caramel apple vs candy apple

caramel apple and candy apple both are nouns.

Word	Noun	Adjective	Verb	Adverb
caramel apple	Yes	No	No	No
candy apple	Yes	No	No	No

As nouns, caramel apple and candy apple are synonyms defined as:

caramel apple and candy apple: an apple that is covered with a candy-like substance (usually caramelized sugar)

Other synonyms of caramel apple include candied apple, taffy apple, toffee apple.

caramel apple (noun)	candy apple (noun)
an apple that is covered with a candy-like substance (usually caramelized sugar)	an apple that is covered with a candy-like substance (usually caramelized sugar)