With the power of html5 (full supported), you can create animated presentations of your activity.
You can easily lock navigation to your site or a site of your choise without outgoing links.
This app uses "Immersive mode" functionality of Android 4.4+. If you choose this app as your default home application you can use it in a "kiosk" mode.
Shake your device
...and you'll access to your setting page, protected by a numeric password.
You can choose: To enable zoom controls and pinch, to keep the screen always on, to lock screen orientation in portrait or landscape mode.
P.S. Hidden default password is "2210"