Americans wait 900,000,000 hours every year waiting in line. Imagine going to Costco, Walmart, or any store and never waiting in line...We're working on that. Groc is a mobile self-checkout app for smart phones. Groc helps in-person shoppers by skipping the waiting line, avoid the frustrating self-checkout kiosk. Shoppers scan their own products while shopping and pay to leave. Coming to your favorite store soon.