Mollie 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

Mollie

0.0 (0 reviews)

Mollie is a payment processing software that helps businesses accept online payments, manage subscriptions, and streamline financial operations through a single integration for global and local payment methods.

Starting at Free
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 Mollie Square Appointments
Website mollie.com squareupspace.com
Pricing Model Subscription Freemium
Starting Price Free 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 Shopify WooCommerce Magento BigCommerce PrestaShop Salesforce Wix Xero QuickBooks Zapier Instagram Facebook Google Calendar QuickBooks Xero Wix WordPress Homebase
Target Users small-business mid-market enterprise solopreneur small-business mid-market
Target Industries beauty wellness professional-services
Customer Count 0 0
Founded Year 2004 2009
Headquarters Amsterdam, Netherlands San Francisco, USA

Overview

M

Mollie

Mollie is a flexible payment platform designed to help you grow your business by simplifying how you accept money online. Instead of managing multiple contracts with different banks, you get a single solution that supports major credit cards, digital wallets like Apple Pay, and local European methods like iDEAL and SEPA. You can integrate the checkout experience directly into your website or use pre-built plugins for popular e-commerce platforms.

The software focuses on transparency and ease of use, providing you with a clear dashboard to track transactions, handle refunds, and manage payouts in real-time. It scales with your volume, offering a pay-as-you-go model that ensures you only pay for successful transactions. Whether you are a small boutique or a high-volume international retailer, you can customize the checkout flow to match your brand and boost conversion 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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Mollie Features

  • Multi-Method Checkout Accept all major global and local payment methods including credit cards, PayPal, and Apple Pay through one integration.
  • Mollie Components Keep customers on your site during checkout by embedding secure credit card fields directly into your own UI.
  • Recurring Payments Set up subscription billing and automated collection for memberships or repeat orders with ease.
  • Real-time Dashboard Track your sales, manage refunds, and export financial data for accounting from a single, intuitive mobile-ready interface.
  • Payment Links Create and send secure payment links via email, SMS, or social media to get paid instantly without a website.
  • One-Click Checkout Enable returning customers to pay with a single click by securely storing their preferred payment details.
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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

M

Mollie Pricing

Standard Pay-per-transaction
$0
  • No monthly or setup fees
  • Access to all payment methods
  • Free Dashboard and mobile app
  • Automatic payouts
  • Standard fraud monitoring
  • Multi-currency support
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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Mollie

Pros

  • Quick account approval and onboarding process
  • No monthly fixed costs or hidden fees
  • Excellent documentation for developers and easy setup
  • Clean and user-friendly dashboard interface
  • Wide range of European local payment methods

Cons

  • Customer support response times can vary
  • Strict account verification requirements for some industries
  • Transaction fees higher than some direct bank integrations
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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