Invoices can be managed separately in the Square Invoices app which is free to use. Payment methods: Apart from taking physical cards, you can key in card details manually, send email invoices or charge a card on file (attached to a customer profile), or take cash. This way, you can keep track of stock and analyze sales of e.g. Product library: Add photos, item categories, variants, item modifiers, prices, barcodes, stock levels and more to individual products. Here are some of the main Square POS app features: For example, certain inventory management functions are only available on iPad. The app runs on both iOS and Android smartphones and tablets, but looks best on iPad. The interface is extremely intuitive and easy to use, and the features are on par with many fee-based POS systems. Square Point of Sale is unparalleled by any other free POS system out there. The Square Point of Sale app (formerly called Square Register) includes most, if not all, the tools needed to run a business. Square does a lot more than credit card processing.

The square register app