It’s easy to add an icon for Dr.App (or any website) to your phone’s home screen for easy access.  Go back to the front page, https://angelproductions.co.uk/drapp/ and then find the ‘Add to Home Screen’ option: on an Android phone this is in the menu with three dots in the top right corner, and on an iPhone it’s in the ‘Share’ menu in Safari (a square with an arrow pointing up).