Why is my small apple tree growing with lots of leaves and bearing no apples at all?

Question

Apple tree in a original pot

Answer 1

If it is still in the original pot you purchased the plant in, that is likely the problem. It needs more room to get established. There are other possibilities too. I've included more information.

https://www.gardeningknowhow.com/edible/fruits/apples/no-fruit-on-apple-trees.ht

https://www.gardeningknowhow.com/edible/fruits/apples/container-grown-apple-trees.htm