A free app for Android, by David Downs.
QTap is a food ordering and payment app that allows you to place orders from your smartphone, without having to queue up at a restaurant or retail shop. The app connects to a venue's online ordering system and displays a list of available items. Once you have selected an item, it will be added to your list of ordered items, and you can pay for it via the app. The app also allows you to browse the menu, place orders, and pay for food.
QTap is the most convenient way to order food online, and the most affordable way to order alcohol.
