Report cards can be accessed by logging into the web version of the parent portal. Would you please try logging into your account and check if you can see the report card in the dashboard?
The grades, grading terms, GPAs, and various other features that display on the mobile app are configured on a school-by-school basis by your school district’s PowerSchool administrators.
If you don't see the report card, this feature may not set to be displayed in the mobile settings for your school, so you would need to reach out to the district directly. Your district’s PowerSchool administrators can contact support directly if further assistance is needed to make changes.