Description
Codex Tutorial: How to Use the Codex App to Build iOS Apps
Learn how to set up and use the Codex app to start vibe coding your iOS apps! In this tutorial, I walk through everything from downloading the app to managing projects, choosing the right models, using plan mode, and extending your coding agent with plugins and MCP.
Whether you're a beginner or just switching from Claude Code, this Codex tutorial will get you up and running fast — and you can start for free.
⏱️ Timestamps:
0:00 — Intro: What is the Codex app?
0:20 — Codex vs Claude Code: Pricing comparison
1:56 — Codex vs Claude Code: Coding capabilities (Sol vs Opus)
2:54 — Claude Fable limitations
3:30 — Downloading & installing the ChatGPT/Codex app
4:49 — Creating your first project
5:21 — Organizing project folders
6:25 — Starting new chats & how project isolation works
7:15 — Source control basics
7:34 — Approval settings (Ask / Approve / Run)
8:25 — Plan mode: why you should use it first
9:00 — Choosing the right model for your plan
9:16 — How to check your usage limits
10:10 — Model strategy: plan with a strong model, implement with a lighter one
10:59 — Blue dots & the Codex pet feature
11:58 — Scheduled tasks: delegating work to your agent
12:43 — Remote access: monitor Codex from your phone
13:58 — Plugins & MCP: connecting third-party tools
16:04 — Pinned chats: keeping important conversations handy
17:04 — Outro & next steps
🔗 Links mentioned:
Download Codex: https://learn.chatgpt.com/docs/app
Source control tutorial: https://youtu.be/EwQgLYvLxiw
AI App Planning workflow: https://community.codewithchris.com/training
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