Key takeaways
Most UK MVPs cost £15,000 to £80,000; simple tools can be validated for £8,000 to £15,000
Web-only SaaS MVPs typically land at £25,000 to £60,000; two-sided marketplaces £35,000 to £80,000
Native iOS and Android roughly doubles the build cost versus a responsive web app
Timelines run 8 to 20 weeks — under 4 weeks usually means corners cut
Feature scope drives cost far more than the technology choice
Budget an extra 15–20% contingency plus hosting, maintenance and legal costs
Cutting scope is always cheaper than cutting quality
If you are a founder trying to work out a budget before you speak to developers, here is the short answer: building an MVP in the UK typically costs between £15,000 and £80,000. Genuinely simple products can be validated for £8,000 to £15,000. Regulated or data-heavy products often need £80,000+ before they are investable.
That range is wide because it reflects real differences in scope, platform and team setup — not vagueness. This guide breaks the numbers down the way I price them in my own studio, so you can budget before committing a penny.
What an MVP actually is
An MVP — minimum viable product — is the smallest version of your product that lets you test your riskiest assumption with real users. It is not a rough prototype, and it is not a demo. It is a working product that does one thing well enough for someone to pay for it or seriously engage with it.
Most cost confusion starts here. Founders often scope an MVP that is really a full product, then get quotes that feel shockingly high. Others strip it back so far that nothing meaningful can be learned from it.
MVP vs prototype
A prototype is a clickable mockup built to communicate an idea, not to function. Budget roughly £2,000 to £6,000 for solid UX and a clickable prototype in Figma.
An MVP is engineered software: real logic, real data, real user accounts. That is where the cost sits.
What affects MVP development cost?
Feature scope
By far the biggest driver. Every feature needs design, build, test and integration time. Login, payments, dashboards, notifications, an admin panel — each one compounds. A good development partner should challenge your feature list, not just quote it.
Platform choice
Web-only is the cheapest and fastest starting point. Native iOS and Android roughly doubles the build compared with a responsive web app. If your users are mobile-first and you genuinely need device features (camera, offline, push), mobile is justified. Otherwise start with web and add mobile once the model is proven.
Design requirements
An MVP does not need to be beautiful, but it does need to be usable — poor UX kills conversion even in testing. Allow 1 to 3 weeks of proper UI/UX work; skipping it usually costs more later when assumptions get rebuilt.
Integrations
Payments, CRMs, accounting tools, email providers, mapping, calendars, video — every integration adds edge cases. Even Stripe needs careful handling of failed payments, refunds and webhooks.
Team setup
A UK studio, an offshore team or a freelancer will give you three very different cost and risk profiles. More on that below.
MVP cost by product type
| Product type | Estimated cost | Typical timeline |
|---|---|---|
| Internal tool / simple web app | £8,000 – £20,000 | 4 – 8 weeks |
| Client portal or booking platform | £15,000 – £35,000 | 6 – 12 weeks |
| SaaS MVP (web-based) | £25,000 – £60,000 | 10 – 16 weeks |
| Custom CRM for a growing team | £20,000 – £50,000 | 8 – 16 weeks |
| Marketplace (two-sided) MVP | £35,000 – £80,000 | 12 – 20 weeks |
| Ecommerce MVP (Shopify-based) | £6,000 – £25,000 | 4 – 10 weeks |
| Regulated / healthtech MVP | £50,000 – £150,000+ | 16 – 30 weeks |
These ranges assume a UK-based team. Offshore development can cut 40–60% off the build cost, but you take on the communication, quality-control and timezone risk yourself.
Freelancer vs studio vs agency
| Freelancer | Small studio | Large agency | |
|---|---|---|---|
| Typical day rate | £250 – £550 | £450 – £750 | £800 – £1,400 |
| Project management | You do it | Included | Included, layered |
| Design included | Rarely | Usually | Always |
| Continuity risk | High | Low | Low |
| Best for | Very narrow scope | First products, custom tools | Enterprise programmes |
| Direct access to the builder | Yes | Yes | Rarely |
Freelancers work well if you are technical enough to manage delivery. Large agencies suit multi-team programmes with procurement behind them. For most first-time founders, a small studio sits in the middle: agency structure without agency overhead, and you talk to the person actually building it.
Hidden costs founders forget
The quoted build cost is rarely the total cost.
- Hosting and infrastructure — £15 to £200 per month for most MVPs, scaling with usage.
- Third-party services — email, analytics, error tracking, and Stripe's 1.5% + 20p per UK card transaction.
- Post-launch fixes — no MVP launches perfectly. Hold back 15–20% of budget as contingency.
- App store fees — Apple charges $99/year; Google a one-off $25.
- Ongoing maintenance — security patches and dependency updates typically £70 to £300+ per month. See my website maintenance plans for what that covers in practice.
- Legal and compliance — GDPR documentation, privacy policy, terms and cookie consent: £500 to £2,000 if you use a solicitor.
How long does an MVP take?
Most MVPs take 8 to 20 weeks from kick-off to launch. Timelines move based on how stable the scope is, how quickly you give feedback and approvals, whether design runs in parallel, and team size.
Be wary of anything promising a real MVP in under 4 weeks unless the scope is genuinely tiny. Compressed timelines usually mean corners cut on testing, security or UX — the expensive kind of saving.
What should an MVP include?
- 1One core user journey. The single flow that delivers your value proposition. Nothing else.
- 2Authentication. Sign-up, login, password reset, basic account management.
- 3The primary feature. Whatever makes the product worth testing at all.
- 4Basic admin. Enough for you to manage users and data without touching a database.
- 5Error handling, backups and basic security. Never optional, even at MVP stage.
- 6Analytics on the key action. If you cannot measure the behaviour you are testing, the build was pointless.
Notifications, referrals, social sharing, multiple user roles, complex reporting and integrations belong in v2 — unless one of them is the hypothesis.
How to reduce MVP cost without wrecking it
- Cut scope, not quality. Every deferred feature is real money saved, and cheap-and-broken costs more than small-and-solid.
- Buy proven building blocks. Don't custom-build auth, payments or email delivery. Stripe, managed auth and transactional email providers exist for a reason.
- Start web-only. A responsive web app reaches everyone and costs far less than two native apps.
- Invest in design first. Changing a Figma file is minutes; changing built software is days.
- Validate before you build. A landing page, waitlist and ten customer interviews can answer your biggest question for a few hundred pounds.
- Use a no-code layer for the boring parts. Internal admin, scheduling or invoicing can often run on tools you already pay for.
A concierge MVP — where you deliver the service manually before automating it — is often the smartest first step. If nobody buys it when you do it by hand, software will not fix that.
Do you actually need an MVP?
Not always. If you are testing demand, a landing page with a waitlist may be enough. If you are testing usability, a prototype may be enough. Build software when you have evidence people want the outcome and the only remaining question is whether they will use your version of it.
If you have already validated demand and need something real in front of users, that is exactly when a build makes sense — see what an MVP is and whether you need one for the decision framework.
What I charge, plainly
I build MVPs, custom CRMs and client portals for UK businesses from Windsor. Simple internal tools start around £8,000; SaaS and marketplace MVPs typically land between £25,000 and £80,000 depending on scope. Every project is fixed-scope and fixed-price, with a written specification before anything is built — so there are no mid-project surprises. Full detail is on my pricing page and custom app development service.
Final thoughts
MVP pricing is not really a technology question — it is a scoping question. The founders who spend least are not the ones who find the cheapest developer; they are the ones who are ruthless about what version one needs to prove.
If you want a straight answer on your own idea, book a free discovery call and I will tell you what it would realistically cost and where I would cut it.
