Catalina Compatible ADU Beta Download

The version of the Air Direct Utility (ADU) linked below has been developed to be compatible with tethering software already running on MacOS Catalina. If you are currently running MacOS High Sierra or MacOS Mojave, we do not recommend participating in the Beta at this time. See FAQs below before downloading and installing the software.

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MacOS Catalina Beta


AIR Direct Utility

See FAQs below, including details on known bugs and compatibility issues, before downloading and installing the software.
Using both MacOS and Windows devices? Download the Windows Beta ADU here.


  1. Download the software linked above.
  2. Follow the instructions to install the ADU on your computer. A firmware update will be required on your Air Direct unit. Please make sure you have a fully charged battery prior to proceeding or are using the DC input for power.
  3. Once installed, we recommend restarting your computer.

Essential Resources:

Need help? Call: +1 888-854-6565+1 888-854-6565 or, contact customer service