You can generate Excel and PDF report from both the app and web version. We would suggest you to use the web version to generate report because of the much bigger screen and more user friendly UI.
But from the app, you can quickly submit a report request and see the result if you prefer. Please simply open the side menu and then choose "Reports" to open the Report screen like the following:
Then click the upper right corner "+" to add a new report, like the following screen:
When the report is finished, you will get notified by email:
1. You can view the report by clicking the link in the email
2. You can forward the email to anyone you want to share your report with
3. You can also view the report from this Reports screen.