The Apple Stylus will not work. You might be able to pick up one of the generic ones that have been out for years, though I hear they are mostly bad.
Probably should have sprung for the Pro if you were going to use a CAD app.
yes i read many reviews and feedback not good of using them
ipad pro is expensive for me at this time
so i search if any stylus may work good and get ipad 2017 with it
if i have the money of course go with pro plus apple pencil
where i can get pro for low price
i will wait till black friday or Christmastime to get one my be pro
where i can find best deals