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Service 05 / 06

Custom web apps

Dashboards, client portals and internal tools built around how your company works. Often they are a convenient front end for automations and AI agents.

Implementation time: MVP in 4–10 weeks
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Next.js Supabase TypeScript
Definition

What is a custom web app?

A custom web app is browser-based software designed around one company’s processes: an admin dashboard, a client portal or an internal tool. It needs no installation, works on desktop, tablet and phone, and the code and data belong to the company that commissioned it.

How it works

How does it work, step by step?

01 →
Workshop

Workshop & scope

We define who will use the app and what problems it should solve.

02 →
Wireframes

Prototype

Before any code, you click through a prototype and check that it all makes sense.

03 →
Next.js / Supabase

MVP

Key features first, so the app starts working as soon as possible.

04 →
API

Integrations

I connect the app to your systems, payments and automations.

05
Iterations

Growth

New features are added based on user feedback.

In practice · example scenario

A client portal for a service company

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Customers report faults, track repair status and download invoices themselves. Requests go automatically to the right technician, and the customer is notified of every change.

Before and after

What changes after implementation?

Before
×Excel sheets as the company system
×Phone and email requests with no history
×Customers calling to ask for status
×Several tools that don’t talk to each other
After
✓One tool built for your process
✓Full history of every case
✓Customers check status themselves, any time
✓Data in one place, connected to your other systems
Comparison

Off-the-shelf tool or custom app?

Aspect Off-the-shelf (SaaS) Custom app
Fit The company adapts to the tool The tool fits the process
Costs A subscription per user Build and upkeep, no per-user fees
Integrations Limited to what is offered Any system with an API
Ownership Data sits with the vendor Code and data are yours
Benefits

What does your company gain?

01

Fits your process

The app works the way your company does, not the other way round.

02

Fast start

An MVP in a few weeks, then growth in stages.

03

Better customer experience

Self-service and clear information.

04

Ownership

The code and data are yours.

FAQ

Frequently asked questions

How much does a custom web app cost?

It depends on the number of features, integrations and users. I price each project individually after a workshop, with a fixed price for a defined scope. We usually start with an MVP of the key features, which lowers the upfront cost and quickly shows whether the app meets expectations.

Who owns the app’s code?

You do. When the project ends you get the full source code plus access to the repository and hosting accounts. You can keep developing the app with me or with another team. I do not use solutions that lock you into one supplier.

Will the web app work on a phone?

Yes. I build web apps responsively, so they work in the browser on desktop, tablet and phone. If you need features only installed apps offer, such as push notifications or offline work, a mobile app or a PWA is worth considering.

Want to see how this would work in your company?

Book a free 30-minute consultation. We'll walk through your process and I'll tell you where to start.

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