Adyen vs Square Appointments Comparison: Reviews, Features, Pricing & Alternatives in 2026

Detailed side-by-side comparison to help you choose the right solution for your team

Updated Apr 2026 8 min read

Adyen

0.0 (0 reviews)

Adyen is a global financial technology platform that helps you accept payments, protect revenue, and control your finances through a single integrated solution for online, in-person, and app-based transactions.

Starting at --
Free Trial NO FREE TRIAL
VS

Square Appointments

0.0 (0 reviews)

Square Appointments is an all-in-one scheduling and point-of-sale software that helps service-based businesses manage online bookings, process payments, and track customer relationships from a single integrated platform.

Starting at Free
Free Trial NO FREE TRIAL

Quick Comparison

Feature Adyen Square Appointments
Website adyen.com squareupspace.com
Pricing Model Custom Freemium
Starting Price Custom Pricing Free
FREE Trial ✘ No free trial ✘ No free trial
Free Plan ✘ No free plan ✓ Has free plan
Product Demo ✓ Request demo here ✓ Request demo here
Deployment saas mobile cloud mobile
Integrations Salesforce Adobe Commerce SAP Microsoft Dynamics 365 Oracle NetSuite Workday BigCommerce Mirakl Zendesk Instagram Facebook Google Calendar QuickBooks Xero Wix WordPress Homebase
Target Users mid-market enterprise solopreneur small-business mid-market
Target Industries retail hospitality ecommerce beauty wellness professional-services
Customer Count 0 0
Founded Year 2006 2009
Headquarters Amsterdam, Netherlands San Francisco, USA

Overview

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Adyen

Adyen provides a unified platform that handles your entire payment flow from start to finish. Instead of managing separate gateways, risk tools, and processors, you can run your whole operation through one infrastructure. This setup gives you a single view of your customers across online stores, mobile apps, and physical locations, making it easier to offer flexible shopping experiences like buying online and returning in-store.

You can accept hundreds of local payment methods globally while using built-in data tools to recognize loyal customers and block fraudsters. The platform is built for growth, allowing you to expand into new markets quickly without changing your technical setup. It is particularly effective for mid-market and enterprise businesses that need to simplify complex global payment operations and improve authorization rates.

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Square Appointments

Square Appointments is a versatile scheduling solution designed to help you run your service-based business more efficiently. Whether you are a solo practitioner or managing a large team, you can automate your calendar and let clients book their own sessions 24/7 through a custom booking website or social media integrations.

The platform goes beyond simple scheduling by integrating a full point-of-sale system directly into your workflow. You can accept payments, manage inventory, and track customer history without switching between different tools. It eliminates the headache of no-shows by allowing you to require prepayments or cancellation fees, ensuring your time remains profitable and your schedule stays full.

Overview

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Adyen Features

  • Unified Commerce Connect your online and in-store sales data in one place to give your customers a truly frictionless omnichannel experience.
  • RevenueProtect Use data-driven risk management tools to identify and block fraudsters while ensuring your legitimate customers enjoy a smooth checkout.
  • Global Acquiring Access local payment processing in markets worldwide through a single integration to improve your authorization rates and lower costs.
  • In-person Payments Accept payments at the point of sale using modern terminals that support contactless, mobile wallets, and local card schemes.
  • RevenueAccelerate Optimize your payment flow automatically with smart routing and messaging that recovers declined transactions and boosts your bottom line.
  • Payouts Send funds to your partners or sellers in real-time with automated global payouts that simplify your marketplace operations.
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Square Appointments Features

  • Online Booking Site. Create a professional, custom-branded booking website where your clients can view your availability and book services anytime.
  • Automated Reminders. Reduce no-shows by sending automated text and email reminders to your clients before their scheduled appointments.
  • Integrated Payments. Process credit cards and digital wallets instantly with built-in payment processing that links directly to your appointments.
  • No-Show Protection. Protect your time by requiring clients to enter a credit card on file or pay a deposit upfront.
  • Staff Management. Manage multiple staff calendars, set individual permissions, and track performance metrics for your entire team in one place.
  • Customer Directory. Keep detailed profiles of your clients including their appointment history, personal preferences, and previous purchase records.

Pricing Comparison

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Adyen Pricing

S

Square Appointments Pricing

Free
$0
  • For a single location
  • Custom booking website
  • Automated SMS & email reminders
  • Unlimited staff accounts
  • Square POS integration
  • Credit card on file for no-shows

Pros & Cons

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Adyen

Pros

  • Consolidates all payment channels into one single dashboard
  • High authorization rates thanks to direct local acquiring
  • Extensive support for local payment methods worldwide
  • Detailed data insights help you understand customer behavior

Cons

  • Technical setup requires significant developer resources
  • Not cost-effective for very small businesses
  • Customer support can be slow for non-enterprise accounts
A

Square Appointments

Pros

  • Seamless integration with the broader Square ecosystem
  • Extremely easy setup for non-technical business owners
  • Generous free tier for solo practitioners
  • Reliable mobile app for managing bookings on-the-go

Cons

  • Customization options for booking sites are limited
  • Customer support can be difficult to reach
  • Advanced features require moving to paid tiers
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