BNPL Comparison 2026
18 million searches a month for a reason — these are the two biggest BNPL apps in the US. Here's exactly how they differ.
Best for shoppers who want the most flexibility — Pay in 4, Pay in 30, monthly financing, AND a browser extension that works anywhere.
Best for shoppers who want zero surprises — always Pay in 4, never interest, and strong in-store presence at fashion and beauty retailers.
| Feature | Klarna | Afterpay |
|---|---|---|
| Pay in 4 (0% interest) | ✓ | ✓ |
| Pay in 30 days | ✓ | ✗ |
| Monthly financing (up to 36 mo) | ✓ | ✗ |
| Browser extension | ✓ | ✗ |
| Partner stores | 500,000+ | 100,000+ |
| In-store payments | ✓ | ✓ |
| Interest on Pay in 4 | 0% | 0% |
| Interest on financing | 0%–33.99% APR | N/A |
| Late fee | Up to $7 | Up to $8 |
| Credit check for Pay in 4 | Soft only | Soft only |
| Credit building | ✗ | ✗ |
| Virtual card (use anywhere) | ✓ | ✓ |
| Spending limit | Varies per plan | Up to $4,000 |
| App rating (iOS) | 4.7★ | 4.9★ |
Klarna's Pay in 4 works exactly like Afterpay's — four equal payments every two weeks, 0% interest. But Klarna also offers two options Afterpay doesn't: Pay in 30 days (one payment a month later, still 0% interest) and monthly financing (6–36 months at 0%–33.99% APR).
Pay in 30 is genuinely useful — it lets you receive an order, decide if you want to keep it, then pay. No commitment until you've held the item. That's a real advantage for online fashion shopping where returns are common.
Monthly financing is where caution is warranted. The 0% promotional APR is only available at select merchants for specific promotions. For regular purchases, you may see rates from 10%–33.99% APR — rates comparable to credit cards. Always check the financing offer screen before selecting this option.
Klarna claims 500,000+ partner merchants globally; Afterpay lists 100,000+. But both offer virtual cards, which means you can use either app at virtually any online store that accepts Visa or Mastercard — the merchant network number matters less than it sounds.
Where the network difference does matter: in-store. Afterpay has deep relationships with physical fashion retailers — Urban Outfitters, Anthropologie, DSW, and many more have Afterpay QR codes at the register. Klarna has in-store integrations too, but it's less dominant in physical retail.
Klarna's browser extension is the real differentiator online. It works at stores that haven't formally partnered with any BNPL provider, letting you apply Pay in 4 to almost any checkout page.
Neither app charges interest on Pay in 4, but both charge late fees. Afterpay charges up to $8 per missed payment (capped at 25% of order value). Klarna charges up to $7 per late payment. The difference is small — both are designed to be minor deterrents, not major revenue sources.
Both apps will pause your account if you miss payments, preventing new purchases until you're current. Afterpay's pause system is generally considered more transparent, giving clear notifications before restrictions kick in.
For monthly financing on Klarna, late payments can trigger the full APR retroactively on some plans — read the financing agreement carefully. This risk doesn't exist with Afterpay because Afterpay doesn't offer financing.
If you want Pay in 30, a browser extension, or financing — go Klarna. If you want the cleanest Pay in 4 experience with zero risk of accidentally selecting an interest-bearing plan, Afterpay is the winner.