For a custom app built by a UK development studio in 2026, £15,000 to £60,000 is a useful planning range for many first commercial releases.

A tightly scoped MVP can start lower. A polished consumer product, two-sided marketplace, regulated app or integration-heavy platform can move well above £60,000 and into six figures. The phrase "an app" covers too many different products for a single average to be useful.

Current 2026 UK guides show the same broad pattern. Coderacle puts most UK mobile apps between £15,000 and £60,000, with simple utilities lower and complex marketplace or enterprise apps higher. Rounded Labs publishes £15,000 to £30,000 for simple app MVPs, £30,000 to £70,000 for medium-complexity apps and £70,000 to £150,000+ for complex builds. Intelivita currently publishes £8,000 to £20,000 for simple apps, £15,000 to £25,000 for moderate projects and £35,000+ for advanced work. Wall & Fifth publishes fixed pricing from £16,000 for a focused app MVP and from £30,000 for a larger build.

Note

Short answer: budget roughly £15,000 to £35,000 for a focused first app, £30,000 to £70,000 for a more substantial product, and £70,000 to £150,000+ when the app has complex integrations, multiple roles, real-time features, regulated data or enterprise requirements.

UK app development cost in 2026: price bands that actually mean something

• Prototype or proof of concept: £3,000 to £10,000. Demonstrates the idea with limited production capability.
• Focused app MVP: £15,000 to £35,000. One core journey, accounts, backend and deployment.
• Mid-complexity commercial app: £30,000 to £70,000. More features, richer backend, payments, notifications and integrations.
• Complex consumer or business app: £70,000 to £150,000+. Multiple roles, real-time data, deeper integrations and greater scale.
• Enterprise or regulated platform: £100,000 to £300,000+. Compliance, complex systems, multiple workstreams and substantial operational requirements.

These are planning ranges synthesised from current 2026 UK agency guides and public pricing, including Rounded Labs, Coderacle, Intelivita, Talk Think Do and Wall & Fifth.

They are not official industry statistics. Public pricing is fragmented, suppliers define complexity differently and some articles include design, testing and launch while others do not. The useful signal is where the ranges overlap.

The first question: do you mean web app or mobile app?

This changes the answer immediately.

A web app runs in the browser. SaaS dashboards, booking platforms, portals, CRMs, marketplaces and internal tools are often web applications even if users regularly access them on a phone.

A mobile app is installed through iOS or Android distribution and can take deeper advantage of device capabilities such as push notifications, camera, location, offline storage and background behaviour.

For many businesses, the cheapest way to reach the outcome is not "build an app for both stores". It is "build the product on the web first".

That can reduce:

• the number of client applications to build;
• store submission work;
• platform-specific testing;
• release coordination;
• duplicated functionality;
• maintenance overhead.

Mobile becomes worth the extra surface area when being installed on the device materially improves the product.

How much does a web app cost in the UK?

A focused custom web app can often be built in the £15,000 to £35,000 region, with larger SaaS platforms, portals and multi-role products moving into £30,000 to £80,000+.

The visible interface is only part of the cost. A production web app may include:

• authentication;
• user permissions;
• database design;
• server-side logic;
• payments;
• email and notifications;
• dashboards;
• admin;
• APIs;
• analytics;
• infrastructure;
• deployment;
• testing.

This is why comparing a £6,000 "website with app-like features" to a £30,000 production SaaS build is usually not a useful comparison.

How much does a mobile app cost in the UK?

For mobile specifically, current public 2026 UK ranges cluster around:

• £10,000 to £30,000 for simple apps and focused MVPs;
• £30,000 to £70,000 for more substantial commercial apps;
• £70,000 to £150,000+ for complex products.

Coderacle's July 2026 guide describes £10,000 to £20,000 for a simple utility, £15,000 to £35,000 for a standard MVP with backend, and £40,000 to £80,000+ for more complex marketplace or enterprise apps.

Rounded Labs puts simple app MVPs at £15,000 to £30,000, medium apps at £30,000 to £70,000 and complex builds at £70,000 to £150,000+.

The gap between those figures is useful. It tells you that "mobile app" still does not specify enough to price a project.

Native versus cross-platform: what changes the cost?

Native iOS and Android

Native development means building platform-specific applications using the technologies and patterns of each ecosystem.

This can be the right choice where:

• platform-specific performance is critical;
• the product uses deep device functionality;
• the organisation has separate native teams;
• platform-specific experience is strategically important.

The trade-off is that two native apps can require more duplicated engineering and testing.

Cross-platform

Frameworks such as React Native and Flutter allow a large proportion of the application logic and interface to be shared across iOS and Android.

For many startup and business apps, this can make commercial sense because the product gains store distribution on both platforms without maintaining two entirely independent applications.

Cross-platform does not mean "one click and both apps are finished". Store behaviour, device differences, testing and native integrations still require work.

Web-first

A responsive web app is usually the lowest-complexity route where native device capability is not core to the proposition.

The correct platform decision should come from usage, not prestige.

The seven things that move an app quote most

1. Number of user journeys

Ten screens can be expensive if those screens coordinate complex states, payments and permissions. Thirty informational screens can be cheap.

Price the behaviour, not the screen count.

2. User accounts and roles

An app with a single account type is simpler than one serving buyers, sellers, administrators, staff and partners.

Each role affects data access, navigation, notifications and testing.

3. Backend complexity

A mobile interface still needs somewhere to store and process data.

The backend can include:

• databases;
• APIs;
• authentication;
• business logic;
• queues;
• file storage;
• search;
• admin;
• reporting;
• integration with existing systems.

For many serious apps, the backend is the product's real complexity.

4. Payments

Adding payments creates both implementation and ongoing transaction costs.

Stripe's current UK standard pricing lists 1.5% plus 20p for standard UK cards, with different rates for premium, EEA and international cards. Stripe's current UK pricing should be checked when modelling the economics of a paid product.

Marketplaces can be more complex because money may need to be split or paid out to multiple parties.

5. Real-time behaviour

Chat, live tracking, collaborative editing, live status, auctions and other real-time features add architectural and testing work.

They can also increase infrastructure usage after launch.

6. Integrations

Every external platform creates another dependency.

Common examples include:

• CRM;
• payments;
• mapping;
• video;
• identity verification;
• accounting;
• booking systems;
• logistics;
• AI models;
• enterprise APIs.

The implementation cost is only part of the issue. The app also needs to handle failures and changes gracefully.

7. Compliance and security

Apps handling health, finance, children, identity or other sensitive data can require additional security, architecture, review and operational controls.

Two apps can look equally simple to the user and have completely different engineering requirements behind the interface.

What should be included in an app development quote?

A serious quote should make clear whether it includes:

1. discovery and product scoping;
2. UX;
3. UI design;
4. mobile or web frontend;
5. backend;
6. database;
7. integrations;
8. admin tooling;
9. testing;
10. deployment;
11. App Store or Play distribution where relevant;
12. analytics and monitoring;
13. source-code ownership;
14. design-file ownership;
15. support after launch.

If one proposal is £18,000 and another is £45,000, this checklist often explains most of the difference.

What Wall & Fifth publishes

Wall & Fifth's app development service currently publishes:

• from £16,000 for a focused custom app MVP;
• from £30,000 for a larger build with more users, features and integrations;
• around eight weeks for a focused app, with larger work commonly taking longer;
• full code ownership on delivery.

Its app development cost page says design, full-stack development and the complete codebase are included in the fixed project fee, while third-party usage such as payments, AI inference and mapping is passed through separately.

Editorial disclosure: Wall & Fifth is affiliated with LocoWeekend's publisher. Its pricing is presented because it is public and relevant to the comparison, not as an independent market benchmark.

What other UK app companies publish

Intelivita

Intelivita currently publishes:

• £8,000 to £20,000 for simple apps;
• £15,000 to £25,000 for moderately complex apps;
• £35,000+ for advanced applications.

Rounded Labs

Rounded Labs publishes:

• £15,000 to £30,000 for a simple app or MVP;
• £30,000 to £70,000 for medium complexity;
• £70,000 to £150,000+ for complex apps.

Talk Think Do

Talk Think Do places its own mobile work inside a published £25,000 to £100,000+ custom-software band, with scope and complexity determining where a project lands.

Coderacle

Coderacle describes most UK mobile apps as £15,000 to £60,000, with more complex products moving beyond that.

Again, the lesson is not to average the numbers blindly. Ask what each band includes.

App-store costs people forget

The build is not the only cost of a mobile product.

Apple currently charges 99 USD per membership year for the Apple Developer Program, or local-currency equivalent where available. This is required for normal App Store distribution. Apple publishes current enrollment pricing here.

Google's current full-distribution Android developer account requires a one-time 25 USD registration fee. Google documents the fee here.

These fees are small compared with development, but they illustrate an important principle: mobile products have platform-level operating requirements that web-only products may avoid.

The bigger ongoing costs after launch

Hosting and database

Early usage can be inexpensive on modern cloud platforms, but storage, compute, bandwidth and database usage rise with traffic and product behaviour.

Payments

Transaction fees scale with revenue.

Email, SMS and push infrastructure

Push delivery itself may be cheap, but messaging services, transactional email and SMS can create variable costs.

Maps and location

Location-heavy apps may depend on paid APIs.

AI

LLM and inference costs are usage-based. A feature that is cheap during testing can become material at scale.

Monitoring and support

Production software needs error tracking, security updates, dependency maintenance and somebody responsible when things break.

Product iteration

The largest post-launch cost is often not infrastructure. It is continuing development.

A commercial app is rarely "finished" at version 1.0.

How long does it take to build an app?

A focused first release commonly takes around 8 to 16 weeks. Larger products can take several months.

Current 2026 public guidance ranges from roughly eight weeks for a focused Wall & Fifth build to two to four months for simple mobile MVPs in Rounded Labs' guide, with complex applications moving into six months or more.

Timeline depends on:

• how much scope is fixed before development;
• number of platforms;
• design depth;
• backend complexity;
• integrations;
• stakeholder review;
• compliance;
• testing and release requirements.

Adding more developers does not reduce duration proportionally. Some work can run in parallel, but product decisions and integrated systems still have dependencies.

When you should not build a native mobile app

A mobile app is the wrong first investment when:

• users only need the product occasionally;
• the main interaction works perfectly in a browser;
• discoverability through search matters heavily;
• the product is still testing whether the workflow is wanted;
• app-store installation creates unnecessary friction;
• the budget would force you to compromise the core product.

A web app can still be highly polished, responsive and installable in some contexts.

Build native because it makes the experience better, not because "having an app" sounds more substantial.

How to reduce app development cost

Build one core journey

The best cost reduction is fewer things to design, build and test.

Choose one primary surface

Web-first or cross-platform can be more economical than separately funding multiple clients before demand is proven.

Use managed infrastructure where it is sensible

Payments, authentication, email and storage are not competitive advantages for most products.

Avoid premature scale engineering

Design the architecture so it can grow, but do not spend the MVP budget pretending day one traffic is day one million.

Keep ownership clean

Repositories, cloud accounts, store accounts, analytics and third-party services should ultimately belong to the client where practical.

Compare scopes, not totals

Ask every supplier to describe exactly what their price includes.

What budget should a UK founder or business start with?

For a first serious custom app in 2026:

£15,000 to £35,000 is a sensible planning range for a focused product.

If you need accounts, payments, richer backend logic, multiple roles or several integrations, think more like £30,000 to £70,000.

If the product is regulated, real-time, marketplace-based, enterprise-integrated or operationally complex, £70,000 to £150,000+ is entirely plausible.

For an established business, the right question may not be "How cheaply can we build an app?" It may be "What is the cost of leaving this customer or operational problem unsolved?"

That is where app development stops being a software expense and becomes a business investment.

Related UK product research

See our guide to the best app development companies in London in 2026 if you are selecting a partner.

If you are still defining the first release, read How Much Does an MVP Cost in the UK in 2026?.

For marketplace products, see Best Marketplace Development Companies in the UK in 2026.

For broader product partners, see The Best UK Digital Product Companies in 2026.

A focused custom app from a UK studio commonly sits around £15,000 to £35,000, while more substantial commercial apps often move into £30,000 to £70,000. Complex, regulated, marketplace or enterprise apps can exceed £70,000 to £150,000.

Sometimes, if the product is extremely focused or you use a freelancer, template, no-code approach or limited prototype. For a custom production app with backend, design, testing and deployment, current UK agency pricing commonly starts higher.

Usually. Supporting one platform reduces development and testing surface area. Cross-platform frameworks can reduce duplication when both stores are required, but both platforms still need testing and release work.

Often, yes. A web app can serve multiple devices through one browser-based product and avoids some app-store overhead. The correct choice depends on whether native device features materially improve the proposition.

Scope and product complexity. User roles, backend logic, payments, integrations, real-time features, design depth, compliance and the number of platforms all move the price.

There is no universal percentage that applies to every app. Maintenance can range from modest infrastructure and occasional fixes to a permanent product team. Budget separately for cloud services, third-party APIs, monitoring, support and ongoing product development.

For normal public distribution, Apple currently charges 99 USD per membership year for the Apple Developer Program. Google's full-distribution Android developer account currently has a one-time 25 USD registration fee. Check both platforms directly because programme terms can change.

Sources and methodology

This guide was researched and reviewed on 7 September 2026.

We compared current public 2026 UK app-development pricing and cost guidance from Wall & Fifth, Coderacle, Rounded Labs, Intelivita and Talk Think Do.

For ongoing platform costs we used primary sources from Apple Developer, Google Android Developer Console and Stripe UK.

Supplier-published pricing should be treated as a market signal rather than independent statistical research. We therefore use overlapping public bands, explain what product types they refer to, and avoid presenting a fabricated "UK average".