Iom Driver – OS X App Nap Issues



  • Wild Divine programs having difficulty connecting to the iom Driver.
  • While using Wild Divine programs, heart rate stabilizes and doesn’t vary or change over time.


Since the introduction of OS X 10.9 (Mavericks) Apple has introduced a new power saving feature called App Nap. App nap detects applications that aren’t visible to the user, and puts them into a lower power mode. When the iom Driver is put into this mode, it sometimes doesn’t detect incoming requests, or doesn’t process biodata the way that it normally does. App Nap can be disabled on a per program basis, and the solution is to disable it for the iom Driver.


  1. If the iom Driver is running, close the application by selecting Quit on the pull down menu of the IOM Driver (green butterfly) up in the menu bar.
  2. Go to the Applications folder
  3. Select the IOM Driver application and press command + i on your keyboard for Get Info or control-click to get the contextual menu where you can select Get Info. You should see this picture below on the left hand side of your screen.
  4. getinfo

  5. Select Prevent App Nap, and close the window.
  6. Start the iom Driver. At this point it should function as expected.

Related Articles

If you are continuing to have problems, make sure the IOM driver application is “allowed” in your firewall (under Security & Privacy) as well if you have it enabled. For further information on your firewall in OS X, please see this ARTICLE.


Contact Support

If you are still experiencing issues with your IomPro Sensors you can contact us at Technical Support for further assistance.

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