Have a look at the site below to learn how to add a link to MultiMe from your Smartphone or Tablet:
For Android Tablets and Smartphones
https://www.howtogeek.com/196087/how-to-add-websites-to-the-home-screen-on-any-smartphone-or-tablet/
For Apple iPhones or iPads:
https://www.wikihow.tech/Add-a-Link-Button-to-the-Home-Screen-of-an-iPhone