| # | App | Category | Script KB (p50) | Script KB (p75) | Script requests (p50) | Stores |
|---|---|---|---|---|---|---|
| 1 | Klarna | Payments & BNPL | 219 | 220 | 3 | 6,550 |
| 2 | PayPal | Payments & BNPL | 194 | 196 | 2 | 13,306 |
| 3 | Affirm | Payments & BNPL | 150 | 150 | 1 | 3,216 |
| 4 | Amazon Pay | Payments & BNPL | 96 | 96 | 1 | 525 |
| 5 | Sezzle * | Payments & BNPL | 41 | 41 | 2 | 3,485 |
| 6 | Afterpay | Payments & BNPL | 7 | 30 | 1 | 8,422 |
* Attribution domains not yet manually verified. Data: HTTP Archive mobile crawl, Sept 2026, store home pages.