From the home screen in the App Pick "+ ADD ITEM"
The item window will pop up. You can enter a name, price, barcode, color tag and tax. If you have our Datio POS base station, you can also just scan an item to get to this menu and the barcode will pre-populate.
This is what the menu will look like after entering the information. Your options now are add item to the cart and save, save only, or just add to cart and don't save.
To edit or delete an item just press and hold on the item then you can edit or delete.