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Happy: Codex & Claude Code App

Happy: Codex & Claude Code App

Codex & Claude Code on the go

1K ratings
67 reviews
#32 in top-grossing Developer Tools
📊 Productivity
🛠️ Developer Tools
Free
In-App Purchases

Details

Released
July 21, 2025
Updated
October 7, 2026

Features

Developer

Bulka, LLC
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📈no. 32
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About

This app provides a secure mobile interface for AI coding assistants, allowing you to continue sessions and monitor progress from anywhere. It features end-to-end encryption and a zero-knowledge architecture for ultimate privacy. Seamlessly switch between desktop and mobile for uninterrupted AI coding.

✓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
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What's New in Happy

1.8.0

October 7, 2026

Major UI refresh, Happy harness support

1

Subscriptions & In-App Purchases

Plus Plus Monthly

Plus Plus monthly subscription

$19.991 Month
How to cancel Happy subscription ⁉️

Charts

Top Grossing

📈 32+5

Developer Tools

This app rose +5 positions in Developer Tools chart.

Last updated on October 28, 2026.

Top Free

📉 79-3

Developer Tools

This app dropped -3 positions in Developer Tools chart.

Last updated on October 28, 2026.

User reviews

Most RecentHighest RatedLowest Rated

most enjoyable dev tool

feels smooth, better than claude, codex app woth remote controll
ЛСЛюбящий патриот своей страны

Perfectible mais fonctionnel !

J’en ai testé des solutions pour du faire remote dev. opencode, kilo, codex, claude … mais je reviens toujours à celle-ci.
Vvivanno

Amazing - one of the only reliable ways to code from my phone

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
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CCurranvw

Godly

God
YGYoussef Guessous

Slop

Sorry but, the app is slop.
NNickolasaaaa
See 62 more reviews

Developer apps

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FAQ

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.