Build
Product development, start to finish
What you get when you hire us to build
Crescentic is a product development company that builds web, mobile and AI-native products from idea to launch — and then keeps the same engineers on them for years. You get a team that shapes the product with you, owns the infrastructure it runs on, and is still there when version three ships. This page is for founders and product owners who need a team to build the thing, not a body shop to implement a spec.
A team that treats your product as a product, not a ticket queue. We ask what the thing is for before we ask what it should be built in, and we will push back on a feature that is going to cost more than it returns. That conversation is the job. The code is what happens after it.
In practice that means the whole stack of decisions: the domain model, the architecture, the infrastructure, the release process, the analytics that tell you whether any of it worked. We build web applications, iOS and Android apps, and AI-native products where the model is part of the product rather than a feature bolted to the side.
- Web applications — the product, the admin, and the pipelines that ship them.
- iOS and Android, native or cross-platform, including store release management.
- AI-native products, where the interesting problem is what happens when the model is wrong.
- The infrastructure underneath, defined in code and owned by you.
The same engineers, for years. Not the team that pitched, then a handover.
Most agencies staff a project, ship it, and move those people to the next account. Continuity is the thing our clients actually praise, and it is the reason the second year of a product costs less than the first rather than more.
What does building 'idea to launch' really involve?
Launch is the middle of the project, not the end of it. The work that decides whether a product survives is mostly the work that happens when the first assumption turns out to be wrong — and it always does. So we build for the version of the system that has to change, not the one on the slide.
- 01
Scope the thing honestly
What has to be true on day one, what can wait, and what would be expensive to get wrong. This is where we tell you if we think a piece of it is a bad idea.
- 02
Build the spine first
The domain model and the parts that are costly to change later. Getting the nouns right early is what makes month six cheap instead of a rewrite.
- 03
Ship to real users
Into production, on infrastructure you own, with the release pipeline in place from the start rather than improvised at the end.
- 04
Then keep going
Same engineers, iterating on what users actually did. This is the part most engagements skip and the part that decides whether the product works.
What does the work look like in practice?
One example, because a claim without one is just a claim. We built an eSIM commerce platform on Medusa — a commerce engine designed around physical stock, for a product that has none. An eSIM does not exist until someone pays for it, and at that moment it has to be bought from a supplier and provisioned before the customer can use it. No warehouse, no shipment, and no second chance if the payment later fails.
That migration is the kind of work you only get from a team that is still there two years in. An engagement that ended at launch would have left the original schema in place and the business stuck with one supplier.
How is this different from hiring an agency or contractors?
The honest answer is that the difference is not in the first month. It shows up in the second year, when you find out whether the people who know your system are still working on it.
| Typical agency | Hiring in-house | Crescentic | |
|---|---|---|---|
| Who builds it | A staffed team, reassigned after launch | People you recruit and manage | The same engineers, across years |
| Time to start | Weeks | Months of hiring | Weeks |
| After launch | A support contract, often a new team | Your team, your overhead | The same team, continuing |
| Product decisions | You bring the spec | Yours to make | Argued out with you |
| Commercial model | Time and materials | Salaries and equity | Fixed bid, T&M, retainer, revenue share or equity |
None of these is wrong. If you have a fixed, well-understood scope and a strong internal technical lead, an agency on time and materials is a perfectly good answer. We are the better answer when the product is still being figured out and you need the people doing that thinking to stay.
How we charge
Fixed bid when the scope is genuinely fixed. Time and materials when it is not and we would both be guessing. A retainer once the product is live and the work is continuous. Revenue share or equity when we believe in the product enough to take part of the risk with you — that last one is not on offer for every engagement, and we will tell you straight if we do not think it fits.
We take a small number of clients at a time. That is the constraint that makes the continuity above possible, and it is why we sometimes say no.
01.What does a product development company actually do?
It takes a product from an idea to something real people use, and then keeps it running. That means the product decisions as well as the code: what to build first, what to cut, how it should behave, what the architecture has to survive. We build web applications, mobile apps and AI-native products, own the infrastructure they run on, and stay on them after launch. If you only need hands to implement a finished specification, you want a contractor, not us.
02.How long does it take to build an MVP?
It depends entirely on what has to be true on day one, which is why we scope before quoting rather than after. The more useful question is what happens in month six. A three-month MVP that nobody can extend is slower than a four-month one that becomes the product, and we have inherited enough of the first kind to build the second.
03.Do you work with non-technical founders?
Often. It works when you own the problem and the customer, and let us own the engineering. What we need from you is decisions and access to users, not a technical specification. We will translate in both directions and tell you plainly when something you have asked for is going to cost more than it returns.
04.Who owns the code you write?
You do, throughout. Repositories, infrastructure accounts, and deployment pipelines are yours from the first commit rather than transferred at the end, so there is never a moment where leaving us is a project. That is deliberate: we would rather you stay because the work is good than because exit is expensive.
05.Will the same engineers stay on our product?
Yes, and it is the main reason to hire us. The engineers who build your product are the ones who keep building it — one of our commerce clients is on the third major version of their mobile apps with the same team that shipped the first, and one of our platform clients has had continuous engineering from us for years. No rotating bench, no handover to a cheaper team once the contract is signed.
06.Can you take equity or revenue share instead of fees?
Sometimes, when the fit is right. We run fixed-bid, time-and-materials, retainer, revenue-share and equity engagements, and we will say honestly which one suits the work. Shared upside is not a discount mechanism — it is for cases where we believe in the product enough to carry some of the risk with you.
The rest of what we do
Transform
Re-engineering systems that already run your business, without the rewrite that never lands.
Read more →Lead
Fractional CTO leadership, technical strategy, and due diligence when you need a senior technical voice.
Read more →For agencies
Delivery capacity and specialist engineers for agencies and enterprise teams that need a partner.
Read more →