# Happy: Codex & Claude Code App — Codex & Claude Code on the go

> Secure mobile companion for AI coding sessions, enabling on-the-go access and monitoring. (iPhone/iPad app by Bulka, LLC.)

- Source: https://appshunter.io/ios/app/happy-codex-and-claude-code-app/id6748571505 (this page in markdown: same URL + `.md`)
- Developer: [Bulka, LLC](https://appshunter.io/developer/1677403762)
- Category: Developer Tools, Productivity
- Price: Free with in-app purchases
- Rating: 4.90/5 from 991 App Store ratings · 66 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.1 · 92 MB
- Languages: American English
- Released: 2025-07-21
- Data updated: 2026-08-26
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/happy-codex-and-claude-code-app/id6748571505/reviews.md

## What is Happy?

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/

## Key features

- Seamless desktop and mobile session continuation
- Push notifications for AI tasks
- Offline access to conversation history
- End-to-end encryption for code privacy
- Real-time streaming of AI responses
- Zero-knowledge architecture

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Plus Plus Monthly | $19.99 | per month |


## Chart rankings

- #68 in Top Free · Developer Tools (US App Store)
- #19 in Top Grossing · Developer Tools (US App Store)

## Recent user reviews (10 of 66)

All indexed reviews: https://appshunter.io/ios/app/happy-codex-and-claude-code-app/id6748571505/reviews.md

### 5/5 — most enjoyable dev tool

*2026-08-20, version 1.7.0*

feels smooth, better than claude, codex app woth remote controll

### 5/5 — Amazing - one of the only reliable ways to code from my phone

*2026-07-29, version 1.7.0*

It’s fantastic. New update to the UI in app could have used some testing before implementing. Initial sessions are not having line breaks which is just annoying UX

overall this solves a big pain until Claude finally creates an easier way to seamlessly go between phone and computer while keeping sessions on the end server

### 5/5 — Godly

*2026-06-24*

God

### 2/5 — Slop

*2026-06-20, version 1.7.0*

Sorry but, the app is slop.

### 5/5 — Overall very good

*2026-06-20, version 1.7.0*

Awesome app. But yolo features still not true yolo, asking permission for bash operations

### 5/5 — crash report

*2026-06-04, version 1.7.0*

It will crash when you click on the file list.
I‘m talking about the modified Git file displayed.

### 5/5 — 非常的棒👍

*2026-05-21, version 1.7.0*

非常的棒👍

### 1/5 — vibe coded and lacks polish

*2026-05-13, version 1.7.0*

I really enjoy using this app because it unlocks a capability that was hard for me to use elsewhere. I also appreciate that it's open source. However, the app has a lot of trivial problems that would be readily solved by somebody who is versed cross-platform mobile development. I find that there frequent breaking changes to the app, such as navigation bugs, and the app is not optimized for long running chats or for lots of chats (for example, opening an old chat takes minutes to catch up).

### 3/5 — claude code bug

*2026-05-02, version 1.7.0*

when I hit the “claude code” button on start a new session screen, it crashes the app

### 5/5 — Better then any alternatives

*2026-04-21, version 1.7.0*

Very cool app with better UI then anything else

## Frequently asked questions about Happy

### What does Happy Coder do?

Happy Coder is a secure mobile companion app that allows you to continue your AI coding sessions with Codex and Claude Code from anywhere. It enables you to monitor AI progress, receive notifications, and access conversation history, all while ensuring your code remains private through robust encryption.

### How does the encryption work?

The app utilizes end-to-end encryption, similar to Signal, with a zero-knowledge architecture. This means your encryption keys never leave your device, and all data is encrypted before transmission, ensuring that neither the app developers nor any third parties can access your code or conversations.

### What are the key features of this app?

Key features include seamless continuation of coding sessions between desktop and mobile, push notifications for important AI updates, offline access to your chat history, real-time streaming of AI responses, and a strong emphasis on privacy with end-to-end encryption and a zero-knowledge design.

### Is this app free to use?

The app is free to download and use, but it does offer in-app purchases. It functions as a companion to existing Codex or Claude Code installations on your computer, requiring a setup with a CLI tool.

### Who is this app designed for?

This app is perfect for developers who need to keep an eye on long-running AI coding tasks while away from their computers, require secure access to sensitive code discussions, or simply value a high level of privacy and open-source transparency in their development tools.

## Version history (last 5 releases)

### 1.7.0 — 2026-03-27

*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).

*Voice Assistant*
- 1 hour free, then subscription required. Bring-your-own ElevenLabs agent option in Settings > Voice. Cross-session support, prompt queuing during speech, and VAD-based speaking indicators. Fixed stuck "connecting" state.

*Multi-Agent*
- OpenClaw added as 4th agent. Updated model names (Claude opus/sonnet 4.6, Codex gpt-5.3/5.4). "Bypass" renamed to "Yolo" with sandboxed badge. Auto plan-mode switching. Dynamic model/mode selectors from backend metadata.

*Session Management*
- Long-press/right-click quick actions (Details, Archive, Copy Metadata). Instant archive (no confirmation). Delete always available. Disconnected sessions show copyable resume CLI command. Push notifications now deep-link to sessions. CLI availability shown on machine detail.

*Rendering*
- Codex patches show full inline diffs. Markdown tables support rich formatting. Links work on web. Internal tool calls (thinking, ToolSearch) hidden. Bash commands render correctly for all agents.

*Performance & Reliability*
- Expo SDK 55. Mobile web Enter key inserts newline.

### 1.5.0 — 2025-09-18

- OpenAI Codex Support
- Ability to start new sessions remotely

### 1.4.1 — 2025-08-23

- Dark theme support

### 1.4.0 — 2025-08-21

- New icon and design improvements!
- Better daemon mode support
- 3 types of images for projects

### 1.3.1 — 2025-08-14

- Fix push notifications

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## More apps by Bulka, LLC

- [Glassium AI](https://appshunter.io/ios/app/glassium-ai/id6499084145)

All apps by Bulka, LLC: https://appshunter.io/developer/1677403762

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*