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How much does an app cost for your business?

The question of how much an app costs is a bit like asking how much a business space costs. The answer might be a few thousand or several tens of thousands of euros, because the price doesn't depend on the name of the solution — it depends on what it actually needs to do for the business. An appointment booking app isn't the same as a system for ordering, inventory, billing, logistics, and customer communication.

That's why a good estimate isn't based on guesswork or a single number in a quote. It's based on a clear goal, a well-thought-out scope, and an understanding of which features actually save the business money, drive sales, or give it better control over its processes. If an app is designed properly, it isn't a cost incurred because of technology. It's a tool that removes manual work, errors, and unnecessary steps.

How Much Does an App Cost, Based on Scope?

For a simpler custom-built web app — for example, for submitting inquiries, managing content, bookings, or giving users access to basic data — a realistic starting range is often between €5,000 and €15,000. A project like this has a limited number of user roles, a clear flow, and few or no demanding connections to other systems.

A mid-sized business application typically falls between €15,000 and €50,000. In this range are solutions with user accounts, an admin panel, notifications, advanced forms, reports, payments, and connections to accounting, a CRM, or logistics. The price rises here because the system needs to reliably handle more scenarios, permissions, and data.

A more complex application, one that replaces part of a business's internal processes or serves a larger number of users, can start at €50,000 and go considerably higher. This includes larger B2B platforms, subscription systems, marketplaces, partner portals, field team management systems, and applications with custom integrations.

These ranges aren't a price list off a shelf. They're a point of orientation that helps distinguish serious custom development from promises of a "complete app" for a few hundred euros. A low starting price can be appropriate for a very limited prototype, but it often means a pre-built template, paid add-ons, limited integration options, and compromises down the line.

What Affects an App's Price the Most?

The biggest cost usually isn't the number of screens itself. Cost comes from the rules behind them. A "submit order" button looks simple visually, but behind the scenes it might require checking stock, custom pricing, taxes, payment, issuing a document, notifying the customer, and transferring data to an external system.

Features and Business Logic

Every feature needs planning, design, development, testing, and handling edge cases. For user login, you need to define the registration method, password reset, account protection, and user permissions. For bookings, you need opening hours, availability, cancellations, reminders, and any payments involved.

The key question isn't how many features you can add. The real question is which feature solves a concrete problem for a user or employee. A feature with no clear business benefit extends the timeline, raises the cost, and often ends up unused.

Design and User Experience

Quality design isn't decoration added after development wraps up. It determines whether a user understands the next step, whether they can quickly find a piece of information, and whether the system makes employees' work easier. For a custom-built app, this means designing the information structure, user flows, key screens, and responsiveness across devices.

A cheaper approach can use a generic interface. That sometimes makes sense for an internal tool with a very limited number of users. But when an app represents the business to customers, partners, or the sales team, a poor user experience quickly becomes a business problem.

Connections to Other Systems

Integrations are often the decisive factor. A connection to accounting software, an ERP, a warehouse, a delivery service, a payment gateway, or a CRM requires reconciling data, secure communication, and clearly defined rules for handling errors.

Even if an external system offers an API, the connection isn't automatic. You need to define which data gets transferred, when it gets transferred, what happens in case of a mismatch, and who sees which pieces of data. This is exactly where custom development shows its advantage over closed platforms, which only allow the connections they've predefined.

Mobile or Web Application

The word "app" can mean several things. A web app runs in a browser and is accessible on a computer, phone, and tablet. For many business processes, this is the most rational choice, since users don't need to install anything from an app store, and updates are rolled out in one place.

A native mobile app for iOS and Android makes sense when you need advanced phone features, such as offline functionality, heavy camera use, location, push notifications, or access to special hardware. Developing for two platforms can significantly increase the budget. Sometimes it's better to start with a responsive web app and then upgrade based on actual usage.

Security, Performance, and Maintenance

An app collects data, so protection needs to be a core part of the project. Secure login, access management, backups, updates, access monitoring, and personal data protection aren't add-ons it makes sense to push off until later.

Costs don't stop after launch. Hosting, performance monitoring, security updates, user support, and developing new features are all part of the lifecycle. It's worth budgeting a monthly or annual amount for maintenance right from the start. That way, the app stays secure, fast, and useful even as the business changes.

How to Set a Budget Without Guessing

The best starting point isn't a list of twenty features. Start with the process that takes up the most time today, causes the most errors, or limits growth. Describe who uses the system, what they need to accomplish in it, and what needs to happen after each step is completed.

It's useful to separate what's essential from what's merely desirable. The first version of an app needs to solve the core problem well enough for people to actually use it. Advanced reports, additional automations, multiple languages, or special modules can come in later phases, once you already know how users respond and what they actually need.

Before development starts, it's worth preparing a functional spec or holding a workshop to align on goals, user roles, key flows, integrations, and priorities. This isn't bureaucracy. It's a way of surfacing open questions before coding begins — questions that would otherwise cause delays and extra costs during development.

A good proposal, then, doesn't just include a final number. It clearly states what's included: analysis, UX and design, development, testing, data migration, launch, hosting, support, and maintenance. If something is excluded, that needs to be visible too. Transparency upfront is far cheaper than unpleasant surprises halfway through the project.

When Is Custom Development the Right Choice?

Custom development isn't necessarily the right decision for every idea. If you need a basic showcase site, a simple form, or a standard online store without special processes, a proven platform can be faster and more cost-effective.

Custom development pays off when a business is adapting itself to a tool instead of the tool adapting to the business. If a team is re-entering data between programs, working with confusing spreadsheets, can't connect key systems, or is losing orders because of manual processes, a generic solution often ends up costing more than it looked like it would at the start.

At Moxy Web, we treat development as a business decision, not a collection of technical features. That's why we first look at the process, the users, and the goal, and only then choose the technology and scope of the first phase. The result needs to be visually compelling, technically reliable, and flexible enough to grow alongside the business.

So the real question isn't just how much money the app will require upfront. Ask yourself how much slow processes, duplicated work, and missed opportunities are costing you every month because of the limitations of your existing tools. That's where the real value of a well-designed app begins.