The Viability Sprint is a structured, AI-guided review that gives you a clear specification, realistic timeline, and indicative costs — in about two hours. Stop guessing. Start building with confidence.
Tooling and prototype spend — committed before anyone verified the product was commercially viable.
Scope ballooning mid-project — because the specification was never pinned down on paper.
Wrong-fit manufacturing route — chosen on gut feel, costing months and tens of thousands to unwind.
Investors walk away — because the numbers, timeline and risks can’t be articulated clearly.
We’ve seen founders pour savings into tooling for a product that should never have left stage one. We’ve watched good ideas die in a fog of unanswered questions — materials, cost targets, manufacturing routes, regulations.
Innovate Engineer exists because the first hundred hours of a product decide the next hundred thousand pounds. Get that wrong and nothing downstream can save it.
Answer structured questions in our Viability Sprint GPT. It walks you through five AI-assisted stages — Idea, Discover, Innovate, Evaluate, Define — and returns a complete Product Viability Brief.
Book a 30-minute video review with a senior engineer. We sharpen the numbers, flag risks AI may have missed, and recommend a manufacturing method — so you know what’s solid and where your thinking still needs work.
Upgrade to the Spec Package (£149) when you need a branded, investor- and manufacturer-ready document — or go straight to Cast Iron CAD for engineering delivery once you’re ready.
Two hours with the sprint saved us six months of arguing about the wrong problem. It told us exactly which bits of our own idea were weakest — before we’d spent anything serious.— Early-stage product founder · Consumer hardware
The Viability Sprint is free. If it exposes something worth pressure-testing, an Expert Review is £49. That’s the entire cost of making sure your next move is the right one — before you commit time, money, or tooling in the wrong direction.