How Much Does It Cost To Build An App in 2026?

The short answer: in the UK, a simple app or MVP costs £15,000 to £40,000, a medium-complexity app £40,000 to £80,000, and a complex or enterprise app £80,000 or more. Those are the bands we quote in 2026, for one app that runs on both iPhone and Android. Separate native apps for each platform cost more. After launch, our App Care plans keep it working from £675 a month. If you'd rather have one fixed number than a range, that's what our four-week App Gameplan is for.

Updated 6 October 2026. I've added answers to the questions people ask Google most about app costs: what it costs to hire a developer, why native apps cost more, and what maintenance costs month to month. I've also re-checked every statistic against its original source, corrected two that had been misquoted, and replaced two maintenance rules of thumb I couldn't trace to any source with what our App Care plans cost.

I'm Gareth, CTO at Foresight Mobile. I've been quoting app builds at Foresight Mobile since we started it in 2017, and the "how much does an app cost" conversation in 2026 sounds different to the one I was having even two years ago. Below is what you'll actually pay, where the money goes, and how to avoid spending six figures on something you weren't sure about.

How much does it cost to develop an app in the UK?

A UK app costs between £15,000 and £80,000 for most businesses, and £80,000 or more for complex or enterprise builds. Here's how that breaks down by complexity, based on what we quote this year:

• Simple app or MVP: £15,000 to £40,000. A handful of screens, standard UI, one clear job. Think a digital brochure, a booking form, or a basic loyalty app. Around 3 to 6 weeks of development.
• Medium-complexity app: £40,000 to £80,000. User accounts, payments, third-party integrations, a proper backend, a design that looks like you meant it. Most projects sit here. Around 6 to 12 weeks of development.
• Complex or enterprise app: £80,000 or more. Real-time sync, custom animation, heavy backend logic, strict security or compliance. Around 12 to 20 weeks of development.

Those development times come after the four-week App Gameplan, which costs £3,500. All three bands assume one cross-platform codebase that ships to both the App Store and Google Play. If you need separate native apps for iOS and Android, expect to pay more, because you're paying for two codebases (more on why below).

The 2023 version of this article quoted a range of £1,000 to £100,000. I'm calling that out because the bottom of that range no longer means what it used to. In 2026, anything under about £15,000 from a development team is almost always no-code or an AI-generated prototype, and that comes with caveats I'll get to. The "£1,000 app" a business would trust in front of customers doesn't really exist anymore.

How much does it cost to hire a mobile app developer?

In the UK, a contract mobile developer typically advertises at £375 to £515 a day, a permanent one costs around £60,000 to £90,000 a year in salary, and an agency like us prices the whole project, from £15,000 for a simple app. Those are three different things to buy, and the cheapest day rate isn't usually the cheapest app.

• A freelance or contract developer. Median advertised UK day rates over the six months to October 2026 sat at about £375 for "mobile developer" roles, £401 for iOS, £450 for Android and £513 where Flutter was the skill asked for (IT Jobs Watch). Outside London the medians drop to roughly £325 to £400. You get one person's hours. Design, testing, backend, App Store submission and project management are yours to find or do.
• An in-house hire. Advertised permanent salaries for mobile developers sat around £60,000 to £90,000 over the same period, with London at the top of that range. Add employer's National Insurance, pension, equipment and recruitment, and remember one developer usually covers one platform well.
• An agency. You buy an outcome: designers, developers for both platforms, testing, release management and someone accountable for the date. That's how our bands above are priced.

From what we've seen, a single freelancer is the right call for a small, well-specified job where you already know exactly what you want. Where it goes wrong is a medium-complexity app handed to one person who's strong on the front end and learning the backend as they go. We've picked up several of those through our App Rescue work, and putting it right often costs more than building it properly would have done.

Why do native apps cost more than cross-platform apps?

Native apps cost more because you're building the same app twice: once in Swift for iPhone and once in Kotlin for Android. That means two codebases, two sets of specialist developers, two rounds of testing and, after launch, two apps to keep current every time Apple or Google change something. A cross-platform toolkit like Flutter gives you one codebase that runs on both, so you only pay for the most expensive phase once.

That's why we use Flutter for most of our app builds. Native still earns its place in some projects: apps that lean hard on one platform's newest features, Apple Watch or visionOS work, or heavy background processing where every bit of performance matters. When that's you, we build native iOS and native Android apps too, and the Gameplan is where we'd tell you honestly whether the extra cost buys you anything.

What drives the cost of an app?

Cost follows the time and people a project needs, and five things set that: how many features the app has, which platforms it runs on, how much backend it needs, how polished the design has to be, and any security or compliance requirements. Payments, live chat, third-party integrations and real-time data each add weeks. A clear, validated scope is the best way to keep the number predictable.

Here's roughly where the money goes in a typical build. App pricing confuses people because the code itself is rarely the only big line:

• Discovery and design. Working out what to build and how it should feel before anyone writes production code. Skimp here and you pay for it three times over in rebuilds. This is exactly why we built our App Gameplan discovery service: a fixed-price, four-week process that gives you a board-ready answer on what to build and what it'll realistically cost, before you commit to the full spend.
• Development. The build itself, front end and backend. This is where complexity multiplies your bill, and where building for iOS and Android separately (native) roughly doubles the effort compared with one shared codebase.
• Testing and QA. The unglamorous part that decides whether your launch is a release or an incident.
• Backend and infrastructure. Servers, databases, sign-in. We tend to start projects on managed services like Firebase, so hosting stays near zero while your user numbers are low and grows with you, instead of a fixed monthly bill from day one.
• Store fees and launch. Small but real (more on those below).

Is an app still worth the money in 2026?

Yes, but the reason has shifted. The app economy isn't growing on the back of new downloads anymore. It's growing on spend per user.

In 2025, global consumer spending on apps reached $155.8 billion, up 21.6% year on year, while total downloads fell 2.7% to 106.9 billion. That's the fifth year running that downloads have dropped while spending has climbed. Non-game apps alone took $82.6 billion, up 33.9%. (Those figures are Appfigures' annual numbers, published in January 2026.)

What that means for your budget: people aren't downloading more apps, they're spending more inside the few they keep. So the money you put into quality, retention and a reason to come back matters more than ever. A cheap app that gets deleted in a week is the most expensive app you can build, because you pay for it and get nothing. I'd apply that test to every line of a quote.

How does AI change what an app costs?

AI has made it far cheaper to try an idea, and only somewhat cheaper to ship a production app.

On one hand, AI build tools have collapsed the cost of trying an idea. An MVP prototype that would have needed a development team two years ago can now be stood up for under £500 using AI app builders. In GitHub's 2023 study, developers with an AI assistant finished a set coding task 55.8% faster than those without, and we feel that kind of gain in our own delivery on well-defined work. For validating a concept or getting a clickable prototype in front of users, it's the cheapest it has ever been.

On the other hand, validated is not the same as production-ready, and this is where a lot of money gets lost. In a 2025 study by METR, experienced developers working on large, mature codebases took 19% longer with AI tools, while believing afterwards that AI had made them 20% faster. AI is brilliant at the first 80% of an app. The last 20%, the security, the scale, the accessibility, the App Store review, the maintenance, is where production cost still lives, and AI doesn't remove it. It just moves it downstream where it's more expensive to fix.

So the smart move in 2026 is to use AI to validate fast and cheap, then invest properly in turning what works into something real. That middle path is what our Vibe Code to Production service exists for, and if you want the longer argument on the quality gap, I wrote about how AI-generated apps compare to production apps separately.

Our own build prices have come down too, because that expensive last 20% isn't fixed. A team that uses AI with real engineering guardrails can take genuine cost out of the production work. We run our Flutter builds through the Agentic Coding Toolkit, which puts proper structure around AI-assisted development. Every change moves from spec to plan to build to verification, with test-driven development and Flutter-specific patterns built in, so the AI speeds the work up instead of degrading the codebase. On the design side, AI-assisted design in Figma plus a reusable design system of shared components and design tokens means the interface is decided once and flows straight into the build, instead of being redrawn screen by screen. The result: we've taken roughly 20 to 30% out of what it costs us to ship a production app over the last two years, with the same testing, the same industry-standard architecture and the same store-review work as before. We pass that saving on.

What does it cost to publish an app?

Publishing an app costs $99 a year for Apple's developer account and a one-time $25 for Google Play, plus the stores' commission on anything you sell through the app. That's small next to the build, but the Apple fee recurs, so it's easy to forget:

• Apple Developer Program: $99 a year, charged in pounds in the UK. It renews annually for as long as your app is live.
• Google Play: a one-time $25 registration fee, paid once and never again.
• Store commission on sales. If you sell subscriptions or in-app purchases, Apple takes 15% if you enrol in its Small Business Program and earned under $1 million the previous year, and 30% above that. Subscriptions drop to 15% for everyone once a subscriber has stayed a year. The flat 30% on everything is gone, and there's more change coming. I covered the detail in our piece on App Store fees in 2026.

How much does it cost to maintain an app?

Maintaining an app with us costs from £675 a month, which is £8,100 a year, and up to £1,495 a month on the top plan. That pays for OS updates, library upgrades, security patches, and the steady drip of changes Apple and Google push out every year.

App Care is our ongoing support and maintenance service, and it makes upkeep a predictable monthly line in your budget instead of a nasty surprise in year two. It comes in three tiers:

• Essentials, from £675 a month: OS compatibility, security patches, critical bug fixes and monitoring.
• Standard, from £995 a month: adds backend and API monitoring, a priority SLA and monthly check-ins with an engineer.
• Premium, from £1,495 a month: adds emergency incident response, quarterly security audits and dedicated hours for new features.

An app that was built well costs less to look after, and an app where corners were cut is where the maintenance bill really bites.

How do you keep app costs down without cutting corners?

Checking the idea before you build saves the most, followed by using one codebase and shipping in phases. Here's what moves the number across our projects:

• Validate before you build. The cheapest feature is the one you didn't build because discovery told you nobody wanted it. This is the whole point of the Gameplan.
• Pick one codebase. Cross-platform avoids paying for the most expensive phase twice.
• Phase it. Ship a focused first version, learn from real users, then spend on what they use. Falling industry-wide downloads mean retention beats a big-bang launch.
• Plan for marketing. Set aside 5% to 15% of turnover once you're live. With fewer people downloading apps overall, getting found and keeping users is where the work now is.
• Choose a team that uses AI properly. Used with real engineering guardrails, AI cuts the hours a build takes without cutting the quality, so a partner who works that way delivers the same production app for less. Ask how they keep the build honest as well as how fast they ship.

How much does Foresight Mobile charge to build an app?

We charge £15,000 to £40,000 for a simple app or MVP, £40,000 to £80,000 for a medium-complexity app, and £80,000 or more for a complex build. Where your app lands depends on what it needs to do, and I'd be wary of anyone who gives you a firm number before understanding that. What I can promise is a competitive price, a full app development team instead of a lone freelancer, a traceable track record including work for brands like Levi's and EA, and ongoing support so your app stays current with iOS and Android long after launch. We keep those bands where they are by building with AI-assisted delivery and one cross-platform codebase, and we still do the testing and architecture work that keeps an app alive.

If you want a real number instead of a range, the fastest route is our App Gameplan. In four weeks you'll know what to build, what it'll cost, and whether it makes commercial sense, for a fixed £3,500 that's credited against your first development sprint if you go ahead. Or just get in touch for a no-obligation chat about your idea.

Frequently asked questions

How much does it cost to build a simple app in the UK in 2026?

A simple app or MVP with a few screens and standard features costs £15,000 to £40,000 with us, with around 3 to 6 weeks of development after the App Gameplan. Below roughly £15,000 you're into no-code or AI-prototype territory, which is fine for validating an idea but usually not ready to put in front of paying customers.

How much would it cost to have someone develop an app for me?

Having an agency develop your app in the UK costs from £15,000 for a simple app to £80,000 or more for a complex one. A freelancer charges by the day instead, typically £375 to £515, so the total depends on how many days the app takes and what you handle yourself, such as design, testing and store submission.

How much does it cost to develop a Flutter app?

A Flutter app costs the same as our bands above, £15,000 to £80,000 or more depending on complexity, because Flutter is what we build most apps in. The saving shows up against native: one Flutter codebase covers iPhone and Android, where native means paying for two apps.

Can ChatGPT or another AI tool build my app for cheaper?

AI can build a prototype or MVP for under £500, which is great for validating an idea. A raw AI build tool doesn't make a production app cheaper, though, because the security, scale, store-review and maintenance work still has to be done properly. The saving comes from a team that uses AI with real engineering guardrails: structured workflows, automated testing and a reusable design system. That's how we've taken roughly 20 to 30% out of our own production build costs over two years without dropping the quality. Use AI to validate cheaply, then build it for real with a team that uses AI the right way.

How does Foresight use AI to keep build costs down?

We run our Flutter builds through the Agentic Coding Toolkit, which puts engineering discipline around AI-assisted development: every change goes from spec to plan to build to verification, with test-driven development and Flutter-specific patterns built in. On the design side we use AI-assisted design in Figma plus a reusable design system, so the interface is defined once and flows straight into the build. The result is fewer hours on a properly tested, well-architected app, and we pass that saving on instead of charging you for the slow way of working.

What are the ongoing costs of an app after launch?

Maintenance on our App Care plans costs from £675 a month (£8,100 a year), with tiers at £675, £995 and £1,495 a month. On top of that, budget for the Apple Developer fee ($99 a year) and any backend hosting.

How much does it cost to publish an app to the App Store and Google Play?

The Apple Developer Program costs $99 a year, charged in local currency, and Google Play charges a one-time $25 registration fee. If you sell through the app, Apple's commission is 15% for Small Business Program members under $1 million of annual proceeds and 30% above, with subscriptions at 15% after their first year.