I don’t really know how to check this. I know that if the organization behind an app has good practices, then I should be able to trust their apps. Otherwise, I don’t know how to trust anything on the app store.
For example, I want a screen recorder, but I don’t know where to find a non invasive one.
There is not much you can do with a Fisher Price phone. Android has had native screen recording since 5.0 Lollipop.