Does anyone have an apple tree?

Do you spray it every year?

If you don't spray do you still use the apples?

What do you spray it with?

How do you know what type of apples you have?

Can you freeze apples (cored and chopped) or can you only can them?

We've never sprayed before, but I want to start using them so I need some information.  Would the same spray work for a cherry tree?  Our apple and cherry tree are side by side and while I don't give 2 hoots about the cherries, I know my sister would come pick some.  Any information is greatly appreciated.