Add to contacts button

Any idea how to create an “Add to contacts” button on the mobile site that will also work with both IOS and Android?

Hi bestsite.israel ,
Do you mean to add to the contact list of the user’s mobile device contact list?
In that case it’s not possible on any website.
Check out this article on StackOverflow:
Can a website (HTML5,JavaScript) access a mobile device’s (android/iPhone) contact list, SDCard files

If you meant something else please update.

Cheers,
Noam.