Welcome to the Community, @McMinnDSC.
If you'd like to change your Industry type, please note that you can't process successfully on the app. However, you can easily log into your QuickBooks Online account using your mobile web browser and follow the instructions provided by our expert member @kamruzzaman.
If you're interested in exploring the app features available on the QBO mobile app, we recommend checking out this article: Compare mobile app features.
Please hit the reply button if you need further assistance with this concern. The Community forum is always here to help you.