Clarno

Clarno checks a startup idea by finding who has the problem, what they already pay to solve it and what would kill the idea, then suggests what to build first. It is meant for founders who want bad news before spending months on a product.

You hand it anything from a one-line idea to a deck or a live product. Clarno proposes a few angles on the market, ranks the groups who feel the problem most, estimates how many companies you could realistically reach, and lists real prices people pay today with dated sources.

Paid runs add a cohort of simulated buyers who argue with your offer, a pass, fail or pivot verdict, technical agents that attack the idea and draw an architecture, pricing and go-to-market suggestions, and prompts for building an MVP. Failed runs are refunded in credits.