Answer Your Door. Anywhere. Anytime with the Yale Look Door Viewer with WiFi. See: and speak to: visitors at your door from anywhere using the free Yale Look app for iOS or Android. The Look Door Viewer has a motion detector and doorbell so you’ll receive an alert on your smartphone when someone is at the front door. Engage in two-way communication with your visitors to let them know when you’ll be home and view a timeline history with photos and video to see recent activity.