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Software & Web / Web apps and PWAs

Web apps and PWAs

Applications in the browser and on the phone: bookings, client portals, PWAs.

Price
from €5,000
Typical duration
6 to 12 weeks

01 / Who it is for

Companies running operations through spreadsheets, chats and paper, and teams with an idea for their own digital product.

The problem it solves

Data lives in five places, the same thing is typed more than once, and nobody sees the whole picture. Packaged tools ask you to bend your process to them.

What you get

  • 01A written specification and clickable prototype before the first line of code
  • 02A Next.js application on PostgreSQL (Supabase)
  • 03PWA: installable on a phone, usable on a weak connection
  • 04Authentication, roles and data backups
  • 05A staging environment, documentation and the source code

Process

  1. 1Process mapping and specification
  2. 2Prototype and scope sign-off
  3. 3Phased build with a weekly review
  4. 4Testing with your users
  5. 5Production, training and support

Related work

Digital Tours

02 / Questions

Questions

How much does a project cost?

It depends on scope, so we do not guess. After the first conversation you receive a written quote with a fixed price per phase. Infrastructure work is priced from an estimate after an on-site assessment.

How long does it take?

A website is usually measured in weeks, an application in months. The deadline depends mostly on how fast content and decisions arrive. An exact phase plan is part of the quote.

Who owns the code afterwards?

You do. Once paid, you receive the source code, repository access and every account in your name. We keep nothing that would tie you to us.

Where is the site or app hosted?

Web projects usually go on Vercel, with databases on Supabase in an EU region. The account is opened in your name and you pay the provider directly, with no markup from us.

What about maintenance after launch?

You can arrange it monthly or call when needed. Maintenance covers updates, security patches, monitoring and small changes. It is not a condition of working together.

Have a project? Get in touch.

Describe what you need in a few sentences. We reply directly, no automated messages.

or write to

info@quantumcode.hr