Any iOS device can be used to play Scene Lists. An iPad is required for full editing. L.E.D. Lab works with the following LED controllers:

It can also display to an external monitor or projector, serving as a VJ app.

Extensive help is provided for the rich user interface:

L.E.D. Lab is a free download. All its features can be evaluated at no cost. You can then purchase just the features you need as in-app upgrades