Zero Proof

Introduction

Zero Proof is a sobriety tracking mobile application built with React Native and Expo. The app helps users track their sobriety journey through beautiful calendar visualization, streak tracking, financial savings calculations, and real-time progress monitoring. Built with modern technologies including Expo Router for navigation, Tailwind CSS for styling, React-Hook-Form for form handling, Zod for schema validation, and TypeScript for type safety.

Running on iOS

This project uses Expo to build and test the iOS app both locally and on physical devices. To run the app on your iOS device, use:

npx expo run:ios --device

Note: The ios and android folders are not committed to GitHub, as the project is managed entirely through Expo. Native code is not tracked in version control unless the project is ejected.

Features

• Calendar Visualization: Beautiful heatmap-style calendar showing sobriety progress
• Streak Tracking: Real-time streak counter with current and best streak metrics
• Financial Tracking: Calculate money saved based on personal drink costs
• Timer Display: Live timer showing exact time since last drink
• Onboarding Flow: Guided setup with drink quantity input and subscription management
• Offline Support: Full functionality with local data persistence
• iOS Optimized: Native iOS experience with proper subscription integration

License

This repository is licensed under the MIT License.