Smaart not opening or functioning properly on macOS

Smaart not opening or functioning properly on macOS

Please note: This following issues have been seen mainly on macOS Mojave (10.14) and Catalina (10.15), and this is reflected in this article. For permission issues regarding Windows devices, please email us at for further assistance. If Smaart is asking for activation after updating/upgrading, and you are receiving an error message (such as Error 523), please visit this support article.

The following support article is covering the following issues that occur when first installing Smaart or after updating/upgrading to macOS 10.14 or newer; please make sure to check out our other support articles in your question is not answered here:

  • Smaart no longer opens (No splash screen)
  • Smaart no longer sees input (but has output)
  • Smaart does not work with Automation
  • Cannot use Smaart API
  • Smaart displays a message about permissions when trying to open/after opening

macOS Mojave and Catalina contain new security features than may unintentionally limit certain functionalities of Smaart. When first opening the application after updating the operating system, a dialog message will appear (similar to the one below) requesting access to a specific permission:



By clicking "Don't Allow", this prevents Smaart from accessing that information and functioning properly. Please make sure that, whenever a dialog similar to this appears, you click "Ok". If you need to change these permissions at any time, please navigate to System Preferences Security & Privacy > Privacy, and check/uncheck the box next to Smaart. Typically, Smaart will need permissions for: Full Disk Access, Automation, Microphone (audio input), and Accessibility.

If you have any questions about the permissions Smaart requests, please let us know.

Please note that you will need to click the lock in the bottom-left corner before you can make any changes to the system permissions.

If you have any further questions or issues, please submit a support ticket or email for further assistance. Be sure to include account information for verification as well as any screenshots or screen recordings for us to provide faster, more efficient troubleshooting!

To Contact Rational Acoustics Support:
Submit a Ticket Here or Email us at