Mobile App Cost: The Complete 2026 Guide

How much does a mobile app cost? It is the question I get asked most often, and the one that receives the vaguest answers. Between the agency quoting 120,000 euros and the offshore provider promising the same thing for 3,000, it is hard to know what to believe. I build apps for my clients, I see other people's quotes cross my desk, and in this guide I will give you the real numbers, with no sales talk.

Why such enormous gaps between the numbers floating around? Because a mobile app is not an off-the-shelf product. It is a custom project whose cost depends on dozens of parameters: the features, the technology, the level of finish, the seniority of the team, where the provider is based. Two quotes for the same project can honestly differ by a factor of three, depending on what each one includes or leaves out.

My goal with this guide is simple: give you the keys to read a quote, understand what actually costs money, spot the offers that are too good to be true, and scope your project so your budget goes where it matters. Everything that follows comes from real projects, not from a theoretical table copied from one website to the next.

Why an app costs more than a website

Many clients arrive with a budget calibrated on the price of a website, and the reality check is brutal. The reason is structural: a mobile app is a full piece of software, not a showcase. A website displays pages. An app manages user accounts, stores data, sometimes works offline, sends notifications, and talks to a server constantly.

Then there is the platform question. A website runs in every browser from a single codebase. An app has to run on both iOS and Android, two worlds with their own rules, tools and constraints. Even with the hybrid technologies I cover further down, you still have to test, adjust and publish on both ecosystems, which multiplies the work.

Add the server layer. Behind almost every serious app sits a backend: an infrastructure that handles accounts, saves data, keeps devices in sync and secures every exchange. This backend is a project within the project, often invisible to the client, and it frequently represents a third of the total budget.

Finally, the quality bar is higher. On mobile, a user who hits a crash or a slow screen uninstalls the app and leaves a public one-star review on the stores. The standard for polish, testing and performance is therefore much higher than for a classic website, and that standard is paid for in hours of work.

Price ranges by level of complexity

Now for the numbers. The ranges below reflect what I observe on the European market in 2026, for serious work delivered by competent professionals. I will say it again because it matters: these are orders of magnitude to help you position yourself, not guaranteed rates. Every project deserves its own estimate, based on a scope written down in black and white.

One more note on how these numbers are built. Most European providers price in day rates, typically between 350 and 700 euros per day depending on seniority and location. An app is then a matter of how many days of design, development and testing your scope requires. When a quote seems suspiciously low, divide it by a realistic day rate: you will quickly see whether the number of days it implies is even physically possible.

The simple MVP: expect between 5,000 and 15,000 euros

An MVP, for Minimum Viable Product, is the smallest version of your idea that already delivers value. Concretely: a handful of screens, a sign-up flow, one core feature executed well, a light backend. It is the ideal format to test a concept with real users without draining your cash reserves.

In this bracket, expect between 5,000 and 15,000 euros. The bottom of the range covers a very simple app built on existing building blocks. The top covers an MVP with custom design and a few connected features. Below 5,000 euros for a real app published on the stores, be careful: something was sacrificed, and you will find out what later, at the worst possible moment.

The business app: between 15,000 and 40,000 euros

A business app serves your teams or your professional clients: field service management, order tracking, an internal catalogue, a mobile tool for technicians. It requires differentiated user roles, reliable synchronization with your existing tools, often an offline mode, and business logic that can get complex behind an interface that must stay simple.

For this type of project, the realistic range runs from 15,000 to 40,000 euros. The main variable is integration: connecting the app to your ERP, your CRM or your existing databases takes time and demands rigor. Yet that is exactly where the return on investment lives, because a well-integrated business app saves an entire team hours every single week.

The polished consumer app: between 30,000 and 80,000 euros

Here we change leagues. A consumer app competes against standards set by the giants of the industry. Your users unconsciously compare your app to the ones they use every day, and they are merciless. The design has to be flawless, the animations fluid, the loading times invisible, the experience refined down to the smallest detail.

Expect between 30,000 and 80,000 euros for a product at this level. The budget spreads across genuine user research, custom design, careful development on both platforms, smart notifications, analytics to understand behavior, and a thorough testing phase. It is expensive, but it is the price of a product people actually keep on their phone.

The marketplace or fintech: 80,000 to 200,000 euros and beyond

The last category covers the heavy projects: a marketplace connecting sellers and buyers, a financial app that moves money, a platform with built-in payments and complex flows. The difficulty is not only technical. It is also regulatory: payment security, reinforced GDPR compliance, sometimes specific licenses for financial services.

For these projects, budgets start around 80,000 euros and easily pass 200,000. Every money flow has to be reliable down to the individual transaction, every potential security hole anticipated, every edge case handled. If a provider offers you a complete marketplace for 20,000 euros, they have not understood the project, or they plan to make it up on change orders.

Native or hybrid: how the technical choice affects the price

The choice of technology is one of the first decisions to make, and it lands directly on the invoice. Native development means building two separate apps: one in Swift for iOS, one in Kotlin for Android. It is the royal road for raw performance and immediate access to each platform's newest capabilities, but it doubles a large part of the work.

Hybrid development, with technologies like React Native or Flutter, lets you write a single codebase that runs on both platforms. The saving is real: on most projects, count on 30 to 40 percent less budget compared to double native, and above all a unified maintenance over time, since there is only one codebase to evolve.

My honest opinion: for the vast majority of projects I encounter, hybrid is the right choice in 2026. React Native powers apps used by millions of people, and so does Flutter. The performance difference with native is imperceptible for a classic app. I reserve native for the cases that genuinely require it: demanding games, intensive video processing, deep use of specific sensors.

Watch out for the opposite trap though: the no-code app factories that promise an app for a few hundred euros. These tools produce generic, slow apps that are hard to evolve and sometimes rejected by the stores. To validate an idea internally, fine. For a product that carries your brand, it is money down the drain.

The budget line items, one by one

A serious quote breaks down into identifiable line items. Here are the five main ones, with their usual weight in the total budget. If one of them is missing from the quote in front of you, ask the question: it is either hidden somewhere else, or simply absent, and its absence will cost you dearly later.

UX and UI design

Design generally represents 15 to 20 percent of the budget. The UX part defines the journeys: how the user signs up, navigates, completes the core action. The UI part dresses those journeys in a distinctive visual identity. Poor design is paid for twice: in development, because badly thought-out screens get rebuilt, and in users lost within the first few screens.

Development

This is the heaviest item, around 40 to 50 percent of the total. It covers writing the code of the app itself: the screens, the navigation, the logic, the animations, the error handling. The cost depends directly on the number of features and their complexity. Every additional screen, every special case, every option adds hours.

Backend and APIs

Count 20 to 30 percent for the server side: the database, the APIs that feed the app, authentication, security, initial hosting. It is the item clients underestimate most, because it is invisible. Yet without a solid backend, your app is an empty shell that will not survive its first hundred users.

Testing

Plan 10 to 15 percent for testing: checks across different devices, different iOS and Android versions, different screen sizes, network failure scenarios, load handling. A provider who does not bill for testing does not do it, and you will end up doing it yourself, in production, in front of your users.

Publishing on the App Store and Google Play

Then comes the release: preparing the store listings, screenshots, copy, compliance with store rules, and answering the remarks of Apple's and Google's review teams. Count a few days of work. Apple in particular regularly rejects apps over details, and each back and forth takes time that is better anticipated than discovered.

The recurring costs everyone forgets

Development is only the entry ticket. An app is a living product that generates costs every year, and I would rather announce them now than let you discover them on an invoice. The rule I give my clients: budget 15 to 20 percent of the initial development cost every single year.

The first item is corrective and evolutionary maintenance: fixing bugs discovered in real use, adjusting features, responding to user feedback. The second is imposed by Apple and Google: every year, iOS and Android ship a major version, and your app must be updated to stay compatible, or it will degrade and eventually be removed from the stores.

Then come the servers. Your backend runs on infrastructure billed monthly, from a few dozen euros for a small app to several hundred as the audience grows. Add the mandatory developer accounts: about 99 dollars per year with Apple, 25 dollars once with Google, plus any third-party services such as push notifications or transactional email.

A 30,000 euro app will therefore cost you roughly 4,500 to 6,000 euros per year to stay healthy, secure and compatible. This is not optional. An abandoned app decays fast: it crashes on new phones, accumulates security holes and eventually disappears from the stores. Build this amount into your financing plan from day one.

There is one piece of good news in all this: recurring costs are largely predictable. When I hand over an app, I give my clients a simple annual maintenance plan with a fixed envelope, so there are no surprises. Ask your provider for the same. A professional who refuses to talk about year two is telling you something about how they see the relationship.

The mistakes that blow up the budget

After years of projects, I keep seeing the same mistakes ruin budgets. The first, by a wide margin: wanting everything at once. The client arrives with a list of thirty features, all essential in their eyes. The result: a tripled quote, an endless development, and in the end a product whose users only ever touch three functions.

The second mistake is the vague brief. When the scope is not written down precisely, each side interprets it its own way. The provider prices optimistically to win the contract, then every clarification becomes a billed change order. I have seen projects double in price purely because of sloppy initial scoping. A proper scoping phase costs a few days and saves months.

The third mistake: changing your mind mid-build. Modifying a screen that is already developed does not cost the price of one screen, but the price of the screen, of its connections to the rest of the app, and of the tests to redo. A few rounds of that and the budget slips without anyone seeing it coming. Validate the mockups seriously before the first line of code.

The last classic mistake: choosing on price alone. The cheapest quote is rarely the cheapest outcome. A badly coded app will need to be taken over, sometimes fully rewritten, and you will pay twice. Between two quotes, compare the scope covered, the verifiable references and the quality of the dialogue, not just the number at the bottom of the page.

How to scope a smart MVP

The best way to control the price of an app is to scope a smart MVP. The method I apply fits in one question: what is the single action your users will open the app for? Everything that directly serves that action goes into version one. Everything else goes on a waiting list, and only leaves it if real usage justifies it.

This triage is painful but liberating. The rich profile, the dark mode, the referral program, the built-in chat: all of that can wait. A tight MVP ships in a few weeks, costs three times less, and above all teaches you true things. Feedback from fifty real users is worth more than six months of assumptions in a meeting room.

Ask yourself the medium question too. Some projects do not need an app at all: a well-built website, perfectly usable on mobile, is sometimes more than enough, for a far smaller budget. I broke down the numbers in my guide on the cost of a professional website: compare the two before deciding. An app earns its place when you need notifications, offline use, the phone's sensors or genuinely daily usage.

Finally, think beyond the app itself. If your project aims to streamline internal processes, the question is not only which screens to build, but what can be automated behind them. In my article on automating a business with AI, I explain how well-designed workflows sometimes replace expensive development. A light app plugged into solid automations often beats a heavy app standing alone.

Frequently asked questions about mobile app pricing

How much does a simple mobile app cost?

For a simple app, an MVP with a handful of screens, user accounts and one core feature executed well, expect between 5,000 and 15,000 euros on the European market in 2026. Below that range for an app genuinely published on the stores, something has almost always been sacrificed: the design, the testing, the security or the quality of the code.

Why do quotes vary so much from one provider to another?

Because providers are not pricing the same thing. Some include design, backend, testing and store publication, others only the code for the screens. Team seniority, location and the chosen technology also weigh heavily. Before comparing amounts, compare scopes: ask each provider for a written list of what their price covers and does not cover.

How much does annual app maintenance cost?

Budget 15 to 20 percent of the initial development cost every year. That amount covers bug fixes, the updates forced by new iOS and Android versions, the servers and the developer accounts. For a 30,000 euro app, that means roughly 4,500 to 6,000 euros per year. An unmaintained app decays and eventually gets removed from the stores.

Can you start small and grow the app later?

Yes, and it is the approach I recommend systematically. A well-scoped MVP validates real usage before you commit large budgets, and the following versions are financed with real usage data to back them. The only condition is clean foundations from day one: an architecture designed to evolve costs barely more at the start and spares you a complete rewrite later.

What to remember before asking for a quote

Let us sum up. A serious mobile app starts around 5,000 euros for a tight MVP and can exceed 200,000 euros for a complex platform. In between, the price is decided by the functional scope, the technology, the level of polish and the quality of the initial scoping. The ranges in this guide position you, but only an estimate based on a precise brief commits anyone.

My final advice: walk into the provider's office with a clear view of your app's core action, a realistic budget that includes maintenance, and the willingness to start small. You will save months of development and tens of thousands of euros, and you will give your product its best chance. The best apps I have delivered started from a modest scope and grew with their users.