WhatsApp allow only on mobile devices

Hi there

Please could someone give me an idea on how to setup Sophos XG115 to enable mobile devices to access WhatsApp only. Sorry I have some some posts on this, but would like a detailed guide if possible. 

Thanks



Edited TAGs
[edited by: Raphael Alganes at 3:10 PM (GMT -8) on 29 Jan 2024]