apiece vs for each one

apiece and for each one both are adverbs.

Word	Noun	Adjective	Verb	Adverb
apiece	No	No	No	Yes
for each one	No	No	No	Yes

As adverbs, apiece and for each one are synonyms defined as:

apiece and for each one: to or from every one of two or more (considered individually)

Other synonyms of apiece include each, from each one, to each one.

apiece (adverb)	for each one (adverb)
to or from every one of two or more (considered individually)	to or from every one of two or more (considered individually)