Hi @RobR62,
Welcome to the Community! Let me share some information about our Desktop App for QuickBooks Online.
The QuickBooks Online Windows and Mac desktop apps are no longer supported as of April 20, 2021. Once your browser no longer supports your app, we recommend accessing QuickBooks Online through your preferred browser. There are no new updates or technical support after this date.
For more information about the discontinuation, check out this link: QuickBooks Online Mac and Windows Desktop App update. Alternatively, you can download the QuickBooks Online mobile app to access your account using an app.
You can also access QuickBooks on your iOS (Apple) or Android devices browser. I've included an article about the recommended specs for the best results when using a mobile device: QuickBooks Online access for mobile devices.
Let us know if you still have further concerns about accessing QuickBooks by dropping a response. Take care, and have a great day ahead.
