Tweetycam uses FHSS technology. This means that our product is a wireless device that works without WiFi or that does not rely on WiFi to transmit signals. In other words, our product does not use Wifi and does not have a phone app. Tweetycam's secure system was designed so that hackers are unable to intercept the communication between the cameras and the monitor. Instead of an app you get peace of mind knowing you and your baby are fully protected at all times.