critic vs evaluator

critic and evaluator both are nouns.

Word	Noun	Adjective	Verb	Adverb
critic	Yes	No	No	No
evaluator	Yes	No	No	No

As nouns, evaluator is a hypernym of critic; that is, evaluator is a word with a broader meaning than critic:

Other hypernyms of critic include judge.

critic (noun)	evaluator (noun)
a person who is professionally engaged in the analysis and interpretation of works of art	an authority who is able to estimate worth or quality
anyone who expresses a reasoned judgment of something
someone who frequently finds fault or makes harsh and unfair judgments