You can install our site as a web app on your iOS device by utilizing the Add to Home Screen feature in Safari. Please see this thread for more details on this.
Note: This feature currently requires accessing the site using the built-in Safari browser.
You will be surprised, but this is how we wash our MS overhere all the time (with very few exemptions going for hand washing). There are no "touch-free" wash facilities in Germany due to regulation, I think.