Comparison

Happier vs KKCode

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

Head to head
About

Happier

This app acts as a secure bridge for AI coding agents, allowing you to run and continue sessions from your computer on your phone. It supports collaboration, reliable session resuming, and full history access with end-to-end encryption.

Highlights
  • Collaborative coding sessions
  • Support for multiple AI providers
  • Persistent and resumable sessions
  • Seamless switching between devices
  • End-to-end encryption
  • Infinite message history
Features
Read full description

Happier is an open-source, end-to-end encrypted companion app for AI coding agents: Claude Code, Codex, OpenCode, Cursor, Pi, Grok, Gemini, Copilot, Qwen, Kimi, Kilo, Kiro, Auggie. Run sessions on your computer, and continue them from your phone. Use our desktop app or web app, and truly start working from anywhere. YOUR EXISTING SESSIONS? ALREADY THERE. Open any Claude Code, Codex or OpenCode session running on your computer — live, from your phone. Nothing to migrate, nothing to learn. APPROVE FROM ANYWHERE Your agent asks to run a command and you get a push notification with Allow and Deny on it. Sessions waiting on a decision rise to a "Needs attention" group at the top of your list; everything still running gathers under "Working". REVIEW THE DIFF. SEND NOTES TO YOUR AGENTS. Browse every line your agent changed. Mark the exact lines you want addressed, choose which notes to send, and hand them straight back — same session, or a new one. EDITOR. GIT. TERMINAL. ONE TAP AWAY. Chat, files, Git and a live terminal, each its own tab. Open a file to read or edit it, review the diff, manage branches and open a pull request. YOU LOVE THE TERMINAL? WE DO TOO. If you want, you can keep running Claude Code, Codex or OpenCode in their native TUI. Happier mirrors them to every device, so you can follow along, send messages and approve permissions from anywhere — and switch between the terminal and Happier whenever you like. A COLLEAGUE YOU CAN TALK TO The voice assistant watches every running session. Brainstorm the next change, approve a permission or send a message, without picking up the phone. YOUR SESSIONS WORK AS A TEAM A session can start another session, send it messages and read its transcript — so a Claude session and a Codex session can split the work between them. Each one still runs its own subagents, on whichever backend you choose. USE THE SUBSCRIPTIONS YOU ALREADY PAY FOR Happier reuses the subscriptions and logins your existing CLIs already use — Claude, Codex, Cursor, Gemini, OpenCode. No new bill, no double billing, and Happier sells no AI of its own. POOL YOUR ACCOUNTS. KEEP THE SESSION GOING. Link accounts you own into a pool and watch usage and quota resets for every one of them in the app. Nothing switches until you build a pool — once you have, Claude Code and Codex sessions can change account without stopping, moving to whichever member has the most quota left, at most once a turn and never past a reset time the provider has published. OPEN SOURCE. END-TO-END ENCRYPTED. Your messages, prompts and session content are encrypted on your device before they reach a server: AES-256-GCM under a key drawn for that one session, sealed to an account key that is created on a device and never leaves your devices. The relay stores ciphertext and has nothing to open it with. Put the relay on your own hardware with one command — happier relay host install — or reach your computer over Tailscale and use no relay at all. FREE, AND MIT LICENSED The CLI, the mobile apps, the desktop app, the web app and the relay. No seat count, no trial, no feature gate. github.com/happier-dev/happier HOW TO START 1. On your computer: curl -fsSL https://happier.dev/install | bash (Windows: iwr https://happier.dev/install.ps1 -useb | iex) 2. Scan the QR code your terminal prints, with this app. 3. Start a session from the app, or run "happier claude" or "happier codex" in your terminal. REQUIRES A COMPUTER Happier is the client for agents running somewhere you control. It does not run an agent in the cloud, and your repository is never copied to us: the agent reads and writes files on the computer it runs on, and that computer stays the only full copy. Not affiliated with, or endorsed by, Anthropic, Google, GitHub or Cursor.

About

KKCode

This mobile client connects to an AI coding agent running on your Mac, offering AI-powered coding assistance on the go. It supports multiple AI models, real-time streaming responses, and rich markdown rendering for an enhanced development experience.

Highlights
  • Connects to local OpenCode server
  • Supports multiple AI models
  • Real-time streaming responses
  • Code and Markdown rendering with syntax highlighting
  • Tool call transparency
  • Image attachment support
  • Session management and organization
Features
Read full description

KKCode is the mobile client for OpenCode — the AI coding agent that runs on your Mac. Connect to your local OpenCode server over Wi-Fi or Tailscale, and bring AI-powered coding assistance wherever you go. FEATURES • Multiple AI Models — Switch freely between DeepSeek, Zhipu, Qwen, Kimi, MiniMax, and any model supported by your OpenCode server. Model preferences are remembered per session and persist across conversations. • Streaming Responses — Responses stream in real time. Scroll freely while the AI is generating; KKCode keeps your position and never interrupts your reading experience. • Code & Markdown Rendering — Enjoy full syntax highlighting for code blocks, inline formatting, and rich markdown display. • Tool Call Transparency — See exactly which tools the AI invoked, review file changes, and inspect inputs and outputs for every tool call. • Image Attachment — Send screenshots or design mockups directly from your photo library. • Session Management — Organize conversations by project directory. Rename, swipe to delete, or bulk remove sessions whenever you need. • Split View Support — Keep your session list and active chat side by side for a desktop-class multitasking experience. • Offline-Safe Draft — Your unfinished messages are automatically saved per session and restored when you return. • Multi-language Support — English, 简体中文, 繁體中文, 日本語, 한국어, Deutsch, Français, Português, Русский. • Dark & Light Mode — Automatically follows your system appearance. HOW IT WORKS KKCode connects to the OpenCode server running on your Mac. Start the server with: opencode serve –hostname 0.0.0.0 –port 4096 Then add your server connection in KKCode and start chatting. For remote access outside your home network, Tailscale is recommended. KKCode requires an OpenCode server to function. It does not include built-in AI inference or AI models.

Screenshots

Happier4 screens
KKCode4 screens

Verdict

The call

The clearest difference is rating: KKCode at 5.0 against Happier's 4.4. KKCode also leads on update cadence (fortnightly vs every 5 weeks). Happier's advantage is chart position (#155 vs unranked). On price, review sentiment, ratings volume 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

KKCode holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 10 and 8 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Happier ships an update every 5 weeks, KKCode fortnightly. The most recent releases landed on October 7, 2026 and October 10, 2026 respectively.

Scorecard3 real differences · 8 level
Happier versus KKCode: the parameters behind the verdict, then further details
ParameterHappierKKCode
PriceFreeFree
Rating4.4 (10 ratings)5.0 (8 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings10 — better8
Update frequencyEvery 5 weeksFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank#155 — better—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better16.4
Further details — not scored
Size151 MB89 MB
Age rating4+4+
DeveloperLeeroy Brun军保 张

Customer experience

Happier

All ratings10 ratings
Positive90.0%
Neutral0.0%
Negative10.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

KKCode

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews8 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Happier

No in-app purchases

None

KKCode

No in-app purchases

Questions

Is Happier free?
Happier is free to download, with no in-app purchases.
Is KKCode free?
KKCode is free to download, with no in-app purchases.
Which has better reviews, Happier or KKCode?
KKCode is rated higher. Happier averages 4.4 out of 5 from 10 ratings, while KKCode averages 5.0 from 8 ratings.
Do Happier or KKCode have ads?
Neither Happier nor KKCode shows ads.
Which is updated more often, Happier or KKCode?
Happier ships an update every 5 weeks, and KKCode fortnightly. Most recently, Happier was updated on October 7, 2026 and KKCode on October 10, 2026.

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