13 tools state they integrate with Square. Each line below quotes what we read on the vendor’s own site, so you can check the claim before you rely on it.
A no-code drag-and-drop online form builder for collecting submissions, payments, signatures, and leads, with a large template library and 150+ integrations.
What we read: Square heads the payment integration list.
Online forms and lead capture tools
Modern form, survey and quiz builder with logic, integrations and a generous free tier.
What we read: Generates leads and product recommendations via Square
Online forms and lead capture tools
Free-to-start appointment-scheduling software with a booking page and reminders.
What we read: Square is a supported payment processor on both plans
Commerce & Operations / Scheduling & Appointments
Appointment-booking system for service businesses like salons, clinics, and studios.
What we read: Listed among the supported online payment systems on the payments feature page
Commerce & Operations / Scheduling & Appointments
A widely-used email and SMS marketing platform with automation, audience segmentation, and AI-assisted content for small businesses and e-commerce.
What we read: Square listed in the most popular integrations menu
Email marketing and automation platforms
Free, open-source ecommerce plugin that turns any WordPress site into a fully customizable online store.
What we read: Square named among supported payment processors
E-commerce and online storefront builders
Email marketing platform with strong automation and a built-in CRM for customer experience.
What we read: Named in the standard ecommerce integration row
Email marketing and automation platforms
Squarespace-owned appointment-scheduling platform with client self-booking, intake forms, packages, memberships, and a HIPAA option.
What we read: Square payment integration for online and in-person payments
Commerce & Operations / Scheduling & Appointments
Document automation and e-signature platform for proposals, quotes, and contracts, with templates, CRM integrations, and workflows.
What we read: Square listed among the payment gateway integrations
Commerce & Operations / E-signature & Documents
Free-friendly appointment-scheduling tool for small businesses, with online booking pages, calendar sync, and class/resource management.
What we read: Square invoicing and payments are listed from Starter
Commerce & Operations / Scheduling & Appointments
Global shipping platform giving merchants discounted rates, duties calculation and multi-courier tracking.
What we read: Square is listed among supported eCommerce store integrations
Shipping aggregators and order fulfilment tools
Popular domains and hosting provider with shared hosting, website builder, and email.
What we read: Square Online Checkout listed as a payment integration option
IT, Security & Hosting / Cloud Hosting & Infrastructure
Online form builder for collecting enquiries and leads, with native Zoho CRM routing.
What we read: Square is listed among payment gateway integrations
Online forms and lead capture tools