Flex + RevenueCat: Accept HSA/FSA payments for in-app subscriptions

A new integration between RevenueCat and Flex now allows developers to accept HSA and FSA payments for in-app subscriptions, opening a compliant and tax-advantaged revenue stream for health and wellness apps. Previously, Apple’s in-app purchase system did not support these payment options, creating friction both for users, who could not use their pre-tax benefits, and developers, who lost potential conversions. This collaboration enables developers to securely accept HSA/FSA payments while retaining RevenueCat's subscription management and analytics benefits. The integration is designed to be user-friendly, requiring minimal engineering effort, and ensures compliance with IRS and plan requirements. Early adopters like Ladder have reported significant user engagement and growth, highlighting the integration's potential to tap into the substantial U.S. HSA/FSA spending market. The Flex + RevenueCat integration is now available to all customers, providing a streamlined way to incorporate HSA/FSA payments into apps.