Comparison

Mobile IDE for Codex AI GPT vs Harness Code

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

Head to head
About

Mobile IDE for Codex AI GPT

This app provides a mobile interface for a desktop AI coding environment, allowing developers to edit code, run commands, manage Git, and interact with AI assistants from their iPhone. It enables productive use of idle moments by offering real-time access to projects and a built-in terminal.

Highlights
  • Real-time desktop bridge
  • Built-in terminal
  • Full Git support
  • Code editor with syntax highlighting
  • File explorer
  • Multiple AI agents
  • Hands-free voice input
Features
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Mobile IDE for Codex brings your desktop AI coding environment to your pocket. Browse your project, edit code, run commands, manage Git, and work with an AI assistant, all from your iPhone, no matter where you are. Built for developers who refuse to wait until they're back at their desk, Mobile IDE for Codex turns idle moments into productive ones. Review a pull request on your commute, fix a bug over coffee, or push a quick commit from the couch. Why Remote Access Matters Your best ideas don't always happen in front of a monitor. Mobile IDE for Codex gives you a direct, real-time channel to your desktop Codex so you can act on those ideas immediately, not hours later when you've already forgotten the details. Core Features - Real-Time Desktop Bridge. Your phone connects directly to Codex running on your Mac, Linux, or Windows machine. Every message, command, and response syncs instantly, with full conversation history on your device. - Built-In Terminal. Run shell commands and watch live output right from your phone, no laptop required. - Source Control. Full Git support: browse changes, review diffs line by line, and stage, commit, push, and pull without leaving the app. - Code Editor. Open, read, and edit project files on the go, with syntax highlighting for a comfortable mobile coding experience. - File Explorer. Navigate your entire workspace, jump to any file, and keep the whole project at your fingertips. - Multiple AI Agents. Create, pin, and switch between specialized agents (iOS, Android, UX, Q&A, or your own), each tuned for a different job. - Hands-Free Voice Input. Describe a bug, ask an architectural question, or dictate a change, all by voice, hands free. - Agents & Skills Catalog. Discover, install, and manage Codex plugins, skills, and prompt templates to supercharge your workflow. - Push Notifications. Get notified the moment a long-running task finishes, so you never sit and wait. - Sessions That Stay Alive. Network hiccups happen. Mobile IDE for Codex keeps your session context so you pick up right where you left off, with no re-authentication and no lost messages. Getting Started: It Takes Under a Minute 1. Install Codex on your Mac if you haven't already. 2. Open Mobile IDE for Codex on your iPhone and tap the connection link. 3. Open the provided link on the desktop where Codex is installed. 4. Follow the on-screen instructions, tap Connect, and you're up and running in under a minute. No complex configuration, no port forwarding, no VPN. The setup is designed to just work. Free to Try Start with free daily messages to experience the full workflow. When you're ready for unlimited access across all AI models, upgrade to a monthly or yearly plan. Customer Support For help, inquiries, or feedback, please reach out to support@luch.dev Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://experts-draw-9pm.craft.me/xGv1WeiMhVG1dH

About

Harness Code

Features
Read full description

Harness Code turns your computer's AI coding agents into a native phone experience. Start threads with Claude Code, Codex, or the built-in Harness engine — which brings 300+ models to your fingertips through your own OpenRouter key, no CLIs required. Watch replies stream live with full markdown, review the diffs and files your agents produce, answer their questions with a tap, and get a push notification when a long task finishes — from anywhere, over your own private Tailscale network. Built for real remote control, not just notifications. There's no cloud relay to lag, disconnect, or sit between you and your agent — your phone talks straight to your own computer over your private network. Sessions live on the computer, so nothing is lost if your phone sleeps or you drive through a tunnel: reopen the app and pick up exactly where the agent is. Steer mid-task, queue follow-ups, approve or deny actions, switch models and permission modes — everything you could do at the desk, from your pocket. Your computer does the work; your phone is the remote. Harness Code connects only to the harness server you run on your own Mac or Windows PC. No accounts, no middleman, no data leaves your devices. - Three engines: Claude Code, Codex, or the built-in agent with 300+ models via OpenRouter - Multiple concurrent threads, each with its own engine, model, and working directory - Streaming replies with markdown, code blocks, and tool-activity timelines - Reasoning summaries, per-message token/cost readouts, and usage-limit tracking - Preview HTML, PDFs, images, and code your agents create - Voice dictation, image attachments, slash commands, permission modes - Approve or deny agent actions remotely — even ones triggered by scheduled automations - Archive, search, drafts, and deep-linked push notifications Requires: a Mac or Windows PC running the free harness server (60-second install from harness-site.vercel.app). Bring your own AI: the Claude Code or Codex CLI signed into your subscriptions, an OpenRouter key, or all three. Not affiliated with Anthropic or OpenAI. Try Demo mode in-app to explore without a computer.

Screenshots

Mobile IDE for Codex AI GPT4 screens
Harness Code4 screens

Verdict

The call

The clearest difference is in-app purchases: Harness Code at none against Mobile IDE for Codex AI GPT's 2. Harness Code also leads on update cadence (daily vs every 5 weeks). 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. Mobile IDE for Codex AI GPT sells 2 in-app purchases, starting at $14.99 per month. Harness Code asks for nothing beyond the download.

UpkeepUpdate frequency

Mobile IDE for Codex AI GPT ships an update every 5 weeks, Harness Code daily. The most recent releases landed on October 14, 2026 and September 30, 2026 respectively.

Scorecard2 real differences · 8 level
Mobile IDE for Codex AI GPT versus Harness Code: the parameters behind the verdict, then further details
ParameterMobile IDE for Codex AI GPTHarness Code
PriceFreeFree
Rating4.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 5 weeksDaily — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPad — betteriPhone
Requires iOS18.617.0 — better
Further details — not scored
Size42 MB2 MB
Age rating4+4+
DeveloperUladzsislau LuchkouskiJADEN CALEB KWEK

In-app purchases

2 purchases

Mobile IDE for Codex AI GPT

Subscriptions2
  • Codex Premium Monthly$14.991 Month
  • Codex Premium Yearly$149.991 Year
None

Harness Code

No in-app purchases

Questions

Is Mobile IDE for Codex AI GPT free?
Mobile IDE for Codex AI GPT is free to download, with in-app purchases available.
Is Harness Code free?
Harness Code is free to download, with no in-app purchases.
Do Mobile IDE for Codex AI GPT or Harness Code have ads?
Neither Mobile IDE for Codex AI GPT nor Harness Code shows ads.
Which is updated more often, Mobile IDE for Codex AI GPT or Harness Code?
Mobile IDE for Codex AI GPT ships an update every 5 weeks, and Harness Code daily. Most recently, Mobile IDE for Codex AI GPT was updated on October 14, 2026 and Harness Code on September 30, 2026.

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