Buy now, pay later apps get tens of millions of new app downloads annually.
But how do you choose the right app, particularly when both have strong benefits?
That was the question I set out to answer by comparing Shop Pay vs. Sezzle as I used their interfaces, made purchases, and compared interest and fees.
Here are the perks, the negatives, and which BNPL provider best fits your needs.
Key Takeaways
- If you want a better overall payment tool, go with Sezzle: It gives you more visibility, flexibility, and control after checkout.
- If you only care about faster checkout, go with Shop Pay: It saves your details and speeds up purchases at stores that offer it.
- If you want to split purchases around payday, go with Sezzle: Due dates are easier to see, and eligible payments may be rescheduled.
- If you shop mostly from Shopify-powered stores, consider Shop Pay: It is convenient when the button is already available.
- If you want credit-building potential, go with Sezzle: Sezzle Up gives eligible users a clearer reporting path.
Shop Pay Overview

Shop Pay is Shopify’s accelerated checkout system. It saves customer payment and shipping information so that returning shoppers can complete future orders faster at stores that offer it. Shopify says accelerated checkouts automatically fill saved information when a customer returns to a store with that checkout method enabled.
That is where Shop Pay earns its place. It cuts out the tedious parts of online shopping: retyping an address, reentering card details, and later searching through emails for tracking updates.
Shop Pay can also show installment options, but those are handled through Affirm. Shop Pay Installments is powered and serviced by Affirm, and choosing installments means applying for a loan through Affirm at checkout.
When I tried Shop Pay on Steve Madden, I added shoes to my cart even though I was on a no-spend streak. I didn’t buy them, but I wanted to see how it worked. My total was $75.32 with taxes and shipping, and Shop Pay gave me two clear choices: pay in full or split it into four payments of $18.83 every two weeks, with no interest or fees.
Shop Pay Pros
✅ Checkout takes fewer steps: Shop Pay saves the details that usually make online checkout feel repetitive.
✅ Setup is quick: I entered my email, phone number, payment method, and shipping details, then verified with a code.
✅ Order tracking is built into the wider Shop experience: The Shop Help Center highlights tracking, notifications, saved payment methods, and Shop Pay settings inside the Shop app.
✅ Installment options are easy to understand when shown: My Steve Madden test displayed the pay-in-full choice and Pay in 4 breakdown before checkout.
Shop Pay Cons
❌ It only appears where merchants support it: If the store does not offer Shop Pay, I cannot use it there.
❌ It is not its own BNPL provider: Installments run through Affirm, so financing questions fall under Affirm’s terms.
❌ It can make unplanned purchases easier to justify: The convenience is helpful, but it also lowers the barrier to buying something I was trying to skip.
Sezzle Overview

Sezzle keeps the purchase visible after checkout.
Instead of acting mainly as a saved-checkout button, Sezzle gives shoppers a place to split purchases, check upcoming due dates, and manage active orders. Its Pay in 4 structure generally means one upfront payment and three additional payments every two weeks. Sezzle’s own example shows a $300 Pay in 4 order with a $75 down payment and three later $75 payments every two weeks, with any service fee shown at checkout.
I’ve used Sezzle when I had a lot of expenses at once, like back-to-school supplies, flights, holiday gifts, or weeks when I needed to spread costs across paychecks instead of paying everything at once.
For example, during a tight back-to-school season, I used Sezzle to purchase about $200 in supplies, paying $50 upfront and three additional payments. When I had to book a $400 flight for a family visit, I split it into four payments. During the holiday shopping season, I moved one payment back a few days until payday, which made things easier.
Sezzle Pros
✅ Due dates are easier to follow: I can see what is coming out instead of treating checkout as the end of the decision.
✅ Rescheduling may be available: Qualifying Sezzle orders may be eligible for rescheduling, though fees may apply depending on state rules and the account.
✅ Sezzle Up adds a reporting option: Eligible users can enroll and have payment activity reported.
✅ It fits clustered expenses well: School supplies, surprise repairs, travel, and gifts are easier to plan around when the payment dates are visible.
Sezzle Cons
❌ Fees are possible: Sezzle’s fee schedule includes service, rescheduling, failed payment, and late fees, depending on the situation and state law.
❌ It requires attention after checkout: Sezzle only helps if I actually check the app and keep track of active plans.
❌ Approval and spending power can change: A purchase being approved once does not mean every future purchase will work the same way.
Shop Pay vs. Sezzle Comparison
Checkout Experience: Shop Pay Makes Buying Feel Almost Automatic
Shop Pay is most helpful before you place your order.
Shop Pay is practical because there are fewer boxes to fill out, fewer payment details to enter, and less time spent at checkout when you already know what you want. When the purple Shop Pay button is there, you can go from cart to confirmation quickly and easily.
That’s what happened in my Steve Madden test. I added shoes, saw the $75.32 total, and could choose right away between paying now or splitting the purchase.
Sezzle doesn’t try to blend into the background. It asks you to pay attention to the payment schedule, which is helpful later but less smooth during checkout.
Winner: Shop Pay. It removes more of the hassle before the order is placed.
Payment Timing: Sezzle Is Easier to Work Around Real Life
Shop Pay’s installment option is simple when it appears, but the financing side belongs to Affirm. Shop Pay says approved customers make payments to Affirm, either biweekly or monthly, depending on the plans available at checkout.
For a basic Pay in 4 purchase, that may be enough. The limitation shows up later if I want the schedule to bend around payday instead of the other way around.
Sezzle is easier to work with when timing gets awkward. During holiday shopping, moving one payment back a few days mattered more than saving a little time at checkout.
The app also keeps the remaining balance harder to ignore. I can see what is due, what is still outstanding, and what needs attention before a payment fails.
Winner: Sezzle. It gives me more ways to keep the payment schedule from catching me off guard.
Store Access: Shop Pay Is Great Where It Appears, Sezzle Travels Further
Shop Pay is strong inside the Shopify ecosystem. If the stores I already like offer it, checkout becomes noticeably easier.
It also connects with useful extras through the Shop app, including delivery tracking and saved payment preferences. Shopify’s Planet app can also let merchants offer carbon-neutral shipping options, either merchant-funded or customer-funded, at checkout.
The catch is simple: Shop Pay has to be available at checkout. If the button is not there, I am not using it.
Sezzle has more ways to show up. The virtual card setup can give users more payment options, and Sezzle says single-use card purchases can be managed like other Sezzle orders, including viewing the payment plan, rescheduling, paying early, and changing the connected payment method.
Winner: Sezzle. Shop Pay is convenient inside its lane, but Sezzle gives shoppers more ways to use split payments.
Money Tools: Shop Pay Organizes the Order, Sezzle Organizes the Schedule
Shop Pay helps with the purchase itself.
It saves your information, speeds up checkout, and helps you track your order. That’s useful, but it’s not the same as having a place to manage several upcoming payment dates.
Sezzle gives you more tools to balance a purchase with your next paycheck. You get visible due dates, reschedule options, spending power, payment tracking, and a clearer reporting path with Sezzle Up.
Sezzle says enrolled users may have eligible biweekly loans reported to credit bureaus, and users can view their monthly reporting status in the app.
Winner: Sezzle. Shop Pay helps with the order; Sezzle helps with the schedule attached to it.
Final Verdict
Shop Pay is useful, but in a more limited way. If I’m already buying from a store that offers it, I like how quickly it fills in my information, verifies the purchase, and connects the order to tracking in the Shop app.
But I wouldn’t choose Shop Pay as my main split-payment option.
Sezzle gives me more of what I need when I want to space out a purchase: visible due dates, payment tracking, possible reschedules, broader BNPL use, and Sezzle Up for building credit.
So here’s my final take: Shop Pay is better for quick checkouts. Sezzle is better for managing your purchase after the first payment, which makes it a stronger overall option for me.
FAQs
Is Shop Pay the same as Sezzle?
No. Shop Pay is Shopify’s accelerated checkout system, while Sezzle is a BNPL provider with its own payment management features. Shop Pay can offer installments, but those are powered and serviced by Affirm.
Does Shop Pay let you split payments?
Yes, when Shop Pay Installments is available and the shopper is approved. The available plans depend on factors such as location, purchase amount, and checkout eligibility.
Is Sezzle better than Shop Pay?
For managing payment timing, yes. Sezzle is stronger if I want to see due dates, manage active plans, and potentially reschedule an eligible payment. Shop Pay is better when I’ve already planned the purchase and want checkout finished quickly.
Can Shop Pay build credit?
Shop Pay itself is not really a credit reporting tool. Its installment option is handled through Affirm. Sezzle has a clearer reporting path because Sezzle Up can report eligible payment activity upon user enrollment.
Which one is better for everyday purchases?
I would use Shop Pay for a planned purchase from a store that offers it. Meanwhile, I would use Sezzle when the timing of the payments matters more than checkout speed.
