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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.

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Adyen logo

Adyen

Platforms & Marketplaces

A global payment platform designed for enterprise businesses and high-growth companies. Adyen provides end-to-end payment processing with unified commerce capabilities, supporting 250+ payment methods across online, mobile, and in-store channels. Known for serving large marketplaces and platforms that need a single integration for global operations.

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Detailed Comparison

Side-by-side feature breakdown

Fees
ACI Worldwide

Contact for pricing

Adyen

Interchange++ (€0.11 + interchange)

Category
ACI Worldwidetraditional
Adyentraditional
Available Regions
ACI Worldwide
North AmericaEuropeAsiaLatin AmericaOceaniaAfrica
Adyen
North AmericaEuropeAsiaOceaniaLatin America
Key Features
ACI Worldwide
Enterprise
Instant Payments
Adyen
Instant Payments
Enterprise
SDKs & Libraries
ACI Worldwide

3 Available

Adyen

7 Available

Payment Methods
ACI Worldwide

22 Supported

Adyen

22 Supported

Common Ground

Shared Regions

North AmericaEuropeAsiaLatin AmericaOceania

Shared Features

EnterpriseInstant Payments