for each one vs apiece

for each one and apiece both are adverbs.

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

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

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

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

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