At the moment, you can only view two reports when you log in using the mobile application. The reports are Profit and Loss and Balance Sheet.
Instead, let's open your QBO account using the browser on your phone. Then, run the A/R and A/P Aging Detail reports by following these steps:
I'll be sure to pass this information to our product engineers for a feature request.
Let us know if there's anything else you need help with QuickBooks reports. Thanks.