Sezzle's Sezzle Up builds your credit score. Zip (formerly Quadpay) works at 160K+ stores with a virtual card. Both split purchases into 4 payments with no interest.
Last updated: April 2025
| Feature | Sezzle | Zip | Winner |
|---|---|---|---|
| Payment Structure | 4 payments / 6 weeks | 4 payments / 6 weeks | Tie |
| Interest | None | None ($1 flat fee/installment) | Sezzle |
| Merchant Network | 47,000+ | 160,000+ | Zip |
| In-Store Use | Limited partners | ✅ Virtual Visa card | Zip |
| Credit Building | ✅ Sezzle Up (opt-in) | ❌ No | Sezzle |
| Late Fee | $10 reschedule fee | Up to $7 | Zip |
| App Rating (iOS) | 4.8 / 5 | 4.7 / 5 | Sezzle |
| Overall Score | 85/100 | 83/100 | Sezzle |
Sezzle wins overall — no per-installment fees and credit building via Sezzle Up. Zip is the pick when you need to pay in 4 at a store that doesn't accept Sezzle — its virtual Visa card works almost everywhere.