Happy vs MuxCLI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Happy
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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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/
MuxCLI
Manage AI coding sessions on your server directly from your iPhone. Create, attach, and resume tmux-backed sessions for various AI CLIs and shell workflows. Continue prompt work without losing context and send terminal input with mobile-friendly controls.
- Run AI coding sessions remotely
- Manage tmux-backed sessions
- Resume interrupted workflows
- Send terminal input from mobile
- Receive attention signals
- Pair phone with server quickly
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MuxCLI lets you run and manage AI coding sessions on your own server from iPhone. Create, attach, detach, and resume tmux-backed sessions for Codex CLI, Gemini CLI, Claude Code, and shell workflows. Use MuxCLI to: - Pair your phone with your server in seconds - Browse existing sessions and create new ones - Continue prompt workflows without restarting context - Send terminal input with mobile-friendly control keys - Get attention-required signals when a session needs your input MuxCLI is designed for long-running development sessions where your server does the heavy work and your phone acts as the control surface.
Screenshots
Verdict
The clearest difference is review sentiment: Happy at 71% against MuxCLI's 0%. Happy also leads on rating (4.9 vs 2.0) and ratings volume (991 vs 1). MuxCLI's advantage is monetization model (free vs free with in-app purchases). On price, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Happy sells 1 in-app purchase, starting at $19.99 per month and MuxCLI sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Happy holds the better App Store score, 4.9 against 2.0. That said, the two scores are not equally well evidenced: Happy has 991 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 71% of Happy's written reviews are positive against 0% of MuxCLI's.
Happy ships an update weekly, MuxCLI every 4 weeks. The most recent releases landed on September 28, 2026 and September 15, 2026 respectively.
| Parameter | Happy | MuxCLI |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (991 ratings) — better | 2.0 (1 ratings) |
| Positive reviews | 71.2% of reviews — better | 0.0% of reviews |
| Number of ratings | 991 — better | 1 |
| Update frequency | Weekly — better | Every 4 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #40 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 92 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Bulka, LLC | Tim Chen |
Customer experience
Happy
MuxCLI
In-app purchases
Happy
- Plus Plus Monthly$19.991 Month
MuxCLI
- MuxCLI Lifetime Unlock$4.99









