Pt Pal — Digital Therapy Companion

Android & iOS

About

HIPAA-compliant mobile health platform with AI-powered pose detection, connecting patients with clinicians for digital therapy delivery. Features real-time exercise tracking via ML Kit, interactive prescriptions, biometric authentication, and encrypted data handling.

My Role

Built the full patient engagement platform: ML Kit pose detection for exercise counting, CameraX integration, biometric authentication, encrypted storage with Google Tink, clinician messaging, and push-driven adherence tracking.

Core Capabilities

• Clinician-prescribed exercise routines and educational content
• Video playback with audible counting and pain/RPE logging
• Integration with FitMi rehab devices and ResearchStack surveys
• Camera-based pose tracking for exercise rep counting
• Passive activity monitoring with step-counter and reminders

Architecture

• Android: AndroidX, RecyclerView, ViewPager2, WorkManager, BiometricPrompt, DataStore + Tink encryption
• Networking: Retrofit + Gson, token sync via WorkManager
• Media: CameraX with ML Kit pose detection, ExoMedia, YouTube API, MPAndroidChart

Tech Stack