# Mobile IDE for Codex AI GPT vs JSON Viewer

The clearest difference is in-app purchases: JSON Viewer at none against Mobile IDE for Codex AI GPT's 2. Mobile IDE for Codex AI GPT's advantage is update cadence (every 5 weeks vs every 4 months). 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. JSON Viewer asks for nothing beyond the download.

Mobile IDE for Codex AI GPT ships an update every 5 weeks, JSON Viewer every 4 months. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Mobile IDE for Codex AI GPT | JSON Viewer |
| --- | --- | --- |
| 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** | Every 4 months |
| Monetization | Freemium | — |
| Size | 42 MB | 4 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Uladzsislau Luchkouski](https://appshunter.io/developer/1821242450) | [LEAN ASIA CO., LTD](https://appshunter.io/developer/1815050814) |

## 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 |


### JSON Viewer

[App page](https://appshunter.io/ios/app/json-viewer-formatter-tree/id6772258771)

**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 JSON Viewer free?

JSON Viewer is free to download, with no in-app purchases.

### Do Mobile IDE for Codex AI GPT or JSON Viewer have ads?

Neither Mobile IDE for Codex AI GPT nor JSON Viewer shows ads.

### Which is updated more often, Mobile IDE for Codex AI GPT or JSON Viewer?

Mobile IDE for Codex AI GPT ships an update every 5 weeks, and JSON Viewer every 4 months. Most recently, Mobile IDE for Codex AI GPT was updated on October 14, 2026 and JSON Viewer on October 7, 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.*