After a quick test of Open-Stage-Control (mentioned in this topic) I can’t justify spending the money, since open-stage-control is open source, free software that needs NOTHING installed in the client, and actually after testing it with the pi, it works really well! almost no impact in the pi’s system and there are a lot of advanced things that can be done here that touchosc can’t (at least with the old touchosc).
Installing it was just a matter of downloading the node zip package from their website and running it with node via terminal Introduction - Open Stage Control
there is this great youtube video that explains how some basic things can be done, and the docs are really really nice