App Development Company — UK

An app development company
that actually builds properly.

Most app development companies quote £80k and take six months. We build web apps and mobile apps at a fixed price from £16,000 — live in 8 weeks, production-grade code you own completely.

The problem with most app development companies

Most app development companies are built for their own margins — not your app.

The big agency

£80k+ quotes, 6-month timelines, layers of project managers. You are paying for their overhead — not your app.

The cheap offshore team

Low day rates, but the code breaks under real users. No serious developer will touch it when you need to scale your app.

The no-code shortcut

Fast to launch, impossible to grow. You hit the ceiling the moment your app needs custom logic, real integrations, or a second developer.

Wall & Fifth exists because founders deserve a better app development company: one that builds properly, charges fairly, and puts the app first.

What this app development company builds

Web apps. Mobile apps.
Built to launch, designed to scale.

If you have an idea for an app, we can build it. Every app we deliver is production-grade code you own, designed for real users, and built on a foundation you can grow.

Web app development

Dashboards, booking platforms, client portals, admin panels, internal tools, member areas. Built in Next.js, React, TypeScript, and PostgreSQL. Responsive on every device, no app store needed.

Mobile app development

Native iOS and Android apps from a single React Native codebase. Camera, GPS, push notifications, offline access — all supported. We handle App Store and Google Play submission.

Full-stack app infrastructure

Every app includes authentication, database design, API architecture, CI/CD pipelines, SSL, monitoring, and global CDN. Production-ready from day one.

App integrations & payments

Stripe billing, email notifications, third-party API connections, webhooks. If your app needs to connect to something or charge money, we build it in from the start.

Why choose this app development company

Not a sprint shop. Not an offshore team.
A serious app development partner.

We think before we build your app

Most app development companies sell speed. We take 8 weeks because the first two are spent making sure we are building the right app. That thinking stops you wasting money on features nobody uses.

You work directly with the app builder

No account managers. No project management layers. No juniors learning on your app. The person who designs it is the person who builds it.

Production-grade app code

Our apps are not throwaway prototypes. They are built on Next.js, React Native, TypeScript, and PostgreSQL — the same code you will keep building on as your app grows.

You own the app and all the code

100% of the code, the design, and the IP belongs to you. Complete Git repository handover on delivery. No lock-in, no licensing fees.

UK-based app development company

All app development is done in-house in the UK. Nothing is outsourced or offshored. You are working with a studio that takes your app seriously.

App development company pricing

Fixed price. 8 weeks. No surprises.

App Build

£16,000

8 weeks · Fixed price

One core app — web app or mobile app. Scoping, design, full-stack development, deployment, and complete code handover. 8 weeks.

Best for: A single-purpose app that needs to work, look good, and get in front of users fast.

Extensive App Build

£30,000

8 weeks · Fixed price

Complex app with multiple user types, admin panel, payment integration, third-party APIs, and both platforms if needed.

Best for: Apps that need commercial depth — multiple roles, integrations, admin control.

Apps we've built

Real apps. Real users. Real businesses.

KompiPay

Payments app · Web & mobile

Embedded payments app with user onboarding, KYC flows, transaction dashboards, and real-time payment processing.

HomeMgmt

Property management app

Full app build — CRM, onboarding flows, database architecture, admin tooling, and market positioning for a property management platform.

Soissons Belles

E-commerce app

Brand, digital storefront, commercial systems, and app infrastructure for a luxury lifestyle brand entering a new market.

Marine Marketing International

Agency app & platform

Integrated app, design system, technology infrastructure, and digital platform for a specialist marine marketing agency.

See more of our work →

App development company FAQ

Questions founders ask before choosing an app development company.

Most app development companies charge £50,000 to £150,000 or more with open-ended timelines. Wall & Fifth builds apps at a fixed price: £16,000 for the App Build, £30,000 for the Extensive Build. No hidden fees.

8 weeks. Product scoping and design in weeks 1–2, full-stack app development in weeks 3–6, testing and launch in weeks 7–8.

Yes. Web apps in Next.js, React, and TypeScript. Mobile apps in React Native with Expo — one codebase for iOS and Android. We help you decide which platform to start with.

No. Most of our clients are non-technical founders. We handle every technical decision from app architecture to deployment.

Yes. 100% of the code, design, and intellectual property. Complete Git repository handover on delivery. No lock-in, no licensing.

Look for fixed pricing, a clear timeline, production-grade code, and full ownership. Avoid app development companies that charge hourly, outsource offshore, or lock you into their platform.

Next.js, React, TypeScript, and PostgreSQL for web apps. React Native with Expo for mobile apps. Stripe for payments. Vercel for deployment.

You have a working app and the complete codebase. Continue building with us, take it to another team, or grow it yourself. Many clients come back for ongoing app development.

Ready to talk to an app development company that builds?

Book a free scoping call. We'll talk through your app idea, recommend the right platform, and give you a fixed price before you commit to anything.

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