App for programmatically rotating or changing orientation of ipads / iphones / 2

We need to programmatically rotate or change orientation of ipads from vertical to horizontal and back every minute automatically. We would like to be able to turn it on and off. And set turning delay like 30 secs, 1 min, 2 min 5 min etc. We can provide graphics of the button and delay drop down menu The app should work in background mode. So when we look at Safari browser, the device should always keep turning. Note: this is done to hep programmers test website on our devices remotely. They are not able to turn our devices by hands.