uCTRL

Context

uCTRL (short for “you control”) is an AI-native personal health platform that unifies a user’s Apple HealthKit data, EHR records and manual notes into a single conversational experience. Users get daily AI insights, ask health questions in natural language, track medication adherence, and share a filtered, time-bounded lifeline with doctors or family.

My role

I joined in February 2026, while the team was building the MVP. I’m the only React Native engineer and I own the iOS app. I work with two senior backend engineers, a backend intern, a product intern, the PM (who is also the product owner), a product consultant and a senior designer.

What I built

• HealthKit integration
• The AI insights home
• The Health Assistant chat, with actionable responses
• The Lifeline timeline
• Granular data-sharing flows
• Medication tracking with OCR
• Biometric gating and onboarding
• Voice input with Apple’s native speech-to-text

Key decisions

• Bare React Native instead of Expo. The app depends on deep, native HealthKit integration, so I chose full access to the native iOS project over Expo’s managed workflow.

What was hard

• The HealthKit integration.
• Voice-to-text on top of Apple’s native speech recognition.
• The Lifeline’s linear view, where you zoom in and out of your health history. It was a challenge in both design and front-end.
• Animations throughout the app.
• Keeping onboarding quick and simple for a product that asks for sensitive health data.

Status

The MVP is in active development and hasn’t launched yet.