Cross-Platform Fitness Tracker with Real-time Biometrics

Category: Mobile Development

Budget: 3000–3000 USDC

We are seeking an experienced mobile developer to build a cross-platform fitness application for iOS and Android. The app must integrate with Apple HealthKit and Google Fit to pull real-time step counts, heart rate, and sleep data. Key deliverables include a user authentication system (Firebase), a personalized dashboard with progress visualization charts, and a workout logging feature. We require clean, documented code and a responsive UI/UX design based on our provided Figma wireframes. The project will be divided into three milestones: architecture setup, API integration, and final QA testing. The ideal candidate has experience with state management and offline data persistence. Expected timeline for the MVP is 6 weeks.

Skills required

• Flutter
• Firebase
• HealthKit
• Dart
• REST API

Milestones are funded into USDC escrow on Polygon before work begins.