OTO Native App

A React Native Expo application that serves as the mobile version of the OTO conversation analysis platform. The app focuses on voice recording, AI-powered conversation analysis, and transcription features.

Features

Core Functionality

• Voice Recording: Direct microphone recording with background support
• AI Analysis: Conversation summaries, highlights, insights, and sentiment analysis
• Transcription: Timestamped segments with search functionality
• File Management: Upload progress tracking and processing status
• User Profiles: Personal settings and point system integration
• Global Trends: Conversation analytics and microtrend visualization
• Audio Clips: Important conversation segment management with playback

Authentication

• Privy Auth integration with wallet connectivity
• Solana blockchain integration for point systems

Tech Stack

• Framework: React Native 0.79.5 with Expo ~53.0.17
• Language: TypeScript with strict mode
• Navigation: Expo Router with file-based routing
• Authentication: Privy Auth with Solana wallet support
• Audio: expo-av for recording and playback
• Blockchain: Solana Web3.js, Anchor framework, SPL Token support

Prerequisites

• Node.js (version 16 or higher)
• npm or yarn
• Expo CLI (npm install -g @expo/cli)
• Android Studio (for Android development)

Installation

1. Clone the repository:

git clone <repository-url>
cd oto-app

2. Install dependencies:

npm install

3. Run on Android:

npm run android

Development

Available Scripts

• npm run android - Run on Android device/emulator
• npm run lint - Run ESLint for code quality
• npm run typecheck - Run TypeScript type checking

Project Structure

app/                     # Expo Router (main application)
├── _layout.tsx         # Root layout with Privy provider
├── index.tsx           # Entry point
├── (tabs)/             # Tab navigation group
│   ├── _layout.tsx     # Tab layout
│   ├── index.tsx       # Home tab (recording)
│   ├── history.tsx     # Upload history
│   ├── trends.tsx      # Global trends
│   └── profile.tsx     # User profile
└── conversation/       # Conversation details
    └── [id]/
        └── index.tsx   # Individual conversation view

components/             # Reusable UI components
├── analysis/          # Analysis display components
├── clips/             # Audio clip components
├── history/           # History list components
├── profile/           # Profile management components
├── recording/         # Recording interface components
├── trends/            # Trend visualization components
└── ui/                # Common UI components

hooks/                 # Custom React hooks
services/              # API integration
types/                 # TypeScript type definitions
constants/             # App constants
blockchain/            # Solana blockchain integration

Configuration

The app uses Expo configuration with several key settings:

• Bundle ID: com.yourcompany.otoapp
• Scheme: otoapp
• Permissions: Audio recording, foreground services
• Privy Integration: Configured for Solana wallet support

API Integration

The app integrates with the OTO backend API for:

• User authentication and profile management
• Audio file upload and processing
• Conversation analysis and transcription
• Trend data and analytics
• Point system management

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Voice Yields - Transforming global conversations into structured data for personalized services and AI training.