Documented connections

Square integrations

Products with a documented integration to Square. Verify requirements, supported plans, and current capabilities with the vendors before purchasing.

Mailchimp

Marketplace integration

Mailchimp-built integration listed on Square's official App Marketplace, syncing Square customer/sales data with Mailchimp email marketing.

Last verified September 25, 2026.

Marketplace integration

Third-party 'Commerce Sync' app listed on Square's official App Marketplace that transfers Square sales data into QuickBooks Online/Desktop.

Last verified September 25, 2026.

Marketplace integration

Third-party 'Square Data Sync' app listed on HubSpot's official App Marketplace connecting Square e-commerce data to HubSpot.

Last verified September 25, 2026.