It might be a medlar, It might be some sort of apple or pear. I really don't think it could be a quince. I is not a cherry/plum/apricot/sloe/peach/nectarine, but it is in the rose family. Cut one open cross-wise to find out for sure wether or not this is a pomme fruit. You can send a picture of that if you need further help.
posted 1 week ago
Thank you all for your responses! I should have mentioned that this is in southeast Wisconsin. I apologize for the quality of the pictures. I would go take better ones, but the house we're moving to with this tree is an hour and a half away, so I can't exactly just buzz out there.
I've attached two additional pictures. The first one is a zoomed in shot of one of previous pictures I sent. The second one is a picture I found online of a serviceberry. Is it possibly a serviceberry?
Crab apple? The leaves certainly look like apple leaves.
There are all sorts of different kinds of crab apples.
"The rule of no realm is mine. But all worthy things that are in peril as the world now stands, these are my care. And for my part, I shall not wholly fail in my task if anything that passes through this night can still grow fairer or bear fruit and flower again in days to come. For I too am a steward. Did you not know?" Gandolf
Looks like a crabapple tree to me. But the size of the fruit may help. Serviceberries aka Saskatoon berries aka June berry and on are tasty, sweet, and are about the size of a blueberry. Crabapples are larger and crisper. Mini mini apples that are often quite tart for a long time. Some sweeten, some don't. If of the tastier type of crabapple they are awesome to add to jelly and jam making experiments because they are high in pectin. The trees are super beautiful in the spring, with lovely blossoms.