Welcome to the Community, @app-le.
I understand you're having issues with estimates after updating your QuickBooks mobile app.
It is an unusual behavior of your app. Thus, I recommend resetting your app data to refresh your connection.
Here's how:
- Go to the Menu ☰.
- Select Help & Feedback.
- Click Refresh Data.
- Then select Refresh.
If you still have the same issue after refreshing the data, you can uninstall and reinstall the app. Then restart your phone. Refer to this article for the steps: uninstalling and reinstalling the app.
Additionally, you can access your QBO account on your mobile device when using a browser. To know the compatible browser you can use, please read this article: QuickBooks Online access for mobile devices.
Let me know if you have questions about the QuickBooks app. I'm always here to help. Have a great day.