What are Affirm’s rates and fees? Rui Kojima December 11, 2018 15:59 Updated Affirm offers a 3 month payment plan with 0% APR for Aetrex.com customers. Related articles How do I make payments with Affirm? Does Affirm do a credit check and will it affect my credit score? What is Affirm? How long does it take to ship my online order? How do I contact customer service? Comments 0 comments Please sign in to leave a comment.