Comparison

Happy vs LeCodes

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

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/

About

LeCodes

Instantly preview and interact with mobile applications and games built on a specific platform. Explore native user interfaces, interactive scenes, 3D environments, and AR content without needing to install anything. Ideal for developers and designers testing their creations.

Highlights
  • Launch le.codes apps instantly
  • Experience native UI and animations
  • Interact with 3D scenes and mini-games
  • Test AR-ready content
  • No installation required
  • Seamless web editor integration
Features
Read full description

LeCodes App Viewer lets you open and explore applications built with the le.codes platform — directly on your device and without installation steps. Use the app to preview real interfaces, interactive scenes, 3D environments, mini-games, brand experiences, and more. Highlights: Launch apps built with le.codes instantly Experience native UI, animations, and transitions Try interactive projects, mini-games, and 3D scenes Test brand experiences and AR-ready content No installation or setup required Works seamlessly with the le.codes web editor Whether you're developing a new app, testing UI concepts, or sharing prototypes with your team, LeCodes App Viewer helps you interact with your creations directly on your device.

Screenshots

Happy4 screens
LeCodes4 screens

Verdict

The call

The clearest difference is review sentiment: Happy at 72% against LeCodes's 0%. Happy also leads on chart position (#80 vs unranked). LeCodes's advantage is in-app purchases (none vs 1) and update cadence (every 3 days vs weekly). On price, ads, device support and iOS requirement 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. LeCodes asks for nothing beyond the download.

UpkeepUpdate frequency

Happy ships an update weekly, LeCodes every 3 days. The most recent releases landed on October 11, 2026 and September 29, 2026 respectively.

Scorecard5 real differences · 6 level
Happy versus LeCodes: the parameters behind the verdict, then further details
ParameterHappyLeCodes
PriceFreeFree
Rating4.9 (1K ratings) — better—
Positive reviews71.6% of reviews — better0.0% of reviews
Number of ratings1K — better—
Update frequencyWeeklyEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#80 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size98 MB17 MB
Age rating4+4+
DeveloperBulka, LLCMikhail Sitnikov

Customer experience

Happy

All ratings1,024 ratings
Positive96.7%
Neutral1.0%
Negative2.3%
Written reviews67 reviews
Positive71.6%
Neutral10.4%
Negative17.9%

LeCodes

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

1 purchases

Happy

Subscriptions1
  • Plus Plus Monthly$19.991 Month
None

LeCodes

No in-app purchases

Questions

Is Happy free?
Happy is free to download, with in-app purchases available.
Is LeCodes free?
LeCodes is free to download, with no in-app purchases.
Do Happy or LeCodes have ads?
Neither Happy nor LeCodes shows ads.
Which is updated more often, Happy or LeCodes?
Happy ships an update weekly, and LeCodes every 3 days. Most recently, Happy was updated on October 11, 2026 and LeCodes on September 29, 2026.

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