The THRIVE team spoke to five developers working across fintech and commerce to understand how Paystack and Flutterwave perform in real-world e-commerce checkout, where payment flows usually break, and which one they would recommend for online stores. Read on to see what they think. 

Every Nigerian business selling online wants payment to be simple. A customer sees a product, adds it to cart, clicks Pay, and the order should move smoothly from interest to confirmation. 

But checkout is not always that straightforward. A customer can pay and still see a pending order. A webhook can arrive late. A business can receive money without a clean record connecting that payment to the right order.

So instead of another generic Paystack vs Flutterwave comparison, THRIVE asked five Nigerian fintech developers to rank both payment gateways based on real integration experience and explain which one they would recommend for e-commerce stores.

We spoke with five developers working across fintech, commerce, and digital product development.

We chose them because checkout is not one problem. It touches backend verification, frontend experience, customer behaviour, payment-provider integration, settlement, reconciliation, and how store owners actually receive and process money.

Adedoyin, a full-stack developer working in commerce, explains where checkout often breaks after the customer clicks Pay.

Gafar Olaniyan, founder of a commerce technology agency, brings the business and merchant perspective on transfers, cash flow, and payment conversion.

Blossom, a backend developer working across fintech, payments and operations, explains what happens behind the scenes between the store, the payment provider and the merchant’s backend.

Rose, a backend developer in commerce, will share insight on payment systems, store operations and how merchants handle transactions.

Jaiye, a frontend developer in commerce, will explain how checkout design, mobile experience and customer trust affect payment completion.

For Adedoyin, the issue is not always the gateway. It is the payment flow.

He says checkout often breaks after the customer has attempted payment, and the store needs to confirm whether the transaction was successful, failed, abandoned, or still pending.

That is where webhooks come in. A webhook is supposed to notify the merchant’s backend when a payment status changes. But if it arrives late or does not arrive at all, the customer may believe they have paid while the business still sees the order as pending.

His advice is not to confuse customers with too many payment gateways.

“I would lean towards a single payment gateway rather than showing customers multiple options.”

Adedoyin would pick Paystack, mainly because of speed, smoother documentation and fewer bad experiences from his own usage. But his bigger point is that customers should not have to think too much at checkout. They should simply pay.

For Gafar, Nigerian customers are increasingly choosing bank transfers over cards.

He says payment behaviour has moved in through these phases. First USSD, then cards, and now transfers.

“The transition was USSD, card, then transfers. Transfers stop everything.”

For customers, transfers feel faster and more familiar. Unlike cards, they do not always require entering long details, searching for a card, or going through multiple authentication steps.

For cashflow-heavy businesses, Gafar also gives Paystack the edge because of faster settlement. But for him, improving checkout is not only about choosing a provider. It is about reducing friction.

“Reduce the barriers for entry as much as you can.”

If customers think payment is too expensive, give them a structure that makes it feel easier. If instalments make sense, consider them. If the checkout process has too many steps, remove them.

For Gafar, checkout is not just a payment issue. It is a customer-experience issue.

From Blossom, a backend developer, payment is more complicated than what the customer sees.

A customer may click Pay, complete the process, and land on a success page, but that does not automatically mean the merchant’s backend has confirmed the transaction correctly.

The store still needs to create the order, generate a unique payment reference, send the details to Paystack or Flutterwave, receive a webhook, verify the transaction, and update the order.

The safest principle is:

“The webhook alerts the system, transaction verification confirms the financial details, and the database records the result exactly once.”

This is where many founders get it wrong. A checkout is not properly implemented simply because a test payment reached a Payment Successful page.

It is properly implemented when the system still works during delayed confirmations, duplicate webhooks, failed callbacks, pending transactions, and reconciliation issues.

For Rose, a backend developer working in commerce, both Paystack and Flutterwave are generally straightforward to integrate once the payment flow is clear.

But the biggest difference, she says, is the developer experience.

Paystack feels more straightforward from a backend perspective because the API structure is easier to understand, especially from transaction initialization to verification. Flutterwave also provides the tools needed, but its different payment flows and response structures may require more attention during implementation.

Still, Rose does not think one provider is automatically better for every business.

“I wouldn’t say one is universally better than the other. A lot depends on the specific payment methods, currencies, countries, and business requirements you’re supporting.”

For her, the biggest mistake developers and businesses make is assuming that because the payment page says successful, the transaction has actually been confirmed.

The backend still needs to verify the payment through the provider’s API, check the status, amount, reference, and other important details before marking an order as paid.

For Jaiye, a frontend developer working in commerce, Paystack has the mobile edge.

He says Paystack loads faster, feels smoother on weaker networks, and gives developers more control over loading states, callbacks and error handling. Flutterwave offers broader payment coverage, especially for businesses serving customers outside Nigeria, but can sometimes feel heavier on mobile.

“On bad network days, that difference is very noticeable.”

Jaiye also points to slow bank-transfer confirmation as a major checkout problem. Customers pay, then sit on a vague “waiting for payment” screen with little feedback.

His fix is simple: faster transfer confirmation, clearer error messages, an easy retry button, and a Nigeria-first checkout that prioritises bank transfer and USSD where appropriate.

On flexibility, his choice is clear:

“Paystack, hands down, from my own experience integrating both gateways.”

So far, Paystack gets the stronger recommendation, especially for businesses that care about speed, documentation, and settlement.

But the real answer is not just that Paystack is better or Flutterwave is better.

A good payment provider can still create a bad checkout experience if the merchant’s system is poorly built. A customer can pay successfully and still become a customer-support problem if the order does not update. A customer can also abandon checkout if the process feels confusing, slow, or unsafe.

So before founders argue over payment gateways, they should ask:

Is our checkout built to handle failed, delayed, pending, and duplicated payments?

Don't assume checkout works because one test payment succeeded.

Use one clear payment flow for customers, and keep backup providers behind the scenes where possible.

Treat bank transfers seriously because Nigerian customers are increasingly comfortable with them.

Do not mark an order as paid just because the customer reached a success page.

Use webhooks, but verify transactions independently.

Make sure support can trace payments using the order reference, provider reference, or customer details.

Test what happens when payment fails, arrives late, or stays pending.

Most importantly, reduce every unnecessary step between cart and confirmed payment.

Till next time,

Team Thrive

_____________________________________________________

A few lines to keep you motivated, going, and on top of the world