The first step in using iCheckout POS is setting up your iYap Business 360 account. Once you’ve signed up, it’s possible to use Liquid Cash iCheckout POS without purchasing any additional hardware. You can key in transactions on your phone using the POS app or through one of our POS devices. If you set up Liquid Cash, you can also set up QR codes and online payments. However, if you plan on accepting in-person payments, we recommend purchasing at least one of our POS machines.