A customer check-in system includes a server computer of a store including a processor programmed to install a customer application on a customer mobile computing device, install an associate application on an associate mobile computing device, receive a signal from the customer device including a unique customer identification, an indication that the customer has checked-in to pick up an order, and a customer-selected time slot for picking up the order, obtain tracking information of a current location of the customer device, utilize the tracking information to estimate a travel time remaining until the customer device arrives at the store, transmit a signal to the associate device including the customer identification and a first estimated time remaining, and transmit at least one signal to the associate device including an updated estimated time remaining and an instruction to display a graphical representation of the updated time remaining on the associate device.