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How-to guide

How to build a product with Corey: step by step

Updated 27 June 2026 · 6 steps

To build a product with Corey, start by validating the problem with real research, then turn it into a tight spec and a small first version. Corey dispatches its engineering and design specialists to build it, you steer like a product manager, and once it ships Corey keeps it improving from real usage. You approve anything public or irreversible.

Most products die in the gap between the idea and the first real version. The research feels like a chore, the spec balloons, and the build needs people you do not have yet. Corey closes that gap: it does the research, the design and the build, dispatching specialists where it needs them, while you make the calls a founder should. Here is the order that works.

1. Validate the problem

Before you build, find out whether the problem is real and worth solving. Corey researches who has it, how they cope today and what a better answer is worth to them, then hands you a plain summary. You decide whether to build - on evidence, not optimism.

2. Shape the spec

A good first version is small and sharp. Corey turns the idea into a tight spec: the one job it must do well, the features that matter, and the ones to cut for later. It helps you resist the urge to build everything at once, which is what sinks most first releases.

3. Design it

Corey produces the core flows and a design system - how the product looks and how it moves - so it is consistent from the first screen. You react like a client and pick the direction; Corey refines it. Settling the look early saves rework later.

4. Build the first version

Now Corey builds. Its engineering specialists work in your own repo, breaking the work into reviewable pieces so you can see it take shape. The code is yours, and nothing ships to users until you have approved it.

5. Test and refine

Corey runs the checks, reproduces issues and tees up fixes. You steer like a product manager - say what is wrong, paste a screenshot, point at the rough edge - and it reships until the first version is genuinely solid rather than just done.

6. Launch and keep improving

Shipping is the start, not the finish. Corey launches the product, then watches how it is actually used, flags what to fix or build next, and ships the changes you approve. The product keeps getting better on a schedule, instead of only when you find a free week.

That is how Corey changes building a product: it turns an idea into a real, improving thing - with you deciding the direction and keeping the final say.

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Questions, answered

Yes, with you steering. Corey validates the problem, shapes the spec, designs the flows, dispatches its engineering specialists to build a first version, and keeps improving it from real usage. The bets - what to build, what to cut, what to charge - stay your calls.
Not to get started. Corey runs the build and the housekeeping a small engineering team would, in your own repo, and hands you the decisions. Many founders use it to get a real first version live before they take on headcount.
As involved as a product manager. You set the direction, review what Corey builds, and approve anything that ships. Corey does the hands-on research, design and build, so your time goes to the calls only you can make.
Yes. Corey's engineering specialists work in your own repo, open changes in reviewable pieces and run the checks. Nothing merges or ships to users without a human approving it, so you keep control of what goes live.
Corey is £49 a month or £490 a year, with a 28-day probation at no cost and no card to start. One subscription covers the research, design, build and ongoing improvement, instead of separate bills for each.

Let Corey do this for you

The first 28 days are on us. Corey does the work in these steps and hands you the calls that matter.