I'm looking for a particular type of app, and I'm not having very much luck. I'm looking for an app that shows my device's gyroscopic inputs, shown "physically" rather than as numbers. I know such apps exist, but there's one more specific detail I'm looking for. I'm looking for one that's an overlay and floats above other apps. I'm planning on doing a gameplay video, and the game in question uses the tilt sensors on certain levels. I at least want my viewers to know what direction my device is tilting. And if such an app doesn't exist, then maybe an app that allows me to make a floating window of another app.