codewithlaszlo
ENRO
web app development

Web App Development

Custom dashboards, internal tools, SPAs, and PWAs built around how your business actually works.

from €1,200

When a website isn't enough, I build the web app — a custom dashboard, internal tool, SPA, or installable PWA that fits the way your business actually runs. Built on a modern stack and wired into your real data and APIs.

The problem

Spreadsheets and disconnected SaaS tools only get you so far. Eventually you need a real interface over your data — but off-the-shelf products never quite fit, and enterprise builds are overkill for a small team.

What you get

  • A custom interface built around your actual workflow, not a generic template
  • Live dashboards and tools wired into your real data and APIs
  • An installable PWA option — works on desktop and mobile, even offline
  • A maintainable codebase you own, not a locked-in SaaS

Deliverables

  • A deployed web app (dashboard, internal tool, SPA, or PWA)
  • Integration with your data sources, APIs, or Microsoft 365
  • Authentication and role-based access where needed
  • Source code, documentation, and a handover walkthrough

How it works

  1. 1

    Scope

    We map the workflow, data, and screens the app needs.

  2. 2

    Build

    I build the app on a modern stack with clean, secure integrations.

  3. 3

    Integrate

    We connect it to your data and test against real use.

  4. 4

    Handover

    You get the deployed app, code, docs, and optional support.

FAQ

How is this different from Web Development?

Web Development covers marketing and presentation sites. Web App Development is for interactive apps — dashboards, internal tools, SPAs, and PWAs that work with your data.

What is a PWA?

A Progressive Web App is a website that installs like a native app — it works on desktop and mobile, can run offline, and updates instantly without an app store.

Can it connect to my existing systems?

Yes — that's the point. I integrate with your APIs, databases, and Microsoft 365 / Graph so the app works with your real data.

All services

Let's connect

Tell me what you're trying to automate or build. I usually reply within one business day.

Book a call