A mobile version of the Jan AI assistant built with Tauri, React, and TypeScript. This app provides a streamlined chat interface optimized for mobile devices with support for remote AI API connections.

Features

Mobile-Optimized UI: Touch-friendly interface designed for phones and tablets
Remote AI API Support: Connect to OpenAI, Anthropic, or custom API endpoints
Streaming Responses: Real-time streaming of AI responses for better UX
Configurable Settings: Easy setup for different AI providers
Cross-Platform: Supports both Android and iOS through Tauri
Offline-First Architecture: Local storage for settings and conversation history

Quick Start

Prerequisites

Node.js ≥ 20.0.0
Yarn ≥ 1.22.0
Rust and Cargo
Android SDK (for Android builds)
Xcode (for iOS builds on macOS)

Development

Install dependencies:
```
cd jan
yarn install
```
Start the mobile development server:
```
yarn dev:mobile
```

For native mobile development:

# Android
yarn mobile:android

# iOS (macOS only)
yarn mobile:ios

Configuration

Open the app and navigate to Settings (gear icon)
Choose your AI provider (OpenAI, Anthropic, or Custom)
Enter your API key and configure the endpoint
Test the connection and save your settings
Return to the main screen and start chatting!

Supported AI Providers

OpenAI: GPT-3.5, GPT-4, and other OpenAI models
Anthropic: Claude 3 models (Haiku, Sonnet, Opus)
Custom: Any OpenAI-compatible API endpoint

Architecture

The mobile app leverages the existing Jan codebase structure:

Core Library: Shared @janhq/core package for AI functionality
Mobile UI: React components optimized for touch interfaces
State Management: Zustand for lightweight state management
Routing: TanStack Router for navigation
Styling: Tailwind CSS with mobile-first design
Backend: Tauri for native mobile functionality

Key Components

ChatScreen: Main chat interface with message history
MessageBubble: Individual message rendering with markdown support
ChatInput: Touch-optimized input with auto-resize
SettingsScreen: API configuration and connection testing
Header: Navigation and app controls

Build for Production

# Build the mobile app
yarn build:mobile

# Build for specific platforms
yarn mobile:android  # Android APK/Bundle
yarn mobile:ios      # iOS IPA (macOS only)

API Configuration

The app supports multiple AI providers with the following configuration options:

OpenAI

Base URL: https://api.openai.com/v1
Models: gpt-3.5-turbo, gpt-4, gpt-4-turbo
Requires: OpenAI API key

Anthropic

Base URL: https://api.anthropic.com
Models: claude-3-haiku-20240307, claude-3-sonnet-20240229
Requires: Anthropic API key

Custom

Configurable base URL
OpenAI-compatible API format
Custom model names supported

Security

API keys are stored locally on the device
No data is sent to Jan servers
All communication is directly with your chosen AI provider
Settings can be cleared at any time

Troubleshooting

Connection Issues

Verify your API key is correct
Check the base URL format
Ensure you have internet connectivity
Use the connection test feature in settings

Build Issues

Ensure all prerequisites are installed
Check that Rust and Cargo are up to date
Verify mobile development dependencies (Android SDK/Xcode)
Clear node_modules and reinstall if needed

Contributing

This mobile app is part of the larger Jan project. Please see the main CONTRIBUTING.md for guidelines on contributing to the project.

License

Apache 2.0 - See LICENSE for details.