The trial version of Reflector 4 is great for testing, but it includes watermarks and timed sessions. Entering a valid license key provides: No More Watermarks:
Note that a single key typically registers only one computer at a time. help.airsquirrels.com Key Features of the Full Version Description Wireless Mirroring Supports AirPlay, Google Cast, and Miracast connections. Multiple Devices Mirror and record multiple devices simultaneously. Screen Recording Record mirrored screens with high-quality audio. reflector 4 licence key full
The developers offer a 7-day free trial that includes all features. This is the best way to test if the software meets your needs before buying [4]. The trial version of Reflector 4 is great