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ACI Worldwide logo

ACI Worldwide

Real-time payments

A payment systems software company powering infrastructure for banks and payment processors globally. ACI Worldwide enables real-time payment networks including FedNow, Zelle, and UK Faster Payments, processing over 671 billion transactions annually. Built for financial institutions requiring enterprise-grade payment switching and fraud management.

Visit ACI Worldwide
VS
Paidy logo

Paidy

BNPL Japan

Japan's leading buy now, pay later service (now owned by PayPal) enabling purchases with just an email and phone number. Paidy offers deferred payment and installment options, widely adopted by Japanese e-commerce including Amazon Japan and major retailers.

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Detailed Comparison

Side-by-side feature breakdown

Fees
ACI Worldwide

Contact for pricing

Paidy

2.5-3.5%

Category
ACI Worldwide
traditional
Paidy
traditional
Available Regions
ACI Worldwide
North AmericaEuropeAsiaLatin AmericaOceaniaAfrica
Paidy
Asia
Key Features
ACI Worldwide
Enterprise
Instant Payments
Paidy
Startup Friendly
SDKs & Libraries
ACI Worldwide

3 Available

Paidy

4 Available

Payment Methods
ACI Worldwide

22 Supported

Paidy

3 Supported

Common Ground

Shared Regions

Asia

When to Choose ACI Worldwide

Choose ACI Worldwide if you need features like Enterprise or Instant Payments, or your business operates in North America or Europe, or you want a broader feature set. With fees of Contact for pricing, it's ideal for businesses focused on real-time payments.

When to Choose Paidy

Choose Paidy if you need features like Startup Friendly. With fees of 2.5-3.5%, it's ideal for businesses focused on bnpl japan.

Frequently Asked Questions

What is the difference between ACI Worldwide and Paidy?

ACI Worldwide is best for real-time payments, while Paidy is best for bnpl japan. ACI Worldwide charges Contact for pricing and Paidy charges 2.5-3.5%. They differ in supported features, regions, and payment methods.

Which is cheaper, ACI Worldwide or Paidy?

ACI Worldwide charges Contact for pricing while Paidy charges 2.5-3.5%. The best value depends on your transaction volume, business type, and required features. Compare their full fee structures for your specific use case.

Can I use both ACI Worldwide and Paidy together?

Yes, many businesses use multiple payment providers for redundancy, regional coverage, or to offer more payment methods. ACI Worldwide and Paidy can complement each other depending on your needs.