I always used a laptop and mixing station, or a laptop and an iPad together.
Yep. Before Mixing Station got better, I would routinely use all 3 platforms at nearly every show. The meter overview on iPad shows the amount of dynamics gain reduction, which neither of the other platforms did at first. Now I mostly just use Mixing Station Pro. I don't think there's anything I need the laptop editor for. I don't care about the graphics at all.
Behringer has promised an updated iPad app "soon". We'll see what they come up with. They have a history of abandoning software development. Their DSP 1100 editor never did get past the 0.1 beta version. And they're apparently not updating the Android app, since the developer is off doing his own wonderful thing, God bless him.