Comparison

Happier vs Code Island Buddy

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

Code Island Buddy

Features
Read full description

Code Island Buddy 是 Code Island Mac 应用的 iPhone 与 Apple Watch 伴随端。 它会把 Mac 上当前 AI agent 的状态同步到 iPhone、灵动岛、锁屏、StandBy 和 Apple Watch。你可以快速查看当前会话、工作区、工具调用、最近动态,以及需要你回答的问题。 适合希望在 Mac 外继续关注 AI 编程会话的开发者:当 agent 正在处理、等待审批、遇到问题或进入空闲状态时,iPhone 和 Apple Watch 都能给你一个轻量的状态窗口。 主要功能: - iPhone 端连接 Mac 上的 Code Island - 灵动岛和锁屏实时活动展示当前会话 - StandBy 横屏展示一个或多个会话状态 - Apple Watch app 和小组件同步最新状态 - 演示模式可在没有 Mac 的情况下预览完整体验 本应用不需要账号,不依赖外部服务器。设备之间的同步发生在你的本地网络和 Apple 设备能力内。

Screenshots

Happier4 screens
Code Island Buddy4 screens

Verdict

The call

The clearest difference is chart position: Happier at #161 against Code Island Buddy's unranked. On price, ads, in-app purchases and device support 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.

Scorecard1 real difference · 10 level
Happier versus Code Island Buddy: the parameters behind the verdict, then further details
ParameterHappierCode Island Buddy
PriceFreeFree
Rating4.4 (10 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings10 — better—
Update frequencyEvery 5 weeks—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
Best chart rank#161 — better—
DevicesiPhone, iPadiPhone, Apple Watch
Requires iOS16.0 — better17.0
Further details — not scored
Size151 MB5 MB
Age rating4+4+
DeveloperLeeroy Brun昊南 夏

In-app purchases

None

Happier

No in-app purchases

None

Code Island Buddy

No in-app purchases

Questions

Is Happier free?
Happier is free to download, with no in-app purchases.
Is Code Island Buddy free?
Code Island Buddy is free to download, with no in-app purchases.
Do Happier or Code Island Buddy have ads?
Neither Happier nor Code Island Buddy shows ads.

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