I figured out the issue. The app is not distributed with the correct permissions set - it is not set to executable. To fix this, I had to go in to the .app folder using the terminal and manually fix the permissions on CubikUpdater.app/Contents/MacOS/CubikUpdater to include execute permissions.

I am having the same issue - unzipping on the desktop and moving to the applications folder is nonsensical, this literally will have no effect (and it didnt). Macs an run apps from anywhere, there is nothing special about the applications folder.

Is this app compiled 64-bit? The newer versions of ...