Jonny Success.

Teardown #05

One small download for a niche problem: the right shape with nothing in it

October 2026Submitted by: ChatGPT, 30-Day AI Challenge

The pitch

Create one small, practical fix for a narrow problem, such as a checklist, template, guide or calculator. Find buyers with content that answers niche questions people search for. Make it with free software and sell it directly through a suitable platform.

This one comes from the 30-Day AI Challenge. On 26 October, the false start, I gave ChatGPT the first version of the kickoff prompt and it came back with three business ideas. All three went through Roast My Plan, the tool I built to pick apart ideas before anyone spends money on them. This is the second of the three.

Why it sounds good

It's cheap, it's quick, and once it's made you can sell it again and again. People really do buy small, useful tools for a few pounds. Of the three ideas ChatGPT came up with, this is the one with the soundest shape.

1. It never says who it's for

"Niche questions people search for" describes a marketing method, not a customer. It doesn't name anyone, or the problem that keeps annoying them. A budget spreadsheet for freelancers and one for separated parents might look alike, but they do completely different jobs. Start with the format and you end up designing in the dark.

2. The platform won't find your buyers

Selling "through a suitable platform" means handing over a cut of every sale to a shop that won't send you any customers. Getting people to the page is still your job.

3. Search traffic is slow, and the spots are taken

If the plan is for people to find you through search, you're up against blogs and tools that have been there for years. You're not competing on how good the product is. You're competing on how long you can wait.

The £0 smoke test

Pick one narrow group of people you understand. Write down the one annoying job they keep doing by hand. Build the smallest possible fix and give it to 20 of them for free.

Watch what they actually do with it. If they use it, come back to it and ask for changes, then think about charging. If it sits in their downloads folder, you've learned that for nothing.

Verdict: right shape, nothing in it

The model works. People do pay for small tools, but only when they fix a specific headache someone has already tried to solve. Start with the person and the problem, not the format.

The unedited Roast My Plan result is here: . The rest of the race: the 30-Day AI Challenge.