BriefScore validates product ideas with real market data. Submit a brief and get a structured report in ~10 minutes for £19.99. Our AI pipeline researches 30 real products in your category (15 successes, 15 failures), derives 8 predictive rules for what separates winners from losers, validates them on held-out data, and scores your idea. You get a verdict, scorecard, rule compliance table, market landscape, and action plan — every claim backed by a named real company. No generic advice. No hallucinations.