for apple users, please do this in safari
From the mobile app invite email, click the "Install App" button from within the email. This will open the App in your phone's default browser. If your default browser is not Safari, you'll need to copy the link and open it in Safari in order to add it to your Home Screen.
In Safari, click the 'Share' button to open the menu options.
From here, simply tap on the "+" icon to add the Mobile App to your phone's Home Screen.
Ta-da! ✨ The Mobile App will be saved to your Home Screen!