Healthify | Cayden's Portfolio

Table of Contents

Overview

Healthify is an Android app built with Flutter (Material 3) that makes healthcare access more convenient through:

an AI Health Assistant (Google Gemini),
clinic discovery via maps and location services,
and a streamlined appointment booking experience.

Built by Jethro and I for our Mobile Computing Project (Year 3, Computer Engineering Specialisation).

Slides

Healthify by caydenmtheseira

Problem

Finding clinics, understanding what service you need, and booking appointments often requires:

switching between apps or websites,
searching unfamiliar clinic details,
and navigating unclear booking flows.

Healthify consolidates these steps into a single, user-friendly workflow.

Key Features

🤖 AI Health Assistant (Gemini)

Natural chat interface for health-related questions
Supports image uploads for AI-powered analysis and insights
Maintains conversational context for more useful follow-ups
Helps infer booking intent from user inputs

📅 Appointment Booking

Guided booking flow with service categories, time selection, and notes
Stores bookings and history in Firebase Firestore
Sends email confirmations using Resend API

Service Categories

Doctor Consultation
Vaccination
Screening & Tests
Nursing Services
Allied Health
Dental

🗺️ Clinic Discovery & Maps

Interactive map built on OpenStreetMap
Finds nearby clinics using GPS and distance calculations
Clinic cards with quick actions (save / book)

👤 User Accounts & Profiles

Authentication via Firebase Authentication
Profile management (e.g., name, age, contact details)
Profile pictures uploaded through Cloudinary

Tech Stack

Frontend: Flutter 3.6.0+ (Material Design 3)
State Management: Provider
Backend: Firebase Authentication, Firestore
AI: Google Gemini API
Maps & Location: flutter_map, OpenStreetMap, geolocator, Geoapify
Email: Resend API
Media: Cloudinary

My Role

I focused on building and integrating core mobile features across UI and functionality:

Implemented Material 3 UI theming and screen layouts
Built map and location-based clinic discovery (markers, distance logic, UI cards)
Developed appointment booking workflows and Firestore integration
Integrated the Gemini AI assistant into the chat experience
Supported testing, bug-fixing, and performance improvements across the app

Getting Started

Clone the repository:

git clone https://github.com/yourusername/Healthify.git
cd Healthify

Install dependencies:

flutter pub get

Create a .env file:

GEMINI_API_KEY=your_gemini_api_key_here
GEOAPIFY_API_KEY=your_geoapify_api_key_here
RESEND_API_KEY=your_resend_api_key_here

Configure Firebase (Authentication + Firestore)
Run the app:

flutter run

Project Structure

lib/
├── models/          # Data models (Clinic, Appointment, User)
├── screens/         # UI screens
│   ├── health_assistant.dart
│   └── make_appointments_screen.dart
├── utilities/       # Helper functions and Firebase calls
├── widgets/         # Reusable UI components
└── main.dart        # Application entry point

Outcome

Healthify demonstrates a practical integration of AI, maps, and secure user management to deliver a simple, end-to-end healthcare workflow — from asking questions to finding a clinic and booking an appointment.