individually vs singly

individually and singly both are adverbs.

Word	Noun	Adjective	Verb	Adverb
individually	No	No	No	Yes
singly	No	No	No	Yes

As adverbs, individually and singly are synonyms defined as:

Other synonyms of individually include on an individual basis, one by one, separately, severally.

individually (adverb)	singly (adverb)
apart from others	one by one; one at a time
	apart from others