Square vs Adyen

Choose the right payment system for your business.

How Square works

Square helps businesses get set up quickly so they can start taking credit and debit card payments. Businesses can utilise a wide range of POS software and hardware from Square including an online store builder, marketing tools, appointments software, team management, inventory management, business loans and more.

For peace of mind, Square payments are PCI compliant with no hidden fees or lock-in contracts so businesses can hit the ground running and do what they do best. APIs and SDKs are free for developers to use to create omnichannel experiences and leverage functionalities. For those without coding experience or who like to keep it simple, Square App Marketplace lets businesses get connected to the most popular apps quickly and easily.

How Adyen works

Adyen offers a single platform to collect payments online, in person and across multiple channels. Their system allows customers to pay via a web browser, on any mobile device with apps or via a payment link. They charge a fixed processing fee plus a fee depending on what payment method is used. They provide a range of portable, countertop and self-service payment terminals.

Everything you need to run your business from anywhere at any time.

Customer demands are changing. The easy-to-use, all-in-one payment system from Square gives you the flexibility to meet their needs head-on and provide a streamlined, first-class customer experience from start to finish.

Customer relationships

Keep new and existing customers coming back with tools that grow your business.

Omnichannel solutions for your business

Business solutions to sell anywhere and get paid anytime.

Take payments anywhere

Accept in-person or online payments with Square.

Integrate with Square APIs

Leverage our APIs for online, in-app and in-person payments.

How Square compares to Adyen.*


Trustpilot scores SQUARE: 4.0 ADYEN 1.4
UK card online payments cost: 1.4% + 25p 10p + fee determined by payment method
International card online payments cost: 2.5% + 25p 10p + fee determined by payment method
In-person payments cost: 1.75% for all cards Interchange fee plus 10p for Visa & Mastercard and 3.95% + 10p for American Express
Next-business-day transfer as standard:
Instant transfers – access funds in minutes (for a fee):
Custom pricing:

Features and solutions

Free POS App:
All-in-one till system with customer display and built-in software:
Physical and eGift cards:
Offline mode: Yes, with Square Terminal and Square Register
Free online store:
Website templates:
Payment links:
Bespoke retail POS system:
Bespoke restaurant POS system:
Loyalty programme software:
Team management:
Inventory management:

No hidden fees or contracts.

We don’t hide anything from you. Our fees are simple, clear and easy to understand so you’ll always know what you’re paying. No long-term contract and you can cancel at any time. And we’ll never charge you for chargebacks.

Learn more about Square pricing >

Security for your peace of mind.

Industry-leading security keeps your customers safe and protects your sales. We make compliance easy so you and your customers never have to worry. Square software maintains Payment Card Industry Data Security Standards (PCI DSS) and handles all PCI compliance instead of merchants.

360-degree integrations.

Square gives you the flexibility to choose the best solution for your business. Set up your online store through Square, or if you already have an existing eCommerce, you can easily add Square payments with third-party integrations from Square App Marketplace or by using Square APIs.

Learn more about Square App Marketplace >

Hardware for selling anywhere.

We design and build our hardware in-house, so it all works together seamlessly.

Square Reader

Take contactless payments anywhere with a card reader that pairs directly with your device.

Square Terminal

Take payments, print receipts and run your business with a powerful and portable payment terminal.

Square Register

Get an all-in-one POS register with a dedicated customer display that lets you start selling straight out of the box.

Square Stand

Turn your iPad into a point of sale and take every type of payment.

Start with Square today.

Business and payments solutions that work for you.

Solutions for your business.

Point-of-sale solutions

The flexible and customisable POS system built for UK businesses of all shapes and sizes.


Send digital invoices, accept and track payments.

Online booking software

An app that turns your device into an appointment scheduling powerhouse.

Marketing tools

Reach more customers and automate your campaigns.

Frequently asked questions

(by people thinking about switching from Adyen to Square)

Resources to keep you up to date and on top.

It’s your business. We just want to help you keep doing it.

How Square works

Square connects all sides of your business with easy-to-use tools designed to give you time to focus on what you do best.

Business types

Square business software offers solutions that are essential for all business types, no matter what shape or size.

Compare Square

Learn more about how Square stacks up against other payment providers and business solution tools.

*Competitive data on this page was collected as of 8th May 2023 and is based on information found on https://www.adyen.com/en_GB/ This information is subject to change or update without notice. Square does not make any representations as to the completeness or accuracy of the information on this page.