It certainly isn't hard and we've done this previously as a one-off in-joke kind of thing. It just creates a lot of useless energy consumption since there are l

It certainly isn't hard and we've done this previously as a one-off in-joke kind of thing. It just creates a lot of useless energy consumption since there are large parts of those game-engines running that you don't need. It isn't that hard to be proficient enough in both Android and iOS Development to build "good" CRUD Apps, while also becoming proficient in Unity3D. Making money with all three at the same time without focusing on one is hard to sell though.