Question 1

How much does a custom web application cost in the UK?

Accepted Answer

In 2026, UK custom web application projects typically range from around £15,000 for a focused MVP (one to two months of engineering work) to £80,000-£250,000 for full production systems with authentication, integrations, admin tooling and multi-environment deployment. Pricing depends on scope, integrations, compliance requirements and whether you need ongoing support. See our UK software cost guide for detailed day-rate benchmarks and worked examples.

Question 2

Why React and Next.js instead of WordPress or a page builder?

Accepted Answer

WordPress and page builders are excellent for marketing sites, but struggle when you need custom business logic, secure user accounts, complex data models, or integration with internal systems. React and Next.js give you server-rendered performance, strong type safety with TypeScript, modern authentication, and a codebase that can scale from an MVP to millions of users without a rebuild. They also align with how Google indexes and ranks sites in 2026 — especially for Core Web Vitals.

Question 3

Do you own the code after the project is finished?

Accepted Answer

Yes. Every engagement includes 100% source code ownership transferred to you. We push all code to your Git repository (or ours during development, transferred on delivery), include infrastructure-as-code for deployments, and provide full documentation. You can continue development with us, an in-house team, or a different agency — without being locked in.

Question 4

How long does it take to build a web application?

Accepted Answer

A focused MVP usually takes 6-12 weeks from discovery to launch. Mid-sized SaaS or internal tools typically run 3-6 months. Large enterprise platforms run 6-18 months and are usually delivered in phases. We publish detailed timeline guidance in our "how long does it take to build an app" article.

Question 5

Can you work with our existing .NET, Java or PHP backend?

Accepted Answer

Yes. We regularly build React/Next.js front-ends that connect to .NET, Java, PHP, Python or Node backends via REST or GraphQL. We can also modernise older backends gradually via our API and legacy modernisation services, so you do not need to rebuild everything at once.

Custom Web Application Development

Technologies We Use

What We Deliver

React & Next.js Expertise

Responsive Design

API Integration

Cloud-Native Architecture

Our Process

Discovery

Design

Development

Testing

Launch & Support

Frequently Asked Questions

Related Services

API & Backend Development

AI Integration & API Services

Product Management Services

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