Custom software · no guesswork

See your product working before you pay for it.

Tell us your idea. Within days you get a clickable demo with your real data. If you like it, we build it. If not, you've lost nothing.

Demo in 7 days · Live in weeks, not months · The code is yours

Did you get a demo from us?

Every month we pick 3 companies with potential and, without being asked, build them a demo of how we see their business. If that's why you're here: it's not spam, it's yours, and it expires in 14 days.

Let's talk about your demo
The problem

Commissioning software feels far too much like buying blind.

You pay a quote based on a conversation, wait for months and, when you finally see it, it's no longer what you had in mind.

01

Quotes on paper

You decide based on a 20-page PDF nobody has been able to try.

02

Months before you see anything

The first real screen arrives when you've already paid half.

03

“That's not what I meant”

Changes come late, and every one of them costs time and money.

The process

Four steps. You pay once you've seen it.

We flip the usual order: first you see how it works, then you decide.

1
Day 0

Proposal

We go through what you already have: website, documents, how you work today. We send you a clear proposal of what's in and what's out.

  • Fixed scope
  • Fixed price
2
Day 1–2

Meeting

One hour to really understand the business: who uses it, what needs to happen and what keeps you up at night.

  • No tech jargon
  • Decisions made on the call
3
Within 7 days

Demo and review

We send you a link: your product, clickable, with your data. We review it together and adjust it until you say “that's it”.

  • You try it, you don't imagine it
  • You also see the technical side
4
Weeks

Build

We build it on top of the approved demo and launch it on your domain. The code lives in your repository.

  • Milestone payments
  • Optional maintenance
Already got the demo? You skip steps 1 and 2: we start straight at the review.
Why it works

More certainty and less waiting, with less work on your side.

What you get

↑ Your product up and running

A tool your customers use and that makes or saves you money, not a never-ending project.

Certainty

↑ You see it before you decide

The demo takes the gamble out: you decide on something real, not on a promise.

Time

↓ Days, not months

The first clickable version arrives before you've finished comparing quotes.

Your effort

↓ We set it up

You bring the business knowledge in one meeting. We do the rest.

What's included

Your business, built before the first invoice

Everything you need to go from idea to a live product, with no surprises.

Clickable demo with your data

Your product behind a private link, ready to show to partners or investors.

Included

Guided demo review

We go through every screen with you and adjust it the same week.

Included

“Look under the hood”

Every screen of the demo explains how it works inside, in plain language.

Included

Scope document ready to sign

What's in, what's out and when it's delivered. No small print.

Included

Build and launch

On your domain and your server, with the code in your GitHub.

Fixed price

Atelia training

We teach you to run your platform with AI, so you don't depend on anyone.

Included

Full handover

Code, server, documentation and access in your name. No lock-in.

Included
And then what?

On launch day, you decide. No lock-in.

We don't want you to depend on us. Part of the project is teaching you to run it yourself with the same tools we use.

Option A

We keep working together

Monthly maintenance: server, security, backups and small improvements. New features, each at a fixed price.

  • We warn you before something breaks
  • Cancel whenever you want
Option B

You keep it and run it yourself

We hand everything over and teach you how to run it. You carry on without us from day one.

  • Code in your GitHub and server in your name
  • Documentation and access, all handed over
  • Atelia training included
Made at Castillosa

Atelia

The tool we built to help companies day to day: several AI agents working at once on your projects, with the accounts you already use. Your platform stays connected to Atelia: ask it in plain language for content changes, reports or tasks, and it gets them done.

Discover Atelia →

Training is part of the project, not an extra. Sessions with your team until you use it without help.

Real case · in progress

A platform for doctors: from meeting to demo in under a week.

  1. ProposalFixed scope, fixed price and milestone payments.
  2. MeetingOne afternoon to define phase 1 with the founder.
  3. Clickable demoMini-site, doctor's back office, admin panel and AI integration.
  4. ReviewDemo review with the client.
  5. Build and launchOn the client's domain, with the code in their GitHub.
“From the first email to a clickable demo with a mini-site, back office, admin panel and AI integration, in under a week.”
Medical brand platform · phase 1
Who it's for

We don't work with everyone.

It's a fit if…

  • You run a business that already works and want to digitise or scale it.
  • You know what problem to solve, but not how to build it.
  • You'd rather decide by looking at something real.
  • You want the code to be yours.

It's not a fit if…

  • The lowest price matters above everything else (for tight budgets there's Brújula).
  • You need a 5-page brochure website.
  • Nobody is going to use the idea yet.
  • You want a 20-person team and weekly meetings.
If you're thinking this
“I don't have much money, but I want you to help me build something amazing.”

We hear it a lot. And many of the best ideas start exactly like that. That's what Brújula (Spanish for “compass”) is for.

Brújula

We set the course. You move at your own pace.
  1. Orientation sessionWe review your idea and find the smallest version that's already worth launching.
  2. Project mapWhat to build first, what to leave for later and what never to do. In writing.
  3. You build it with AteliaWe teach you to build and maintain your first version with AI, with our reviews along the way.
  4. When it grows, we level upIf the project starts bringing in money, we build it big together on top of what you already have.
One-off payment€399 + VAT
I want my Brújula →
FAQ

What everyone asks.

Is the demo really free?

Yes. It's our way of proving we understand your business. We only do a few a month, so we choose carefully.

What's the difference between the demo and the final product?

The demo runs on sample data and doesn't save anything. The final product has a database, users, payments and everything we've signed off in the scope.

Who owns the code?

You do. It lives in your GitHub from the final payment and you can deploy it wherever you like.

What if I don't want to keep working with you afterwards?

Perfect, it's designed for that. There's no lock-in: we hand over code, server and access, and train you in Atelia so you or your team can run it.

How much does it cost to build?

It depends on the scope, but it's always a fixed price you know before we start, paid in milestones: at kick-off, when you see the version on our server, and before launching on your domain.

I got a demo I didn't ask for. Why?

Because we saw potential in your business and would rather show it than tell it. If you're not interested, we won't write to you again.

Stop imagining your product. See it.

Leave us your phone number and we'll call you. In 7 days you'll have a clickable demo in your inbox.