I see you want to keep track of the sales bar chart each month, @NC22. I'd like to share some insights when accessing the chart through the mobile app.
We haven't recently changed the feature in any way. Currently, you can only run the Profit and Loss and Balance Sheet reports while logged in to the mobile app. Your ability to view the necessary data is therefore unavailable.
I advise using the mobile browser to log in to your QuickBooks Online company. You can then view the reports you want to see.
Here are some helpful references you can browse to find out the list of reports and features available in QBO.
You can always get back to us if you have other concerns with this matter or QuickBooks. We're here to back you up 24/7. Take the best care!