I don't have any answer to your question but just a heads up about growing apples from seed; it's kind of complicated but essentially apple genetics are weird and very diverse and you won't get the same type of apples from a seed as the tree that the seed came from. Like you won't get a Granny Smith-producing apple tree if you plant a seed from a Granny Smith apple. You will need to buy rootstocks of desirable trees (rootstocks decide the heigh of the tree, resistance to certain diseases and a few other things) and you'll have to graft to those rootstocks the "scion" (a piece of wood from a tree that produces the type of apples you want to get).
Apples are stupid but grafting is fun and a really cool skill to learn. You can still grow apples from trees but just know that they will taste bad. If you just want to grow a tree from seed though, and aren't concerned about the actual fruit though, then you have nothing to worry about.