When first logging In you should get a screen like below prompting you to enter a passcode

Here each employee will enter in their own unique pin to sign in 

After signing in you should be greeted by a screen like this where you can see all of the different categories that items are grouped in , 

You can also search for items by its tag number by going to the all items section 

And entering the tag to find your item

Once the customer is ready to check out tap the checkout button at the bottom right

Here you will be able to ring the customer with whatever option they choose to pay with (Google Pay, Samsung Pay, Apple Pay, etc are supported)

(Customer View)

Once Transaction is complete you will get to a screen like this 

Here you can print receipt, save the customer details for future reference, or start a new sale