schemer vs planner

schemer and planner both are nouns.

Word	Noun	Adjective	Verb	Adverb
schemer	Yes	No	No	No
planner	Yes	No	No	No

As nouns, planner is a hypernym of schemer; that is, planner is a word with a broader meaning than schemer:

Other hypernyms of schemer include contriver, deviser.

schemer (noun)	planner (noun)
a planner who draws up a personal scheme of action	a notebook for recording appointments and things to be done, etc.
	a person who makes plans