Receiving multiple devices screens is a premium feature. You need to upgrade to AirDroid Cast Premium to use it.
After receiving the screen successfully, you will see the content below:
Click the Open new window button then you can start to receive another screen. If you still don't know how to start receiving the screen, check this: AirDroid Cast Desktop Client Overview
- The WLAN feature supports receiving up to 5 device screens(including iOS and Android devices) on the computer(Windows and Mac) at the same time. The AirPlay feature supports receiving up to 4 iOS device screens on the computer(Windows and Mac) at the same time. The Cable feature can only receive one device screen on the computer at a time. Receiving the screen of one computer to another computer(mirror macOS, mirror windows) only supports receiving one computer at a time.