you have to go to app store and find it out
app store
Yes you can buy apps they are from Android so they are pretty decent
download or buy them
yes
There are apps and websites that allow people to download books for free. Amazon and Barnes and Noble even have free books available for their Kindle and Nook e-readers.
apple apps NO
you go to apps and download it
there is no limit
yes. kindle fire
Yes.
you cant
you cant download app which cost for free if you download it it will cost you and you will have to pay for it, if you dont want to pay for apps only download apps which are free.