As nouns the difference between perks and credentials
is that perks is while credentials is : documentary evidence of someone's right to credit or authority, especially such a document given to an ambassador by a country.
As a verb perks
is (perk).
perks
English
Noun
(head)
Verb
(head)
(perk)
credentials
English
Noun
(head)
: Documentary evidence of someone's right to credit or authority, especially such a document given to an ambassador by a country.