Free tool
Pain Receipts
Type a niche and see the real customer pains our discovery sweeps have already sourced — each labelled with where it came from, and linked to the page whenever we captured one. Don't trust the score; click the source. The evidence your idea has to have.
How do you find real customer problems in a niche?
Type a niche and Pain Receipts shows the problems WhittleOS has recorded from public pages, each labelled with where it came from and linked to the page whenever a canonical link was captured. The rule it is built around: don't trust a score, click the source. It needs no signup, and when a niche is not recorded yet it says so or shows the closest match, marked as partial.
We search the problems the WhittleOS engine has already recorded from public pages. Type a niche, not your whole idea — and your text never goes in the URL.
How this works
Every problem here was recorded by WhittleOS from a public source, such as a product listing, a Reddit or Hacker News thread, or a vendor's own page. Each one is labelled "from a real page" when we opened the page ourselves, or "from search" when we saw only the search result, and links to its source ↗ whenever we captured one. We never invent a problem to fill a gap: if we have not recorded your niche yet, the search says so, or shows the closest rows it has and marks them as a partial match. And if the search cannot reach the library, it tells you that instead of showing an empty result.
“Seen in N sweeps” counts the times our runs recorded the same problem — it is not a vote count, and a row recorded once says “seen once”. The score beside it combines the severity we gave the problem with that count: not a headcount, and not a market size. The top severity is almost never given to a problem seen only in a search result, so the severity partly records how we saw the source, not only the problem. When we counted, on 2026-09-29, 1,822 of the 1,823 rows said “seen once”, so in practice the score is that severity alone.
This is the evidence layer, deliberately before the paywall. It is not a verdict on your idea — it shows you what we have recorded for a niche and where each problem came from. An empty result means we have not recorded that niche yet, or not in the words you typed — never that nobody has the problem. To turn what it shows into a decision, point the engine at your own situation:
From evidence to a decision
A founder read looks at your founder profile and tells you which directions fit before you build — 1 credit, covered by the 2 free credits every new account starts with. Already have an idea? Run a Single Idea Check for a blunt Build it / Test it first / Drop it.