Happy Coder

Bulka, LLC

In-app purchases

About this app

Happy Coder is the secure mobile companion for Codex and Claude Code that lets you continue your AI coding sessions anywhere (not affiliated with Anthropic or OpenAI). Built by developers who needed to check on their AI assistant's progress during coffee breaks, this app brings the full Codex and Claude Code experience to your phone with military-grade encryption.

**Important**: This app requires Codex or Claude Code to be installed on your computer. Happy Coder is a companion app that connects to your existing Codex or Claude Code setup.

**Key Features:**

- Continue Codex and Claude Code sessions seamlessly between desktop and mobile
- Push notifications for permission requests and task completion
- Access conversation history even when your terminal is offline
- End-to-end encryption - your code stays private
- Real-time streaming of AI responses
- Zero-knowledge architecture - we can't read your data

**How It Works:**
1. Install the happy-coder CLI on your computer
2. Scan a QR code to securely pair your devices
3. Use 'happy' instead of 'codex' or 'claude' to start encrypted sessions
4. Switch between desktop and mobile instantly

Perfect for developers who:
- Want to monitor long-running tasks on the go
- Need secure access to proprietary code discussions
- Value privacy and open-source transparency
- Work from coffee shops, trains, or anywhere

Happy Coder uses the same encryption as Signal (TweetNaCl) and is completely open source. Your encryption keys never leave your device, and all data is encrypted before transmission.

Built by Bay Area engineers who believe the best tools come from scratching your own itch. We needed a way to securely check on our AI coding assistant while away from our desks - so we built it and shared it with the community.

Your code. Your privacy. Your Codex and Claude Code companion.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Ratings and reviews

This is probably the best thing ever made for developers, or the absolute worst. Coding "downtime" is now a thing of the past. I find myself now plowing through issues and feature releases everywhere I go, no matter if it's at the gym, or having lunch and dinner. Thanks Happy Coder team. In all seriousness. great work. Absolutely fantastic tool.

Works with Claude but could be improved especially when the agent is giving you options to choose from. This tool simply displays the JSON with a yes and no choice which is out of context. I also wish it had a proper file browser. There is an experimental file browser feature but only shows the changed files which works only half the time. It doesn't work with Codex. It says permission required but tapping any of the choices does not do anything.

the remote access of the claude code is such a super usefull feature

What’s new

**New Session Composer**
- Rebuilt session creation screen — pick machine, agent, model, permissions, and worktree from one place. Drafts persist across navigation. Offline machines visible with "last seen" timestamps.

**Git Worktrees**
- Create new or select existing worktrees when starting sessions. Smart cleanup on delete/archive (checks for uncommitted changes and shared sessions first).