How much does an MVP cost in the UK in 2026?

Short answer: In the UK in 2026, an MVP (minimum viable product) usually costs between £8,000 and £50,000 when built by an agency, and takes 6 to 16 weeks. A simple web app with one or two core journeys sits at the low end; a mobile, marketplace or AI MVP sits at the high end, and regulated or real-time builds can pass £60,000. RudraX builds MVPs from £5,500, with most projects between £5,500 and £15,000.

An MVP is the smallest version of your product that real users can sign up to and use for the one job that matters most. It is not a clickable prototype and not the full platform. Getting that line right is the biggest single decision on cost.

UK MVP prices by type

These ranges come from three UK agency guides published in 2026 (Magora, Softomate and Rocking Tech). They are build prices before VAT (value added tax), for a first release.

MVP type	What it usually includes	Typical UK range	Typical build time
Clickable prototype or proof of concept	Key screens and one flow, no real backend	£2,000 to £8,000	2 to 4 weeks
Simple web app MVP	Sign-up, one or two core journeys, basic admin	£8,000 to £25,000	4 to 12 weeks
SaaS (software as a service) MVP	Accounts, subscriptions or payments, admin, analytics	£15,000 to £30,000	8 to 12 weeks
Mobile app MVP for iPhone and Android	One cross-platform app, backend, store release	£20,000 to £45,000	10 to 16 weeks
Marketplace MVP	Two sides (buyers and sellers), listings, payments, messaging	£25,000 to £50,000	10 to 16 weeks
AI (artificial intelligence) MVP	A core feature built on a language model or machine learning, with testing of its answers	£20,000 to £50,000	8 to 16 weeks
Regulated, real-time or multi-platform MVP	Health or financial data, live updates, several apps	£60,000 to £150,000 and more	4 months or longer

Magora, a London agency, reviewed 12 of its own estimates and found first releases of new products cost £11,000 to £34,000, with a median of about £25,000. Rocking Tech puts most funded UK startups in the £30,000 to £60,000 bracket. Both are honest numbers for the way those firms work. The spread comes from scope and from who does the work, which the next two sections explain.

What drives the cost of an MVP

1. Number of core journeys. Each thing a user can do from start to finish (sign up, book, pay, upload, get a result) needs design, build and testing. Three journeys cost roughly three times one.
2. Platforms. A web app is cheapest. A mobile app for both stores costs more, though one cross-platform codebase (React Native or Flutter) costs far less than two native apps.
3. Integrations. Payments, calendars, a CRM (customer relationship management system) or an older internal system are where estimates most often grow. An undocumented API (application programming interface) on the other side can double the time for that part.
4. AI features. An AI feature needs prompt and model design, a set of test cases to check its answers, guardrails and a running cost for model usage. Budget for the testing, not only the build.
5. Compliance. Health data, payments and anything under UK GDPR (General Data Protection Regulation) need access controls, audit logs and a privacy review from day one.
6. Design depth. A tested user journey costs more up front and usually saves rework, because fewer screens need changing after launch.
7. Who builds it. This is the biggest variable, covered next.

Why UK quotes differ so much: day rates

Most of an MVP's price is people's time. Rocking Tech, citing IT Jobs Watch, gives a median of £575 a day for a senior full-stack contractor in July 2026, with London above £750 and other regions nearer £500. Softomate puts London agency rates at £450 to £750 per developer day.

A worked example: two developers and a designer for eight weeks is about 120 person-days. At £575 a day that is £69,000 before project management and testing. That is why a London-only team rarely quotes below £30,000 for a full MVP, and why a tight scope matters so much: every extra week adds several thousand pounds.

Teams that combine UK leadership with engineers elsewhere, as RudraX does with its UK and India team, charge less for the same scope. The questions to ask any such supplier are who owns delivery, who you speak to each week, and who owns the code.

How long an MVP takes

Most UK guides agree on 6 to 16 weeks of build for a first release, plus 1 to 3 weeks of discovery before it. A typical plan:

1. Discovery, 1 to 3 weeks. Agree the users, the one job, the journeys and what is out of scope. Discovery sprints are usually priced separately, from about £3,000 to £4,500.
2. Design and build, 6 to 12 weeks. Weekly demos of working software, one journey at a time.
3. Hardening, 1 to 2 weeks. Security, payments, performance and error tracking.
4. Launch. Release to first users with analytics already switched on.

Focused builds can be faster. RudraX delivered the My Health Screen healthcare booking platform in 4 weeks.

The costs people forget

• Discovery. If a quote has no discovery phase, the scope has not been tested yet and the price will move.
• Admin and support tools. Someone will need to fix a wrong email address or remove a test account in week one. If the MVP has no admin screen for that, a developer does it by hand, every time.
• Analytics. Without usage data from the first day, you cannot tell what to build next. Put it in the MVP scope, not the backlog.
• Hosting and services. Servers, database, email, text messages and AI model usage are monthly costs that grow with users.
• Maintenance. Plan for roughly 15 to 25 per cent of the build cost each year.
• Phase two. Real users will change your priorities. Budget for a second phase and ask how your contract handles changes once you are live.

Fixed price or time and materials?

A fixed price suits an MVP when the scope is clear: you know what you will pay and the supplier knows what finished looks like. It works less well once users arrive and priorities start to shift each week; at that point a small dedicated team working in two-week cycles is usually easier to manage than a stream of change requests. Many founders use a fixed price for the MVP and move to a dedicated team after launch.

Can I build an MVP with AI coding tools instead?

For a prototype to test an idea with users or investors, AI coding and no-code tools are now a sensible and cheap first step. For a product that takes payments, stores personal data or has to pass investor due diligence, you still need someone accountable for security, data protection, testing and the code itself. A common route is to prototype with AI tools, then rebuild the parts that worked on a production stack.

How to keep the cost down

1. Pick one user and one job. Everything else waits for version two.
2. Write down what is out of scope before the build starts. Mid-build changes are the most expensive kind.
3. Use proven services for sign-in, payments and messaging rather than building your own.
4. Go cross-platform for mobile unless you have a specific reason not to.
5. Ask for weekly demos of working software, not slides.
6. Make sure you own the code and that it runs on a stack your next engineers can pick up.

What an MVP costs at RudraX

RudraX Technologies is a London software company with UK-led delivery and engineers in the UK and India. Our MVPs start from £5,500, and most fall between £5,500 and £15,000 on a fixed scope, against £14,000 to £37,500 for the same scope at typical UK agency day rates. Most production MVPs take 6 to 10 weeks, with weekly demos throughout, on React, TypeScript, Supabase and PostgreSQL so the MVP can grow into the full platform rather than being rebuilt.

You can see a price range and delivery time for your own idea in under two minutes with our software development cost calculator, with no email needed. To talk it through, see how we approach MVP development in London, read how we built My Health Screen in 4 weeks, or book a free 30-minute call.

If you are planning a full app rather than a first release, our guide to app development cost in the UK covers production and enterprise builds, and our 12-point checklist for choosing an MVP agency in London helps you compare quotes.