Happy vs NearbiJSX
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/
NearbiJSX
Instantly run and manage AI-generated code snippets without needing a development environment. Generate code directly in-app, edit with advanced features, and organize your creations with ease. Share your work or sync across devices.
- Instant JSX preview
- In-app AI code generation
- Advanced code editor
- Organize with folders and tags
- Nearby Share for file transfer
- iCloud sync
- Export JSX source files
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NearbiJSX is a universal app for running, saving, and managing AI-generated JSX artifacts on iPhone, iPad, and Mac. Copy a JSX artifact from your AI assistant, paste it into the app, and see it render instantly. No Xcode, no terminal, no development environment needed — just paste and run. Key Features - No Sign-Up Required — No account, no email, no login. Install and use instantly - Instant JSX Preview — Paste AI-generated JSX and see it render immediately with zoom controls (50%–200%) - AI Code Generation — Generate JSX directly in-app using your own API key (ChatGPT, Gemini, or GitHub Models free tier) - Code Editor — Edit JSX with CodeMirror 6, featuring syntax highlighting, JSX/TypeScript support, bracket matching, fold gutters, dark mode, and live test-run before saving - Save & Organize — Folders with color coding, tags, and favorites for your artifact library - Search — Full multi-token search across all saved files - Weather-Aware Home Screen — Personalized greeting with local weather data - Nearby Share — Send and receive JSX files directly between devices via local Wi-Fi - NearbiDoc Integration — Works alongside the NearbiDoc sister app for document management - Export — Save as JSX source files - iCloud Sync — Seamlessly sync your collection across iPhone, iPad, and Mac - 22 interface languages supported Bundled Libraries (Offline, No Downloads) NearbiJSX bundles the most popular libraries used in AI-generated artifacts — all offline, no CDN needed: - React 18 & Tailwind CSS 3 - Sucrase (fast JSX transpiler) & Babel - shadcn/ui components (Button, Card, Alert, Badge, Input, Dialog, and more) - Lucide React icons - Recharts (charts & graphs) - Lodash Your AI artifacts will look and work exactly as intended. How It Works 1. Paste JSX from your AI assistant — or generate it directly in-app 2. NearbiJSX transpiles (via Sucrase) and renders it instantly 3. Organize with folders, tags, and favorites 4. Export or share with nearby devices AI Code Generation Bring your own API key for ChatGPT, Gemini, or Anthropic. GitHub Models is also available with free daily limits — no API key purchase needed. Keys are stored locally in your device's Keychain and are never sent to our servers. Secure by Design All JSX runs in a sandboxed environment. Network calls, storage access, and dangerous APIs are blocked before your code executes. No data leaves your device unless you choose to export or share. Free Features JSX rendering, code editor, AI generation, and basic organization are all free. Free tier includes 1 folder, 2 files per folder, and 1 favorite. Pro Upgrade (One-Time Purchase, No Subscription) - Unlimited folders and unlimited files per folder - Up to 4 favorites - iCloud sync across devices - Nearby Share (P2P file transfer) - JSX export - Ad removal (iOS) - Pro editor on iPad + Mac (Live Preview, Code Outline, Smart Autocomplete) - App skins (Terminal, Retro Pop) NearbiJSX does not collect user data. All files are stored locally on your device or in your personal iCloud.
Screenshots
Verdict
The clearest difference is ads: Happy at none against NearbiJSX's shown. Happy also leads on rating (4.9 vs 4.5) and ratings volume (1K vs 2). On price, review sentiment, update cadence 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 NearbiJSX 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 4.5. That said, the two scores are not equally well evidenced: Happy has 1K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 72% of Happy's written reviews are positive against 67% of NearbiJSX's.
Both ship on a similar rhythm, roughly weekly. Both last shipped on October 24, 2026.
| Parameter | Happy | NearbiJSX |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (1K ratings) — better | 4.5 (2 ratings) |
| Positive reviews | 71.6% of reviews — better | 66.7% of reviews |
| Number of ratings | 1K — better | 2 |
| Update frequency | Weekly | Weekly |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #87 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.1 — better | 26.0 |
| Further details — not scored | ||
| Size | 98 MB | 26 MB |
| Age rating | 4+ | 9+ |
| Developer | Bulka, LLC | INX Company Limited |
Customer experience
Happy
NearbiJSX
In-app purchases
Happy
- Plus Plus Monthly$19.991 Month
NearbiJSX
- NearbiJSX Pro$9.99








