Why does the desktop app not work?

Hi there, hswynne.

Welcome to QuickBooks Community. May I ask if you encounter any error messages while using the QuickBooks Online desktop app? I appreciate any further details so I can share accurate solutions.

For now, performance issues in QuickBooks Desktop App are resolved by doing basic troubleshooting steps. Let's start by resetting the app data to clear the cache and refresh it into its default state.

Here's how:

1. Click the Help menu.
2. Click Reset App Data.
3. Close the app when the process completed.
4. Be sure to right-click the app and Run as Administrator when re-opening.

If the issue still persists, I suggest uninstalling/reinstall the app. You can get the detailed steps in this article: QuickBooks App for Windows and Mac: General support.

If the problems continue to occur, you can access your QuickBooks account through a supported web browser. This way, you can proceed with any task that you want to perform in your account.

Please refer to this article to see a table chart that contains a list of different mobile app features that are supported on mobile devices: Compare mobile app features.

Please keep me posted on your results with this here, you can always get back to me if there's anything else you need with QuickBooks App. I'll be around to help.