The truth is that it would be nice and it would be a new market niche if you considered plasticity on iPad Pro, such as ZBrush, Sharp 3d (although I don't like the subscription with continuous payments and more for people who do it on a non-profit basis), Blender will also release a version for the iPad, so I encourage you to consider it, because it can be very interesting for you and for those of us who like design.