So you agree with their human interface guidelines, then? "You can help everyone feel welcome in your app by avoiding unnecessary references to specific gender

So you agree with their human interface guidelines, then? "You can help everyone feel welcome in your app by avoiding unnecessary references to specific genders. [...] Most apps don’t need to know a person’s gender, but if your app requires this information — such as for health or legal reasons — consider providing inclusive options, such as nonbinary, self-identify, and decline to state." For example, if the app is a period tracker the rec here is to not assume everyone using it identifies as a woman.