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Andy Lee
Andy Lee

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Validate your startup idea in 10 seconds (side project)

Hey devs 👋

I'm building Gonogo, a side project that helps you quickly evaluate your startup ideas.

It scores your idea across 5 dimensions:

  • Market Attractiveness
  • Problem Severity
  • Differentiation
  • Execution Feasibility
  • Monetization Clarity

It gives you a simple GO / NO-GO verdict — like a mini investor in your pocket.

Try it on the App Store

Why I'm building it:

  • I wanted to get sharper at judging what’s worth building
  • I'm experimenting with monetization (AdMob) and fast iteration
  • It's also helping me get better at launching — not just coding

Tech stack:

  • SwiftUI (iOS)
  • AdMob (banner ads)
  • Cloudflare Worker calling OpenAI’s API

No backend DB — your idea isn’t stored anywhere.

OpenAI sees your idea text once (like using ChatGPT), then it’s gone.

🗑 Delete the app, and your history’s wiped.


Would you find this useful for refining ideas over time?

Drop thoughts or feedback — especially if you’ve built something similar!

Download Gonogo here

Happy to jam with other side project builders.

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