I have no idea. I do not know what IOS is? How do I find out?
Settings . . . General . . . About . . . Software Version
Get out your iPad User Guide and start learning. Then do for yourself what takes others a lot of time to do if they can only see and handle your iPad with your untutored eyes and hands. Some will help you in the beginning of your adventure if you are participating, but without you being on the learning curve, they become codependents, not tutors.