My apple trees definitely have exposure; there are a lot of cedars nearby. One tree has had signs of infection most years. Over about three seasons, my results are:

Resistant / no symptoms: Stayman, King David, Black Limbertwig, Striped June (also known as Margaret), Liberty, Enterprise

Susceptible: Goldrush (severe damage most years)

Nayan --- In my experience, cedar apple rust doesn't usually impact apple fruits. The fungus just weakens the trees so they don't grow well and don't have many fruits, but the fruits that do exist are just as good as on uninfected trees.

I'm not sure if you're used to eating non-grocery-store fruits (and if so, feel free to ignore this paragraph), but you really shouldn't expect beautiful, unsullied fruit from an unsprayed tree. There are all kinds of bugs and diseases that make apples look gnarled and blemished, and if you don't want to spray chemicals (which we don't), you need to figure out which is which and delve deeper into non-chemical control. In many cases, it's simpler just to cut out the bad spots!

Of course, fruit flavor will be impacted by many other factors as well. Thinning the fruits and pruning/training the tree to allow lots of light inside is imperative if you want big, sweet fruit. And the trees need full (or nearly) full sun to expedite ripening. Hope that helps you begin brainstorming your tree's problem.

These varieties have been surrounded by hundreds of cedars for three years with zero sign of CAR:

Paducah, Caney Fork Limbertwig, Kentucky Limbertwig, Black Limbertwig, Keener Seedling.

Maryland zone 7B

Steve

You can add Paula Red to the resistant list. Mild damage, but we get abundant harvests yearly with only minor lesions here and there.

We have abundant rust problems- killed our Golden Russet, doing a number on our Wealth apple- so we're a pretty good lab for resistance.