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Vibe code a music game companion app with an 8-year-old using ChatGPT and Base44

WorkedEvidence: Article or interviewPosted Last checked

Boo Kok Chuon and an 8-year-old built a game companion app in three hours with ChatGPT, Base44 and Nano Banana Pro.

How to use this

  1. Tap Copy prompt.
  2. Open the tool the case used (or a similar one) and paste the prompt; results may differ from the original.
  3. Paste it into the message box.
  4. Send it, then read the answer before acting on it.
New to this? What's a prompt?

A prompt is the message you send to the AI tool. Copy the one on this page, put your own details where it asks, and read the answer before you act on it.

Prompt

Recreated prompt

The source didn't share its exact prompt, so we wrote one from what it describes. The result shown is the source's, not ours.

What the prompt labels mean

The person didn't share their exact words, so we wrote this from what they described. We haven't tested it, and they didn't use this exact version.

My 8-year-old and I want to build a simple companion app for our music-learning board game. It needs a score tracker, a keyboard that plays notes, and a countdown timer. Help us plan the features and write clear step-by-step prompts we can paste into an app builder.

Try this in:

Sends the Recreated prompt shown above. ChatGPT and Grok open with it filled in, and ChatGPT may send it straight away. Gemini and Claude open empty, so we copy the prompt for you to paste. Every button also copies it.

Opens in a new tab. We don't see what you send.

These links are only a shortcut. We're not affiliated with OpenAI, Google, Anthropic or xAI, and your results may not match the source.

Optional stronger version

Our rewrite with extra checks. The poster didn't test it.

Before you start, ask me 1–3 short questions about the details below and wait for my answers. Once I've answered, confirm the plan in one line and run the whole task start to finish.

Goal: Help a parent and child plan a small app and turn the child's ideas into prompts for an AI app builder.

Questions to ask me first:
- What does the app need to do, in the child's own words?
- Which app builder and image tool will you use?
- How old is your child, and how much time do you have?

Inputs (fill in or confirm):
- App idea and features: [FEATURES]
- App builder: [APP BUILDER]
- Image tool for the mascot or art: [IMAGE TOOL]
- Child's sketch or description: [UPLOAD PHOTO OR DESCRIBE]

Rules:
- Let the child decide the features; ask the child simple questions and use the child's words.
- Break the build into small steps, one feature at a time, each with a prompt we can paste into the app builder.
- For pictures, show how to describe purpose, shape, colors and expression so results stay consistent.
- Keep it to a simple app with no accounts, payments or personal data.
- Remind us that a grown-up should review everything before sharing it.

Checkpoint: After the feature list and the first prompt, stop so we can try it and tell you what happened.

If you get stuck: If a step doesn't work in the builder, ask us what we see on screen and give a smaller next step.

Verify before you finish: Check that every feature on the list has a prompt and nothing needs personal data.

Output: A short feature list, numbered build prompts, and 2–3 image prompts for the mascot.

Done when: We have a working app with the features the child picked.

AI tools

ChatGPTBase44Nano Banana Pro

Outcome

Boo Kok Chuon, a law firm COO in Singapore, built a companion app with Kiki, an 8-year-old daughter, for the family's physical game Mu Jong, a music-learning mahjong-style game. They finished it within three hours. ChatGPT handled prompt development and logic structuring, Base44 built the interface, and Nano Banana Pro made the visual assets. The app has a score tracker, a keyboard music feature and a countdown timer. Kiki came up with the features and guided the process, while Boo helped turn the ideas into instructions for the AI tools. Kiki drew a mascot on paper and the AI beautified it; Kiki learned to ask for details like a rounder shape, softer colors and a friendly expression to get more consistent results.

Evidence: Article or interviewA newsletter, journalist or interview account of what happened.

Source

Posted
by Boo Kok Chuon, as told to Lee Chong Ming (Business Insider)
Last checked
Method:
How we verify

https://www.businessinsider.com/vibe-coding-8-year-old-daughter-ai-start-early-2026-4

Context: Mu Jong is a physical music-learning game, not a video game. The parent supervised and says human review is still needed.

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