Step 1: Open in Safari
First, make sure you've accessed this page in the Safari browser on IOs (iPhone), or Google Chrome works on Android too.
Step 2: Open "share"
Tap the share icon at bottom of the browser, or the three dots in the top right corner if on Google Chrome (only on Android devices).
Step 3: Save to Home Screen
Swipe up until you find the alternative called "Save To Home Screen" in the share menu. Tap it to activate the option.
Step 4: Add to home screen
Press "Add to home screen" at the top right corner to make the website appear as an app on your home screeen.
Step 5: Use the app
Now you easily can access your programs directly from the home screen, just like any other app. If you have any issues, see FAQ.