Spatz — Weight Loss Companion

A companion application for progress, appointments, guidance, and clinician-connected weight-loss support around the Spatz Balloon.

Project Overview

Spatz supports the patient journey around the Spatz Balloon with progress tracking, appointment visibility, educational material, and clinician connection.

The app structures long-term medical treatment into clear phases with direct connectivity to supervising doctors.

My Engineering Role

Flutter development for the mobile patient companion experience, chart visualization, and encrypted health data persistence.

The Challenge

A health companion must keep long-running progress, scheduled care, and educational guidance understandable across medical milestones.

The Solution

The interface organizes the journey around milestones, appointments, and personalized guidance instead of exposing operational complexity.

High-Level Architecture

  • Flutter mobile client backed by secure clinical REST APIs with encrypted local storage.
  • Time-series charting engine rendering patient weight trajectories and milestone target dates.
  • Firebase Cloud Messaging integration for time-sensitive clinical alerts and appointments.

Key Features & Workflows

  • Patient longitudinal weight progress tracking and analytics
  • Appointment calendar visibility with clinic notifications
  • Direct communication channel with supervising physician
  • Personalized medical articles, videos, and milestone guides
  • Daily hydration, diet, and symptom logging tools

Technical Challenges Overcome

  • Maintaining privacy-compliant biometric protection for sensitive patient health records
  • Presenting dense longitudinal medical charts smoothly on varied screen densities
  • Handling offline milestone check-ins with reliable cloud synchronization upon reconnection

Production Results & Impact

  • Active and published application on Google Play Store.
  • Enhanced patient compliance and milestone completion rates.
  • Provides clinicians with verified remote visibility into patient progress.

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