Build an App with AI · Real example

Vibe-code a Photoshop alternative with Codex: 20K users

Rebuilding a pricey tool people resent paying for can attract users fast.

20Kusers
$2,000+AI coding spend

Figures as shared by the creator · Reddit, r/vibecoding (checked Oct 22, 2026), not verified · source

From @AsejereDaDeje on Reddit (r/vibecoding) · Oct 2026 · Share

Source image for Vibe-code a Photoshop alternative with Codex: 20K users
Image from reddit.com

The Short Version

How u/AsejereDaDeje reached 20K users with OpenAI Codex, according to Reddit (r/vibecoding).

  • What: u/AsejereDaDeje spent over $2,000 on AI coding (Codex) to build a Photoshop replacement and cancel his own Adobe plan, then kept building from user feedback.
  • Result: The app crossed 20,000 users, he says it supports 99% of Photoshop's features (as posted in r/vibecoding, Sep 24, 2026).
  • Made with: OpenAI Codex
Key Facts
Whou/AsejereDaDeje
ToolOpenAI Codex
MoneyNot disclosed
TimeframeOct 2026
SourceReddit (r/vibecoding)
Self-reportedYes (money figures); platform numbers checked

Sources checked Oct 22, 2026Figures as shared by the creatorHow we check sources

The workflow

GoalBuild an App with AI
UseOpenAI Codex
$2,000+ResultAI coding spend

Made With

OpenAI CodexUse · OpenAI's coding agent for ChatGPT, your editor and the terminalTry OpenAI Codex AIMore Cases

Where & With What

What They Did

  1. 1The moveu/AsejereDaDeje spent over $2,000 on AI coding (Codex) to build a Photoshop replacement and cancel his own Adobe plan, then kept building from user feedback.
  2. 2Step 2Build one small app for one job
  3. 3Step 3Launch with an honest post
  4. 4ResultThe app crossed 20,000 users, he says it supports 99% of Photoshop's features (as posted in r/vibecoding, Sep 24, 2026).

Quick Answers

What tools do you need?

OpenAI Codex (openai's coding agent for chatgpt, your editor and the terminal).

How much does it cost?

OpenAI Codex is paid or trial-based. Check each tool's site for current prices.

Is it allowed?

Follow the platform rules and disclose ads.

Watch out: 20K users is reach, not revenue; the post does not share earnings.

Try It Yourself

The prompt · works in OpenAI Codex
(Our template, not the creator's prompt.) I want to build a small paid app that fixes one annoyance: [problem]. Write the feature list for version 1 (one job only), a 5-step build plan with an AI coding tool, and a short honest launch post.

Your first step

Open OpenAI Codex, paste the prompt above and swap the [brackets] for your own niche.

Full write-up & sources

Source: @AsejereDaDeje on Reddit (r/vibecoding) · Oct 2026. Summarised in our own words; figures as shared by the creator · Reddit, r/vibecoding (checked Oct 22, 2026), not verified. Updated .

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