If you run a small business, chances of you have done business through Square. With the WooCommerce Square plugin, you can fully integrate the service into your site. It offers Square to WooCommerce and WooCommerce to Square synchronization. It can sync products, categories, images, and inventory.
Users will be able to sync data automatically or manually. The plugin works with simple and variable products. Your customers will be able to pay for their orders with credit cards. Admins have the option to issue refunds, create customer profile in Square, and charge later after an authorization.
In order to use WooCommerce Square, you will need SSL enabled on your site. FantasticPlugins is the developer behind this plugin.