# Mobile IDE for Codex AI GPT vs Harness Code

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.

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.

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.

## The numbers

| Metric | Mobile IDE for Codex AI GPT | Harness Code |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/mobile-ide-for-codex-ai-gpt/id6761128531/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Daily** |
| Monetization | Freemium | — |
| Size | 42 MB | 2 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Uladzsislau Luchkouski](https://appshunter.io/developer/1821242450) | [JADEN CALEB KWEK](https://appshunter.io/developer/6782401336) |

## What reviewers say

### Mobile IDE for Codex AI GPT

[App page](https://appshunter.io/ios/app/mobile-ide-for-codex-ai-gpt/id6761128531)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Codex Premium Monthly | $14.99 | per month |
| Codex Premium Yearly | $149.99 | per year |


### Harness Code

[App page](https://appshunter.io/ios/app/harness-code/id6782401334)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*