About a year ago, a mobile app called Tello launched, making it easy for users to quickly rate customer service interactions in real time. Tello could tie ratings to a store using a customer's physical location and let them give a thumbs-up or thumbs-down to individual employees working within that place, providing instant feedback on their transaction. While the app allowed users to quickly see ratings of different retail locations, and in some cases avoid surly employees, it was only somewhat helpful to the business owners themselves for evaluating interactions and improving customer service.
