Buyer guide · Updated 25 August 2026
How much does app development cost in the UK?
The honest answer is a range, not a magic number. Product scope, platforms, backend complexity, integrations and release quality change the work far more than the number of screens.
Quick answer
Current published UK guides place a proof of concept around £2,000–£5,000, a focused MVP around £10,000–£25,000, and a production app with backend and integrations around £25,000–£60,000. Complex or regulated products can run far higher.
Those are broad market reference points, not my price list. A useful estimate needs a real scope and an honest conversation about risk.
What actually moves the cost?
- The first release. One excellent core journey costs less than six partly defined ones.
- Platform choice. iOS only, Android only, cross-platform and a companion web product are materially different scopes.
- Accounts and data. Authentication, permissions, syncing, offline behaviour, admin tools and migration all add invisible work.
- Integrations. Payments, maps, AI, health data, media processing and third-party systems introduce external constraints and testing.
- Release standard. Accessibility, device coverage, privacy, analytics, support and App Store preparation belong in the estimate.
Where app budgets get wasted
The expensive mistake is not choosing the “wrong technology”. It is building too much before the risky assumption is tested. A product can look complete while still having no evidence that somebody will use it, understand it or pay for it.
Start with the smallest release that can answer a valuable question. Keep later ideas visible in a roadmap, but do not make the first build carry all of them.
What to prepare for a useful estimate
- Who will use the app, and what are they trying to finish?
- What do they do today instead?
- Which one journey must work in the first release?
- Does it need accounts, payments, subscriptions, location, camera, notifications or offline use?
- Is there an existing backend, design or codebase?
- What would make the first release a success?
You do not need a hundred-page specification. Clear answers to those questions are more useful.
Want a range based on the product you actually have in mind?