How do i create an Add To Calendar link for apple devices?

I am creating Add To Calendar links for Google, Outlook, Yahoo and Apple. I have created all links except Apple.

I want to create a link for apple devices that save the event in apple calendar. My google calendar link that I created is as like same I want to create such link for Apple.

Can i get some help please.

I am using windows and also testing it on iPhone devices.

[Edited by Moderator]