I've been waiting to release the standalone Stage Plot Maker app alongside BandHelper 2.2, which adds a stage plot module, but Apple is still withholding my BandHelper updates, so I went ahead and released Stage Plot Maker 1.0 today.
You can buy it from the App Store here:
https://itunes.apple.com/us/app/stage-plot-maker/id903691661?mt=8
Or watch a demo video here:
https://www.youtube.com/watch?v=w6nGXXhZ6aA