Comparison

Happy vs MuxCLI

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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/

About

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.

Highlights
  • 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
Features
Read full description

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

Happy4 screens
MuxCLI4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

Happy ships an update weekly, MuxCLI every 4 weeks. The most recent releases landed on September 28, 2026 and September 15, 2026 respectively.

Scorecard8 real differences · 3 level
Happy versus MuxCLI: the parameters behind the verdict, then further details
ParameterHappyMuxCLI
PriceFreeFree
Rating4.9 (991 ratings) — better2.0 (1 ratings)
Positive reviews71.2% of reviews — better0.0% of reviews
Number of ratings991 — better1
Update frequencyWeekly — betterEvery 4 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
Best chart rank#40 — better—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better17.0
Further details — not scored
Size92 MB2 MB
Age rating4+4+
DeveloperBulka, LLCTim Chen

Customer experience

Happy

All ratings991 ratings
Positive96.9%
Neutral0.9%
Negative2.2%
Written reviews66 reviews
Positive71.2%
Neutral10.6%
Negative18.2%

MuxCLI

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

1 purchases

Happy

Subscriptions1
  • Plus Plus Monthly$19.991 Month
1 purchases

MuxCLI

One-time1
  • MuxCLI Lifetime Unlock$4.99

Questions

Is Happy free?
Happy is free to download, with in-app purchases available.
Is MuxCLI free?
MuxCLI is free to download, with in-app purchases available.
Which has better reviews, Happy or MuxCLI?
Happy is rated higher. Happy averages 4.9 out of 5 from 991 ratings, while MuxCLI averages 2.0 from 1 ratings.
Do Happy or MuxCLI have ads?
Neither Happy nor MuxCLI shows ads.
Which is updated more often, Happy or MuxCLI?
Happy ships an update weekly, and MuxCLI every 4 weeks. Most recently, Happy was updated on September 28, 2026 and MuxCLI on September 15, 2026.

Other comparisons