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 may not be available in some browsers.
You can fix it by opening the window, and holding the switch down for about 15 seconds when open, closing the window and holding the switch for about 15 seconds when the window is closed. (I sometimes have to do this twice, but it always works for me)