About · method and standards
Start from a complaint someone already wrote down.
Free ideas and market data. Paid plans and growth playbooks. Every business idea has the public thread it came from, a Hotness score, and a market estimate, free to read with no account. Its business-plan prompt and growth playbook unlock together for one credit, from the same wallet as Real Startup Ideas.
Where the ideas come from
- We read high-engagement discussions in public communities, starting with Reddit.
- Report 01 kept threads above an engagement floor inside Sep 14 to Oct 14, 2026.
- We keep the recurring problem, not the loudest single comment.
- Editors rewrite it as a business someone could open: who pays, what they use today, and what a first offer looks like.
- The original thread stays linked. We show a short title excerpt. We do not republish the post.
How Hotness is calculated
Hotness runs from 1 to 5. Pain is 25%, willingness to pay 20%, demand 20%, the gap left by current options 15%, how operable the offer is 10%, and recency 10%. Cool is under 2.5. Scorching is 4.0 and above. Recency is recomputed whenever the catalog is rebuilt, so an idea cools unless newer evidence is added. Each idea page shows the six numbers. A source report’s own 1–10 figure stays in the data file and is not presented as ours.
How the shelves work
Niches, industries, markets, models, and topics. A niche page is indexed once it holds at least five ideas. A facet page needs five. A topic page needs three ideas and an introduction long enough to stand alone. Thinner pages remain reachable and are marked noindex. Free-form tags never get a URL.
What you can take
- The idea page, the evidence, the market estimate, and the questions are free.
- The business-plan prompt and the growth playbook unlock together for one credit ($9.99, or less in a pack). The first lines of each are on every page. See pricing.
- Credits and the $499 annual pass work on both businessideastobuild.com and realstartupideas.com.
- This site does not take a build deposit. Software PRDs and builds are on Real Startup Ideas.
Standards
No invented quotes. Demand claims link to a source. Last-verified dates are on the page. Corrections and removal requests go to sponsors@businessideastobuild.com. These are suggestions for a business, not medical, legal, or financial advice.
Sponsors
The catalog is funded by sponsorships and by the paid plan and growth prompts. Sponsors never appear inside a prompt. The same table is a CSV. The ten charts are on analytics. Methodology v1.0, October 2026.
Privacy and analytics
We use Google Analytics to measure visits: which pages are read, and the steps of a checkout. It sets Google Analytics cookies. We run no ads, ad signals are switched off, and we never sell your data. Reading needs no account. Signing in stores your email and a session cookie. Payments run on Stripe; we never see card numbers. Questions go to sponsors@businessideastobuild.com.
Questions
Are these businesses already taken?
No. They are free to start. Other people may start them too.
Do I need an account?
Not to read. To unlock a plan and growth playbook you sign in once with a Real Startup Ideas account; the same credits work on both sites.
How often does the list change?
When a new report is merged. Publishing is staggered so the evidence has one public home first.
Can I send a complaint I saw?
Email sponsors@businessideastobuild.com with the public link. We do not promise to add it.