How much does a custom web application cost?

One screen can show a simple list — or it can drive decisions about pricing, availability and permissions. That's why 'how many pages does the app have' doesn't reliably describe the work. What tells you far more is a concrete example of what a user is trying to finish, what data goes in, and what must still hold true after their action.

I start an estimate by describing one complete process end to end. For a quote, that's entering line items, calculating totals and generating a document; for a booking, it's picking a slot, confirming it and holding capacity. Then we check the exceptions: a change, a cancellation, a duplicate request or a mistaken entry. Once those steps are clear, we can estimate development and testing without guessing from a handful of sketched screens. Visual design still matters, but business rules drive most of the complexity.

The starting custom web application package covers the agreed business workflow and the features stated in the quote. The price list lists a Laravel and MySQL backend, a React frontend, role-based administration, integration capability and reporting. The exact combination and scope still need to be defined for your project — the list of what the package can include isn't a promise of unlimited development across every integration at once.

A good first version solves one important problem, start to finish. It might replace repeated copying from spreadsheets, unify a scattered record, or enable a new sales capability. We separate what a user can't complete their task without from conveniences that can wait. That gives you a useful, checkable result — instead of many half-finished modules that still don't support real work.

Different staff permissions need clear rules: who sees data, who changes it, and who confirms the final step. Once several teams or locations are involved, access boundaries and shared records need checking. Reports need a precise meaning too — two people shouldn't expect different totals or statuses under the same label.

Integration depends on what the other system can actually do, and migration depends on its real data structure and quality. So I ask for interface documentation and an anonymised sample before promising a timeline. Payments, fiscal receipts, email and SMS bring their own external terms and costs. In the fixed quote, we separate development, assumptions and responsibilities. If access to a partner's system isn't available yet, that has to be visible in the delivery plan — not hidden until the final phase.

The price list gives a 4–10 weeks window, but the actual schedule depends on the features agreed and how quickly you give feedback. Working together starts with a free short call and a fixed quote within 48h. The quote lays out scope and phases, and you review progress regularly during development. Your decisions on rules and content are part of that schedule.

Changing your mind is fine, but a new feature isn't automatically included in the existing price. We first describe its impact, then you decide whether it goes in now or later. For every important feature we agree an example of an accepted deliverable, so both sides know when a task is actually done. At the end comes server setup, training and 30 days of free fixes — rather than an unclear finish where the app just changes status on a task list.

An application needs proper hosting, backups, updates and monitoring. My maintenance package starts at €50/month, while third-party services and larger new development are agreed separately. The quote clarifies who has access, where the code is stored, and how the application could be handed to another qualified developer.

The DriveSoft operations back-office shows my experience with passengers, routes, departures and reporting. The wider Srbija Tours / DriveSoft platform has processed 150,000+ tickets and reservations. Leto Halkidiki is an example of a portal with structured listings and administration. These are references for how I work, not an estimate that your CRM or admin panel needs the same budget. Your own process and the scope of your first version are what decide the actual quote.