Where Does Your Medication Data Actually Go? The Case for Local-First Architecture

Most health apps use cloud-first architectures where medication data passes through multiple third-party services including analytics SDKs, push notification relays, and crash reporters—creating significant privacy risks. Consumer health apps are generally not HIPAA-protected, and medication lists serve as high-resolution proxies for sensitive personal information such as diagnoses and adherence patterns. Wellnest adopts a local-first architecture that keeps all health records on-device, sending only non-health metadata for optional analytics.