Both require cold winters.

I've seen both for sale at nurseries in Hilo and Puna, but don't know anyone that has the trees. I think low chill varieties would produce at higher elevations like Volcano or upper Oceanview.

This question has been asked in the past on one of the plant forums I have visited. In response, some one posted a link to a blog which described a trek to an orchard on the Big Island, obviously at some elevation, which had apples, peaches, etc. When I have some time I will try to locate the link.