HealthWallet.me

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HealthWallet.me

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Open-source, patient-controlled health record app with on-device AI. Aggregates medical data from 52K+ providers via FHIR R4. Offline-first. Flutter.

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# HealthWallet.me

### Your medical records. On your phone. Under your control.

**Open-source, offline-first health record manager with on-device AI.**
Connects to **52,000+ US healthcare providers** via FHIR R4.
Scans paper documents with a local LLM — **your data never leaves your device.**

[![iOS App Store](https://img.shields.io/badge/App_Store-000000?style=for-the-badge&logo=apple&logoColor=white)](https://apps.apple.com/app/healthwallet-me/id6748325588)
[![Google Play](https://img.shields.io/badge/Google_Play-3DDC84?style=for-the-badge&logo=google-play&logoColor=white)](https://play.google.com/store/apps/details?id=com.techstackapps.healthwallet)

<br>

[![Version](https://img.shields.io/badge/version-1.2.0-blue)](https://raw.githubusercontent.com/LifeValue/HealthWallet.me/master/changelog.md)
[![License: GPL v3](https://img.shields.io/badge/License-GPLv3-blue.svg)](https://raw.githubusercontent.com/LifeValue/HealthWallet.me/master/LICENSE.md)
[![Flutter](https://img.shields.io/badge/Flutter-3.38-02569B?logo=flutter)](https://flutter.dev)
[![FHIR R4](https://img.shields.io/badge/FHIR-R4-E44D26)](https://hl7.org/fhir/R4/)
[![Platform](https://img.shields.io/badge/Platform-iOS%20%7C%20Android-lightgrey)]()
[![GitHub](https://img.shields.io/badge/GitHub-181717?style=for-the-badge&logo=github&logoColor=white)](https://github.com/lifevalue)
[![YouTube](https://img.shields.io/badge/YouTube-FF0000?style=for-the-badge&logo=youtube&logoColor=white)](https://www.youtube.com/@TechStackAppsCo)
[![Facebook](https://img.shields.io/badge/Facebook-1877F2?style=for-the-badge&logo=facebook&logoColor=white)](https://www.facebook.com/techstackapps/)
[![LinkedIn](https://img.shields.io/badge/LinkedIn-0077B5?style=for-the-badge&logo=linkedin&logoColor=white)](https://www.linkedin.com/company/lifevalue/)
[![Follow @techstackapps](https://img.shields.io/twitter/follow/techstackapps)](https://x.com/techstackapps)

<br>

</div>

---

## About

**HealthWallet.me** is a **patient-controlled**, **community-driven** health record platform that consolidates your medical data from multiple providers into one accessible app.

**Patient-Centered** | **Privacy-First** | **FHIR Compliant** | **Offline Capable**

**What makes it different:**

- **On-device AI** — Scan paper documents and the built-in LLM extracts structured FHIR resources locally. No cloud. No uploads. No data leaks.
- **52,000+ providers** — Connect to US healthcare systems through FHIR R4 APIs via a **self-hosted** [FastenHealth](https://github.com/fastenhealth/fasten-onprem) backend.
- **Truly offline** — Full access to all your records without internet. Sync when you're ready.
- **Proximity sharing** — Share records face-to-face via AirDrop-style transfer. No intermediary server.
- **International Patient Summary (IPS)** — Export a globally recognized health summary for travel or emergencies.
- **Emergency wallet card** — Add your critical health info to Apple Wallet or Google Wallet.

---

## Features

| Feature | Description |
|---------|-------------|
| **AI Scan** | Photograph or import medical documents; the on-device LLM extracts patient info, encounters, medications, allergies, and lab results into structured FHIR records |
| **Aggregate** | Sync records from 52,000+ hospitals, clinics, and labs through FHIR R4 APIs |
| **Organize** | Browse all records — conditions, medications, immunizations, lab results, clinical notes — in one place |
| **Share** | **Cross-platform** proximity sharing — transfer records between **iOS and Android** devices, no internet needed. Data is **view-only** on the receiver side — never stored, **screenshots blocked** |
| **Export** | Generate an **International Patient Summary** PDF or add emergency info to **Apple/Google Wallet** |
| **Secure** | Face ID / fingerprint lock, local SQLite storage, no mandatory cloud dependency |

---

## Quick Start

### Install the App

[![Download on the App Store](https://raw.githubusercontent.com/LifeValue/HealthWallet.me/master/assets/readme/apple_store.svg)](https://apps.apple.com/app/healthwallet-me/id6748325588)
[![Get it on Google Play](https://raw.githubusercontent.com/LifeValue/HealthWallet.me/master/assets/readme/playstore.svg)](https://play.google.com/store/apps/details?id=com.techstackapps.healthwallet)

</div>

### Set Up Your Self-Hosted Backend

The backend ([FastenHealth](https://github.com/fastenhealth/fasten-onprem)) aggregates medical records from healthcare providers and syncs them to your phone.

**Prerequisites:** [Docker](https://docs.docker.com/get-docker/)

```bash
curl https://raw.githubusercontent.com/fastenhealth/fasten-onprem/refs/heads/main/docker-compose-prod.yml -o docker-compose.yml && \
curl https://raw.githubusercontent.com/fastenhealth/fasten-onprem/refs/heads/main/set_env.sh -o set_env.sh && \
chmod +x ./set_env.sh && \
./set_env.sh && \
docker compose up -d
```

Then open `http://localhost:9090`, create an account, and you're ready.

### Connect the App to Your Backend

1. Generate an access token in your FastenHealth dashboard
2. Scan the QR code with HealthWallet
3. Your records sync automatically

---

## On-Device AI — How It Works

HealthWallet runs a quantized LLM directly on your phone using [llama.cpp](https://github.com/ggerganov/llama.cpp). No API calls, no cloud processing — the model runs locally with Metal acceleration on iOS and CPU inference on Android.

### Available Models

| Model | Size | Best For |
|-------|------|----------|
| **Standard** ([Qwen3-VL-2B](https://huggingface.co/Qwen/Qwen3-VL-2B-Instruct-GGUF)) | ~1.1 GB | Fast, lightweight, works on most devices |
| **Advanced** ([MedGemma-4B](https://huggingface.co/SandLogicTechnologies/MedGemma-4B-IT-GGUF)) | ~2.5 GB | Higher accuracy for complex medical documents |

**Deep Scan** (optional vision projector) lets the AI read directly from photos instead of OCR text. One-time download: ~445 MB (Standard) or ~851 MB (Advanced).

<details>
<summary><strong>Device Requirements</strong></summary>

| Device | RAM | Capability |
|--------|-----|------------|
| **iPhone Pro/Pro Max** | 6 GB+ | Full scanning (both models) |
| **iPhone 13/14/15** | 4-6 GB | Standard model only |
| **Android** | 12 GB+ | Full scanning (both models) |
| **Android** | 10-11 GB | Standard model only |

</details>

---

## Architecture

Built with **Clean Architecture** and feature-based modules in **Flutter/Dart**.

| Layer | Technology |
|-------|-----------|
| **State Management** | BLoC (flutter_bloc) |
| **Dependency Injection** | GetIt + Injectable |
| **Navigation** | AutoRoute (type-safe) |
| **Local Database** | Drift (SQLite) |
| **Networking** | Dio |
| **Code Generation** | Freezed, JSON Serializable |
| **Healthcare Standard** | FHIR R4 |
| **On-Device AI** | llama.cpp via llamadart |
| **Localization** | Flutter Intl (EN, ES, DE) |

<details>
<summary><strong>Project Structure</strong></summary>

```
lib/
├── app/                    # App configuration and initialization
├── core/                   # Shared infrastructure
│   ├── config/            # App configuration and constants
│   ├── data/              # Local database (Drift/SQLite)
│   ├── di/                # Dependency injection setup
│   ├── l10n/              # Localization
│   ├── navigation/        # Router and route definitions
│   ├── services/          # Shared services
│   ├── theme/             # Colors, text styles, spacing
│   ├── utils/             # Utility functions
│   └── widgets/           # Reusable UI components
├── features/
│   ├── dashboard/         # Main tab navigation
│   ├── home/              # Health overview with reorderable grid
│   ├── records/           # Health records management + IPS export
│   ├── scan/              # AI document scanning (llama.cpp)
│   ├── sync/              # QR-based backend sync
│   ├── share_records/     # Proximity sharing (AirDrop-style)
│   ├── wallet_pass/       # Apple/Google Wallet emergency card
│   ├── user/              # Profile & patient management
│   ├── onboarding/        # First-launch flow
│   └── notifications/     # In-app notifications
└── gen/                   # Generated code
```

</details>

<details>
<summary><strong>Branch Strategy</strong></summary>

| Branch | Purpose | CI/CD |
|--------|---------|-------|
| `master` | Production | Deploy to App Store + Play Store |
| `develop` | Staging | Deploy to internal tracks |
| `feature/*` | New features | Analyze + test |
| `fix/*` | Bug fixes | Analyze + test |
| `release/*` | Release stabilization | Full test suite |
| `hotfix/*` | Urgent fixes | Analyze + test |

</details>

---

## Development Setup

**Prerequisites:** Flutter 3.38+ (managed via [FVM](https://fvm.app/))

```bash
dart pub global activate fvm
fvm install && fvm use
flutter pub get
dart run build_runner build --delete-conflicting-outputs
flutter test
```

---

## Roadmap

### Completed Features
- Basic health record management
- Authentication and security
- Cross-platform support
- File import & in-app viewing
- Smart document scanning (AI reads and organizes your medical records)
- Add IPS (International Patient Summary) to Google / Apple Wallet
- **Cross-platform** proximity sharing — works between **iOS and Android**, view-only on receiver, no data saved, screenshots blocked

### In Progress
- Desktop app with backup sync and offloaded document processing

### Future Plans
- Responsive UI
- Wearable & health provider integration
- AI health insights
- AI Note taking prescription
- Family management
- QR code sharing (SMART Health Cards)

---

## Contributing

We welcome contributions! See [CONTRIBUTING.md](CONTRIBUTING.md) for guidelines.

```bash
# Fork → Branch → Code → PR
git checkout -b feature/your-feature
# Make changes
git push origin feature/your-feature
# Open a pull request
```

---

## Sponsors

**HealthWallet.me** is an open-source project dedicated to improving healthcare accessibility and patient data management.

</div>

Interested in **corporate sponsorship** or **partnership opportunities**? We offer:

- **Enterprise features** and custom integrations
- **White-label solutions** for healthcare organizations
- **Strategic partnerships** in the healthcare technology space
- **Priority support** and dedicated resources

[**Contact us**](https://lifevalue.com/company/contact)

---

## Authors

- **Alex Szilagyi** — [@alexszilagyi](https://github.com/alexszilagyi)
- **Jason Kulatunga** — [@AnalogJ](https://github.com/AnalogJ)

## License

---

**If HealthWallet helps you, give it a star** — it helps others find it too.

[![Rate on iOS](https://img.shields.io/badge/Rate_on_App_Store-000000?style=for-the-badge&logo=apple&logoColor=white)](https://apps.apple.com/app/healthwallet-me/id6748325588)
[![Rate on Google Play](https://img.shields.io/badge/Rate_on_Google_Play-3DDC84?style=for-the-badge&logo=google-play&logoColor=white)](https://play.google.com/store/apps/details?id=com.techstackapps.healthwallet)

</div>

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