Internal tool
on request
One core process in a tool of your own for your team.
- One process, a few screens
- Login for your team
- Code and data are yours
Dev & appsA custom web application that makes your process smarter.
From a smart internal tool to a customer portal, dashboard or SaaS. We build custom web applications around your process, starting with a sharp MVP, so you see value fast and build on what works.
Custom portals, dashboards and tools. Meet on site in our region or by video.
Price on request · fixed price up front · code and Git repo are yours
- Based in Julianadorp, NL · Chamber of Commerce 54099897 · you talk to the people who build it
Having a web application built starts with an MVP: the smallest working version that carries your core process. The price is on request: after a call you get a fixed price up front. We build from Julianadorp in Next.js with Firebase, Azure or a custom backend, and you own the code. You get a fixed estimate of scope, timeline and cost up front.
What we do
From idea to working platform, in short rounds.
The most expensive way to build software is to plan everything up front. We start with an MVP: the smallest working version that delivers your core value. You test it with real users, then invest deliberately in what demonstrably works. We build on a modern, scalable stack (Next.js with Firebase, Azure or a custom backend) — and you own the code.
SHARP · WORKWhat you get
Concrete, not vague.
01
MVP-first
A working core fast, validated with real users.
02
Around your process
Built around how you work, not the other way round.
03
Scalable & secure
Hosting in the EU, roles and permissions, data processing agreement on request.
04
Your property
Once paid, the code, data and Git repository are yours.
Honest proof
What we’ve built.
Custom work that is live and that you can look at. We don’t have a public web-app case (yet); this is the custom work we do have.
CUSTOM SOFTWARE · TEXEL
Hondenvoeding Texel
Bespoke webshop software without licence fees: product filters, live stock in the cart and local delivery on Texel.
CUSTOM · WORDPRESS
Amarque
A custom WordPress theme with project pages and a route to the quote request, managed by the team itself.
WEB APP · TRY IT YOURSELF
Try it yourself: the advisor tool
A web app we built ourselves: a few questions, calculation logic and advice with a price, connected to our own CMS. Give it a go.
This website is custom work too: Next.js with its own CMS on Firebase and an admin environment. Much of our earlier work was white-label for agencies; that isn’t under our name.
How we work
From idea to working app, in four steps.
- 01
Discovery
What must version 1 do, and what not? We map your process, your users and your systems.
- 02
Proposal with a fixed price
Scope, planning and a fixed price per phase. Extra work only after your approval.
- 03
Building in short rounds
We build the first version in short rounds, with demos in between, so you can steer in time.
- 04
Testing and building on
Testing with real users and building on what works. Once paid, the code and the Git repo are yours. We usually start within 1–2 weeks of your go-ahead.
Working together
Three ways to start with us.
MVP
on request
Working first version with your core feature; the planning is in the proposal.
- Core process working
- Test with real users
- Ready to build on
Larger platform
on request
Multiple roles, payments, dashboards or AI. You get a price after a conversation.
- Multiple user roles
- Payments and integrations
- Data or AI
Who you'll talk to
You talk to the developers.
Reney and Jathursan build your app themselves. We’re based in Julianadorp (North Holland, NL); we meet on site in our region or by video.
One number for the four of us. We reply within one business day. Based in Julianadorp; online, or we come to you.
Free sparring session
Got an idea for an app or tool?
Leave your details and we'll think along about your idea, no obligation: what's the smartest MVP, and what would it roughly cost? You'll get a personal reply — no sales pitch.
Frequently asked questions
Good to know.
Question not listed? Just ask, one of the four of us will answer.
Ask your questionWhat exactly is an MVP?
A Minimum Viable Product: the smallest working version of your app that delivers the core value, so you test it with real users before spending heavily on extra features.
What does it cost to have a web app built?
That is on request. An internal tool, an MVP or a larger platform with multiple roles, payments or AI differ greatly in scope. After a call you get a fixed price per phase up front, excl. VAT. What the market charges, you can read in what a web app costs in 2026.
How long does development take?
That depends on the scope and how quickly decisions are made; the planning is in the proposal. We build in short rounds, so you soon see something working.
Do I own the code?
Yes, once paid: the code, data and Git repository. We deliver with documentation, so another developer can carry on too.
Can I scale later?
Yes, provided it’s built for from the start. We pick a stack and architecture that grows with you, so scaling doesn’t mean a rebuild.
Which web apps have you built?
We don’t have a public client web-app case yet. What you can look at: the bespoke webshop software of Hondenvoeding Texel, the custom site of Amarque and this website, with its own CMS and the advisor tool you can try yourself. Much of our earlier work was white-label for agencies; that isn’t under our name.
How quickly can you start?
Usually within 1–2 weeks of your go-ahead. We work in short rounds, so you’ll see something concrete within a couple of weeks.
Where are you based?
In Julianadorp, in the north of North Holland (the Netherlands), and partly in Sweden. You can visit us or we come to you in our region. With clients elsewhere in the Netherlands, the Benelux and Scandinavia we work by video call.
Rather talk directly? Just call, message or email us.