Create a Health Mobile App

An AI-powered wellness companion that analyzes user input (mood, meals, activity) and generates personalized daily coaching, reminders, and motivation.

I will provide coding, etc. but need your support with the following:

Frontend
React Native or Flutter (single codebase iOS + Android)
Local secure storage for sensitive tokens (Keychain / Android Keystore)
Backend (recommended)
Serverless + managed DB: Node.js / Python server on AWS Lambda or Google Cloud Run
Database: PostgreSQL (primary), Redis for sessions / caching
File storage: S3 (encrypted at rest)
AI & ML
Conversational LLM: OpenAI API (or similar) for core dialogue + personalization; follow provider usage & service agreement. OpenAI+1
Speech: Whisper (OpenAI) or other STT for voice features
Image: Stability or Vision APIs for meal photos (optional)
Integrations & sources
Apple HealthKit (iOS) and Google Fit (Android). Apple Developer+1
Optional: Fitbit, Garmin via their APIs for wearables
Security & compliance
TLS everywhere, encryption at rest (AES-256), role-based access controls, audit logging, SIEM integration for production, rate limiting, WAF.
Data flow (summary)
Mobile → backend (authenticated) → call LLM for response (no PHI unless user consents / you’re HIPAA compliant) → store hashed/ID-linked user records.

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