CheapoTire.com Inventory Application

Need an application for my used tire shop to track inventory of used tires. App will ask whether we are adding or removing a tire from inventory, then ask things like size of tire, condition of tire, price of tire, etc and allow me to print a QR code to stick on the tire to track it. Want to be able to scan QR code on tire to verify inventory. If tire is sold to a customer, want to be able to scan QR code on tire and check "Tire Sold" so it takes it out of inventory.