My Ipad is 2 years old. I purchased the lowest storage and I still have not used it all. Itunes is the source for apps. Search the topics you are interested in. Read the reviews.
I use ibooks, Kindle for Ipad, (rarely use it), numbers for Excel,
The Weather Channel, Quilt Shop Finder, and on and on......calendar Mob, email (3 emails), the list goes on. Love me my Ipad!!!
Sandy