North — AI Life Guide App

A personal AI companion that helps you navigate daily life through guided check-ins, reflections, and actionable insights. Built with Expo SDK 54 and powered by AI.

Features

• Daily Check-In — guided emotional and productivity check-in flow
• AI Insights — personalized life guidance powered by Anthropic API
• Streaks & Engagement — daily streak tracking with animations and rewards
• Notion Integration — sync your reflections and insights to Notion via OAuth
• Onboarding Flow — beautiful multi-step onboarding experience
• Freemium Model — paywall with RevenueCat integration

Tech Stack

• React Native / Expo SDK 54 — cross-platform mobile framework
• Expo Router v4 — file-based navigation
• TypeScript — type-safe development
• Anthropic API — intelligent life guidance
• Expo SecureStore — encrypted credential storage
• Notion API — OAuth-based journal sync
• RevenueCat — subscription management
• React Native Reanimated — fluid animations

Architecture

north/
├── app/                          # Expo Router pages
│   ├── (tabs)/                   # Tab-based navigation
│   │   ├── index.tsx             # Home / daily view
│   │   ├── guide.tsx             # AI guidance screen
│   │   └── connections.tsx       # Notion & integrations
│   ├── onboarding.tsx            # First-time user flow
│   └── paywall.tsx               # Subscription screen
├── src/
│   ├── components/               # Reusable UI components
│   │   └── DailyCheckIn.tsx      # Check-in flow component
│   ├── constants/                # Theme, prompts
│   ├── context/                  # React Context (AppContext)
│   ├── hooks/                    # Custom hooks (useInsight)
│   ├── services/                 # API integrations
│   │   ├── ai.ts                 # AI service
│   │   ├── notion.ts             # Notion OAuth + sync
│   │   └── purchases.ts         # RevenueCat service
│   ├── types/                    # TypeScript definitions
│   └── utils/                    # Helper functions
└── assets/                       # Icons, splash, fonts

Setup

1. Clone the repo
2. npm install --legacy-peer-deps
3. Create src/constants/config.ts with your API keys:

   export const CONFIG = {
     AI_API_KEY: 'your-api-key',
     NOTION_CLIENT_ID: 'your-notion-client-id',
     NOTION_CLIENT_SECRET: 'your-notion-client-secret',
     REVENUECAT_API_KEY_IOS: 'your-revenuecat-key',
     REVENUECAT_API_KEY_ANDROID: 'your-revenuecat-key',
   };

4. npx expo start

License

MIT