Happy vs Tmux Term
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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Your coding agent shouldn't wait for you to get back to your desk. A task can run for an hour and then stop five minutes in to ask for permission or a decision. Happy lets you answer from your phone, and the same agent carries on in the same repository with the same tools and context. Happy is the mobile app for Claude Code and Codex. The agents keep running on your own computer, and your phone is how you start them, steer them and review their work. WHAT YOU CAN DO FROM YOUR PHONE • Start a new session or pick up one you began at your desk • Get notified when an agent needs input or finishes • Approve or deny permission requests, or let a session run in Auto mode • Choose the model and reasoning effort from the providers set up on your computer • Review changes: a file list, colored diffs, and the full set of changes on a branch • Attach a screenshot or photo to your prompt • Browse sessions in one list or grouped by project, with each checkout's chats as tabs • Open a side chat next to a session without losing your place • Drafts follow you between your phone and your computer HOW IT WORKS Happy runs on your computer, and this app connects to it. 1. Install Happy Desktop from happy.engineering, or if you prefer the terminal, run: npm install -g happy 2. Create an account in the app. You don't need an email address or a password. 3. Scan the QR code your computer shows to link it to your phone. Then start a session from either device. What you see on your phone is the same live session that's running on your computer. YOU WILL NEED • A computer running Happy Desktop or the Happy CLI • Access to the coding agents you want to use, such as a Claude or ChatGPT/Codex plan or API key. Happy uses your existing accounts. PRIVATE BY DESIGN Sessions are end-to-end encrypted. Your code, agent and encryption keys stay on your devices. Happy's servers only relay and store encrypted session data and can't read your prompts, responses or code. OPEN SOURCE The app, the CLI and the server are MIT-licensed and on GitHub. Read the code, run your own build or host your own server. ALSO ON DESKTOP Happy Desktop adds a harness that works across providers and lets you switch models in the middle of a task. The sessions it starts show up on your phone too. Happy is an independent project. It is not affiliated with or endorsed by Anthropic or OpenAI. Claude and Claude Code are trademarks of Anthropic. Codex and ChatGPT are trademarks of OpenAI. Privacy Policy: https://happy.engineering/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Tmux Term
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Tmux Term turns your iPhone into a real terminal. SSH into your servers, attach to tmux sessions that never die, and run AI coding agents — from the train, the couch, or anywhere your laptop isn't. Built for developers who don't stop working when they leave the desk. — SECURE BY DESIGN — Password and private-key auth (ed25519, RSA). Host keys are pinned on first connect to stop man-in-the-middle attacks. Every credential lives in the iOS Keychain and never leaves your device. No accounts on our servers, no telemetry on your sessions. — TMUX THAT SURVIVES ANYTHING — Attach to long-running sessions, switch windows, and scroll back through history. Drop a connection in a tunnel? Tmux Term reconnects and reattaches the moment you're back — your work is exactly where you left it. — AI CLI, ONE TAP AWAY — Launch Claude Code, Codex, Gemini, OpenCode, or Nmap instantly and resume sessions where you stopped. The remote agents you already use, now driven from your phone. — SEND SCREENSHOTS STRAIGHT TO CLAUDE — Upload images over SFTP directly into your Claude Code conversation. No clipboard tricks, no base64 paste — just pick a photo and go. — A KEYBOARD THAT ACTUALLY WORKS ON MOBILE — Ctrl, Esc, Tab, arrows, function keys, the tmux prefix, one-tap password injection, and custom snippets — all sitting right above the iOS keyboard, where your thumbs can reach them. — GESTURES MADE FOR A PHONE — Two-finger scroll through terminal history. Side buttons for tmux copy-mode. Toggle mouse mode with a single tap. This isn't a desktop client squeezed onto a screen — it's designed for the device in your hand. — ONE PRICE, FOREVER — Try everything free for 7 days. Then unlock it all with a single purchase. No subscriptions, no upsells, no ads. Future updates included. Tmux Term is a purpose-built SSH and tmux client. You'll need a server you own or have permission to access.
Screenshots
Verdict
The clearest difference is in-app purchases: Tmux Term at none against Happy's 1. Tmux Term also leads on update cadence (every 2 days vs weekly). Happy's advantage is chart position (#97 vs unranked) and device support (3 vs 1). On price and ads 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. Tmux Term asks for nothing beyond the download.
Happy ships an update weekly, Tmux Term every 2 days. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.
| Parameter | Happy | Tmux Term |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (1K ratings) — better | — |
| Positive reviews | 71.6% of reviews | — |
| Number of ratings | 1K — better | — |
| Update frequency | Weekly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Best chart rank | #97 — better | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 98 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Bulka, LLC | Erdinc Curebal |
In-app purchases
Happy
- Plus Plus Monthly$19.991 Month
Tmux Term
No in-app purchases









