Codex App vs VS Code: When to Use the Standalone Desktop App

Mar 13, 2026

The Problem

I saw a question on Reddit that stopped me:

“Is there any point in using the Codex App over VS Code?”

I had been using Codex CLI with VS Code for months. The standalone Codex App seemed redundant. Why would I need another application when I already have my editor set up?

But then I hit a wall. I was working on three different projects at once, switching between terminal tabs, losing track of which conversation was about which codebase. I realized I needed to actually test both approaches.

What I Found

The Three Ways to Use Codex

There are three main workflows:

Codex CLI only - Terminal commands, maximum control
VS Code with Codex CLI - Editor + terminal side by side
Codex App (standalone) - Dedicated GUI application

I tested all three over a week of real work. Here’s what I learned.

VS Code + CLI: My Default Setup

My normal workflow looked like this:

$ cd ~/projects/frontend-app
$ codex
> Fix the authentication bug in src/auth.ts

# Switch to VS Code to see changes
# Switch back to terminal for next command
# Repeat

This works fine for single projects. But when I added more:

Tab 1: frontend-app (auth bug)
Tab 2: backend-api (database migration)
Tab 3: shared-libs (version bump)
Tab 4: docs-site (typo fix)

I kept losing context. Which tab was I in? What was I doing?

The Reddit comment that clicked:

“Just use CLI with VS Code much better.”

Yes, for single projects. But not for juggling multiple repos.

Where the Standalone App Wins

I gave the Codex App a real try. Here’s what it does better:

Named conversation threads:

Project: frontend-app
  - Auth bug fix (March 10)
  - Add dark mode (March 11)
  - Performance optimization (March 12)

Project: backend-api
  - Database migration (March 10)
  - Add rate limiting (March 12)

Each conversation has a name. I can find it later. No more scrolling through terminal history.

Multi-repository queries:

One Reddit user mentioned:

“Its really good to ask questions cross repository. For coding except if you full vibe code without reading output, I wouldn’t use it.”

This is the killer feature. In the App, I can ask about code across multiple projects without managing multiple terminal sessions.

Visual project switching:

Click a project. Start talking. No cd commands, no tab management.

Where VS Code Still Wins

But VS Code has advantages too. Another comment:

“My default is CLI with IntelliJ on the side for easy diff viewing.”

VS Code (or IntelliJ) gives you:

Inline code suggestions
Diff viewer showing exactly what changed
File explorer context
All your extensions

The CLI + VS Code combo works when:

You need to see diffs clearly
You’re working in one main project
You want inline suggestions as you type
Your workflow is mostly in the editor anyway

The Use Case Split

After testing both, I realized they serve different purposes.

Use Codex App When:

Multi-project management: You’re switching between 3+ repositories daily. The App keeps conversations organized by project.

Prefer buttons over commands: One Reddit user said:

“For me who isn’t AS technical it’s better and faster (I like clicking buttons instead of typing commands)”

If you prefer GUI to terminal, the App feels natural.

Cross-repository questions: Need to ask “How does the auth flow in frontend-app connect to backend-api?” The App handles this better than juggling terminal tabs.

Visual conversation history: You want to find a conversation from last week without grepping through shell history.

Use VS Code + CLI When:

Tight editor integration: You want suggestions inline as you type. You want to see diffs before accepting changes.

Single project focus: You’re deep in one codebase. No need for project switching.

Maximum control: The CLI gives you every option. VS Code gives you visual context. Together, they’re powerful.

Remote development: Working over SSH? CLI + VS Code Remote works smoothly. The App needs more setup.

How I Tested

I spent one week with each approach.

Week 1: VS Code + CLI Only

# Morning: frontend work
cd ~/projects/frontend-app
codex "Add loading state to the dashboard component"

# Afternoon: backend work
cd ~/projects/backend-api
codex "Optimize the database query for user profiles"

# End of day: lost track of which changes were where

Result: Productive but disorganized. I had to check git status in each project to remember what I’d done.

Week 2: Codex App Only

Open App
Click "frontend-app" project
Ask: "Add loading state to dashboard"
Click "backend-api" project
Ask: "Optimize user profiles query"
Close App

Result: Better organization. But I missed seeing diffs in my editor.

Week 3: Hybrid Approach

I found my preferred workflow:

Use the App for project management and cross-repo questions
Use VS Code + CLI for actual coding changes where I need to see diffs
Use CLI alone for quick questions or automation

This gave me the best of both worlds.

Common Mistakes

Mistake 1: Dismissing the App as unnecessary

I did this initially. “Why would I need another app?” But the project organization actually helps when you have 3+ active projects.

Mistake 2: Forcing VS Code for everything

VS Code is great for coding. But not for managing multiple parallel conversations about different codebases.

Mistake 3: Ignoring the CLI

Some people jump straight to the App and miss CLI power. The terminal gives you:

Scripting capabilities
CI/CD integration
Remote server work
Full control over every option

Mistake 4: Not considering hybrid workflows

I assumed I had to pick one. But combining approaches works better than choosing.

Feature Comparison

Feature	CLI Only	VS Code + CLI	Codex App
Project switching	`cd` commands	Terminal tabs	Click to switch
Conversation history	Shell history	Terminal history	Named threads
Diff viewing	None	Full diff support	Limited
Multi-repo queries	Manual	Manual	Built-in
Remote development	Full support	Full support	Limited
GUI preference	No	Partial	Full
Automation/scripts	Full support	Limited	None
Cross-repo context	Manual copy	Manual copy	Automatic

For single-project developers: Stick with VS Code + CLI. You don’t need the overhead of another application.

For multi-project juggling: Try the Codex App. The project organization and named conversations save mental overhead.

For CLI power users: Keep using CLI. The App doesn’t add much if you’re comfortable with terminal workflows.

For teams: The App might help non-technical team members who prefer clicking over typing.

The Real Question

The Reddit question “Is there any point in using it over VS Code?” missed something important.

It’s not either/or. It’s about matching the tool to the task:

Quick edit in a single file? CLI or VS Code extension
Multi-project reorganization? Codex App
Need to see exactly what changed? VS Code diff viewer
Asking questions across repositories? Codex App

The right answer is: use each for what it does best.

Summary

I started thinking the Codex App was redundant. After testing, I see it fills a specific gap: managing AI conversations across multiple projects with visual organization.

VS Code + CLI still wins for tight editor integration and diff viewing. But when I’m juggling frontend, backend, shared libraries, and documentation all in one day, the standalone App keeps my conversations organized in a way terminal tabs never could.

The best approach? Use both. Switch based on what you’re doing, not based on tribal loyalty to one tool.

Final Words + More Resources

My intention with this article was to help others share my knowledge and experience. If you want to contact me, you can contact by email: Email me

Here are also the most important links from this article along with some further resources that will help you in this scope:

Oh, and if you found these resources useful, don’t forget to support me by starring the repo on GitHub!