Modern apples have been bred to be larger and a lot sweeter than "natural" apples which are smaller and more sour. Not saying they are equivalent to a processed snack cake but they aren't especially healthy either.

That’s what I’m noticing about apples more and more these days: all of them are incredibly sweet like candy. The only variety I’ve found that seems suitable for regular eating ate the Granny Smith variety, but I hate their tough skins.