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How-to guide

How to build an app with Corey: step by step

Updated 27 June 2026 · 6 steps

To build an app with Corey, describe what it should do and who it is for, then let Corey scope it, design the screens and a design system, and build it in your own repo with its engineering specialists. You review like a product manager and approve what ships; once it is live, Corey maintains it and builds the next features.

Wanting an app and getting one are usually separated by a developer you cannot find and a budget you would rather not spend. Corey shortens that distance: it scopes the app, designs it, and builds it in your own repo with its engineering specialists, while you steer like a product manager. Here is the order that works.

1. Describe the app

Start by telling Corey what the app should do, who it is for and the one thing a user must be able to accomplish. Corey asks the sharp questions - what happens on first open, what is the core action - and turns your answers into a clear scope. You sign it off before any building begins.

2. Scope the first version

The fastest way to never ship is to build everything. Corey trims the idea to a first version that is small enough to release and useful enough to matter: the core screens and the one flow that has to work. The rest goes on a later list, in plain sight.

3. Design the screens

Corey designs the key screens and a reusable design system, so the app feels consistent and considered from the first tap rather than assembled screen by screen. You pick the direction; it refines. Settling the look now avoids redrawing it later.

4. Build it

Corey’s engineering specialists build the app in your own repository, in reviewable pieces, with the checks running as they go. The code is yours from day one, and nothing reaches users until you have seen it and approved it.

5. Test on real cases

Corey runs the app through real scenarios, reproduces the issues it finds and prepares the fixes. You steer like a product manager - describe the bug or paste a screenshot - and it reships until the core flow is dependable, not just demoable.

6. Ship and maintain

Launch is the beginning of the work, not the end. Corey releases the app, then keeps it healthy - fixing issues, updating it and building the next features on a schedule. You keep the calls on what goes live and anything that touches users’ data or money.

That is how Corey changes building an app: it turns “I wish this existed” into something real and maintained - with you owning the code and the decisions.

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Questions, answered

Yes, and keep it working. Corey scopes the app, designs the screens and a design system, dispatches its engineering specialists to build it in your repo, and maintains it after launch. You direct the work and approve anything that ships to users.
Corey is strongest on web apps and the tools, dashboards and sites most businesses actually need. Tell it what you have in mind and it will be straight with you about the right approach and any limits before you commit time to it.
No. You describe the app and steer it like a product manager - reviewing screens, reporting bugs in plain words, approving releases. Corey's specialists handle the code and the checks. You own the repo and the decisions.
Yes. Corey works in your own repository, so everything it builds is yours to keep - no lock-in. If you bring on a developer later, they inherit a real codebase rather than a black box.
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 scoping, design, build and ongoing upkeep, rather than separate bills for each stage.

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.