Logging in works the same. First you need to be logged in to your MS account then type in SC link and click on the MS login button.
You can create SingleCase to your HomeScreen.
On iPhone open SingleCase in Safari, click on share button on the bottom of the page. In the list of options that appear, scroll down until you see Add to Home Screen.
On your Android device, open Chrome. Go to the website that you want to create a shortcut for. To the right of the address bar, tap More Add to home screen. Create shortcut. From the dialogue that appears: Rename: Select the default name for the shortcut or rename the shortcut. Tap Add.
