How much does a custom web application cost?

The honest answer up front: most custom web applications we see on the Croatian market cost between 3,000 and 25,000 euros, and larger systems go beyond that. The range is wide, but the real reasons why are below - five minutes of reading and you will roughly know where your project sits.

For orientation:

• A smaller application solving one process (records, forms, data overview): roughly EUR 3,000 - 8,000
• A business application with user roles, integrations, and reporting: roughly EUR 8,000 - 25,000
• Larger systems with multiple modules and complex integrations: EUR 25,000 and up

The ranges reflect custom development on the Croatian market. Hourly rates run roughly 40 to 90 euros depending on who does the work - but an hourly rate alone tells you little. The total price is decided by something else: scope.

Not the technology. The scope.

In practice, the price of a web application is the number of things it has to do, multiplied by how reliable those things have to be. Concretely:

• How many processes it covers. An application running one process (say, supplier inquiries) costs far less than one running three (inquiries + invoicing + warehouse).
• Integrations. Every connection to an external system (ERP, bank, e-invoicing) is a project of its own. Two integrations can cost as much as half the application.
• Roles and permissions. "Everyone sees everything" is cheap. "Managers see their people, executives see everything, clients see only their own data" is serious work.
• The number of screens and states. Every screen has to be designed, built, and tested.
• Maintenance and upgrades. They are not included in the build price - and whoever tells you otherwise has hidden them somewhere.

That is why a serious vendor will not quote a price before hearing what the application needs to do. Any number given before that is marketing.

The biggest saving is not a cheaper vendor - it is a smaller first step.

You do not need everything at once. Start with the process that costs you the most - the one where your people lose hours every week. Once that module pays for itself, you build further. The application grows with the business, and you never pay for a big system where half the features sit unused.

And insist on a fixed price with a clear scope: exactly what you get, by when, and what happens if something does not work. Hourly billing with no defined scope is how a 10,000-euro project becomes a 30,000-euro project.

Instead of theory, here is what one custom application changed in practice.

A procurement team used to send every transport inquiry manually to twenty-odd addresses and track the replies across an inbox and spreadsheets. We built them an application where an inquiry is created and sent in under 2 minutes - to 30+ carriers at once. Every offer lands on one dashboard, and picking the winner is one click.

• ~90% less time spent on procurement administration
• 0 lost or overlooked offers
• A complete trail of every offer and every decision

When you weigh whether an application pays off, do not look only at the build price. Add up the hours your people burn every month on manual work the application would do itself, then multiply by a year. For most clients, that math settles the decision.

When you pay for a custom-built application, the code is yours. No per-user licences, no subscription price hike next year, no dependence on whether someone else's tool survives. You alone decide how and when it changes.

Compare that with off-the-shelf tools: a monthly subscription looks cheap until you multiply users by months. And until you realize you are paying for features nobody in the company uses, while the one you actually need does not exist.

If you have read this far, you probably have a concrete process in mind. The next step is to book a call: we walk through your process, what the application needs to do, and what your options are. Once we define the needs and the scope together, you get a fixed quote - then you decide for yourself whether the math works.