Square Online for WooCommerce POS

Most people first encounter Square through its iconic white card-reader. What is less known is that Square also has a full online payment product that any WooCommerce site can use through the Square for WooCommerce plugin. That plugin is what Oliver POS uses: at the register, Oliver opens Square's hosted checkout inside the in-POS browser view, the customer pays, and the order syncs back to WooCommerce.

It's slightly weird because Square has its own POS, and we're explicitly not using it. The reason a retailer might still want Square at the Oliver POS is that Square's rates are competitive and a merchant might already have a Square account from a previous setup. Instead of migrating the merchant account, Oliver can simply use Square's online checkout as the payment interface at the counter — letting Square process the money while Oliver runs the store, the inventory, the WooCommerce sync, and the staff workflow.

Square owns Cash App, and Cash App Pay is available as a method through the Square WooCommerce plugin. In the US, that means Oliver POS makes Cash App Pay available at the counter whenever a Square merchant has it enabled — useful for younger shoppers who use Cash App to pay friends and prefer it over typing in card details.

Choose Square at the Oliver POS if you have an old Square account you don't want to close, if you specifically need Cash App Pay, or if you're in a market where Square's online rates are better than the local alternatives. If you're starting from scratch with no processor preference, Stripe Checkout is usually a smoother fit for a WooCommerce-first setup.