Hi there, @juce. Welcome to the Community.

In the QuickBooks sole trader/preneur mobile app, you can create products and services, but you can't view the full list. To access it, you need to log in through a browser.

Please note that you generally can't permanently delete a product or service if it has already been used in a transaction (such as an invoice or sale). Instead, you will make them Inactive to clean up your list.

Here's how:

1. Go to the Get paid.
2. Select Products and services.
3. Locate the products you want to make inactive.
4. In the Action column, click the drop-down arrow and choose Make inactive to confirm.
   
    

For more information on how to track your products and services, see this article for your reference: Add Product and Service Items to QuickBooks Online.

If you have any other questions or concerns related to QuickBooks, please feel free to comment below.