That could very well be, TBD, are there green crabapples? I dunno.
An alternative thought. We inherited a full size apple tree our house (TBD, it's the one left of the garage looking from your place) and it only had tiny green apples with a red blush. TART! But my neighbor came over and said he didn't think they were and don't take it out (what am I going to use crabapples for, a sling shot???). Instead, give it a good hair cut, regular water and some fertilizer (the previous owners did none of that). Well, sure enough, they became twice the size or more if I thin them. Brittany at the nursery that closed thought they might be Braeburn and I think she's right. In two years, I had a bumper crop and plenty to freeze or can. You live 'around the corner' from me as I recall, I can come over and take a look. I'm also available for trimming guidance this winter, if you should need it either way.