Catalina iOS 10.15

How to Check for 32-bit Apps on Mac

  1. Click the Apple icon in the top left corner.
  2. Select About This Mac.
  3. Select System Report…

In the left column of the System Report, scroll down to the Software section. Then select Applications.

Click 64-bit apps, to sort the apps.

Click and drag the lower right corner of the screen to expand the window, so that the 64-bit apps column appears.