 10–36% APR on standard monthly plans depending on your creditworthiness. Always check Affirm's offered rate before committing — you'll see the exact total before confirming.

Klarna has significantly more merchants — 500K+ worldwide vs Affirm's 235K+. Klarna's browser extension further extends its reach by adding a BNPL button to virtually any online checkout, even stores that haven't formally partnered with Klarna. For merchant breadth, Klarna wins easily.