Renters facing high costs are turning to "rent now, pay later" services like Flex, Livble, and Affirm. These services let renters split rent payments, which they say will help them manage cash flow. However, consumer advocates warn the products often act like short-term loans with high fees, sometimes leading to triple-digit interest rates. Kellen Johnson used Flex to split his $1,850 monthly rent into two payments when he worked as an independently contracted delivery person for Amazon. He paid over $33 monthly in fees. Critics argue these services don't solve the issue of affordability in the rental market and may lead to higher rents.