A. Check the app settings to see if there is an option to enable text-to-speech or audio features. If available, enable it to allow the app to read text aloud.
B. If the app does not have built-in audio features, consider using the iPhone's accessibility features. Go to Settings > Accessibility > Spoken Content and enable 'Speak Screen'. This allows you to swipe down with two fingers from the top of the screen to have the text read aloud.