Who it is for
iOS developers using Codex who want build, profiling, and simulator debugging in one plugin.
Overview
What Build iOS Apps does
An OpenAI plugin for Codex covering iOS work from design through debugging. It designs App Intents and App Shortcuts, writes or restructures SwiftUI interfaces, and renders SwiftUI previews inside the Codex in-app browser.
The diagnostic half carries equal weight: auditing runtime performance, capturing ETTrace profiles, chasing memory leaks, and debugging on the simulator through XcodeBuildMCP-backed workflows. Guidance on newer iOS conventions, Liquid Glass among them, is part of the package.
The plugin reads and writes files and runs interactively. Its eight skills span App Intents, SwiftUI patterns and performance audits, ETTrace profiling, memory graph analysis, and simulator debugging.
What stands out
The performance tooling is specific rather than general: ETTrace profiles and memory graph inspection.
Availability
Where Build iOS Apps is listed
Build iOS Apps is listed in the ChatGPT apps directory only. OpenAI has no connector under the same domain in the Claude directory; 392 of the 3,150 products here are on both marketplaces, and this is not one of them.
ChatGPT apps are built on MCP, and the same server can back a Claude connector, so the absence is a distribution decision rather than a technical one.
ChatGPT listing
In the ChatGPT apps directory
- Developer
- OpenAI
- Filed under
- Developer Tools
- Listed since
- April 2026
- Authentication
- Authenticates when installed
- Website
- openai.com
- Policies published
- Privacy policy · Terms of service
- Official listing
- Open in ChatGPT
- Snapshot
- August 2026
Named skills
Build iOS Apps declares 9 named skills, which puts it in the 6.7% of ChatGPT-listed apps that do.
- ios-app-intents
- ios-debugger-agent
- ios-ettrace-performance
- ios-memgraph-leaks
- ios-simulator-browser
- swiftui-liquid-glass
- swiftui-performance-audit
- swiftui-ui-patterns
Example prompts from the listing
- Build or debug an iOS app with SwiftUI, App Intents, and Simulator.
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This is an independent catalogue entry compiled by Node8 from Build iOS Apps's public marketplace listing as it stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with OpenAI, and inclusion here is not an endorsement.
Want your company reachable inside ChatGPT and Claude?
Node8 builds MCP servers end to end: deciding which tools are worth exposing, the authentication and permission model, the review submissions, and the onboarding that gets them used. One server serves ChatGPT, Claude, and Microsoft Copilot.