Mobile Development Company — UK

A mobile development company
for iOS and Android.

Native mobile apps for iPhone and Android — one codebase, both platforms, native performance. Built by a UK mobile development company at a fixed price from £16,000. Live in 8 weeks.

The problem with most mobile development companies

Mobile development is either overpriced, underbuilt, or both.

Two separate codebases

Most mobile development companies build iOS and Android separately — doubling cost, doubling timeline, doubling bugs. You pay for the same app twice.

Agency overhead

£100k+ budgets, months of project management, teams of people who never write a line of code. The mobile app takes forever and costs a fortune.

Fragile outsourced code

Cheap offshore mobile development looks fine in a demo. Then real users arrive and the app crashes, drains battery, and gets one-star reviews.

Wall & Fifth builds mobile apps with one codebase for both platforms using React Native — half the cost, half the time, native performance on both iOS and Android.

What this mobile development company builds

Native mobile apps.
iOS and Android from one codebase.

Every mobile app we build uses React Native with Expo — one codebase that produces native apps for both platforms. Real native performance, not a web wrapper.

iOS app development

Native iPhone and iPad apps submitted to the Apple App Store. Push notifications, camera, GPS, biometric auth, offline storage — all native APIs, all supported.

Android app development

Native Android apps submitted to the Google Play Store. Same codebase as iOS, same features, native performance. One build, both platforms.

Mobile app infrastructure

Authentication, database, API layer, push notification services, analytics, crash reporting. Your mobile app launches with real infrastructure behind it, not a demo server.

App Store submission

We handle the entire submission process for both the Apple App Store and Google Play Store — screenshots, metadata, review compliance, and launch. It is part of the project.

Why choose this mobile development company

One codebase. Both platforms.
Half the cost.

React Native — one codebase, two platforms

We use React Native with Expo to build a single codebase that produces native iOS and Android apps. You get both platforms for the price of one. No compromise on performance.

Fixed-price mobile development

Mobile app from £16,000. Complex mobile app with admin panel and integrations from £30,000. You know the price before you start. No hourly billing, no surprises.

8-week mobile development timeline

Scoping and design in weeks 1–2. Mobile development in weeks 3–6. Testing, App Store submission, and launch in weeks 7–8. Your mobile app is live in two months.

You work with the mobile developer

No account managers. No project layers. The person designing your mobile app is the person building it. Every conversation moves the product forward.

You own the mobile app completely

100% of the code, design, and IP. Complete Git repository, App Store accounts, everything. No lock-in, no licensing, no ongoing fees from this mobile development company.

Mobile development company pricing

Fixed price. Both platforms. No surprises.

Mobile App Build

£16,000

8 weeks · Fixed price · iOS & Android

Native iOS and Android app from a single codebase. Scoping, design, development, App Store submission, and complete code handover. 8 weeks.

Best for: A focused mobile app that needs to launch on both platforms fast.

Extensive Mobile Build

£30,000

8 weeks · Fixed price · iOS & Android

Complex mobile app with multiple user types, admin panel (web), payments, push notifications, third-party integrations.

Best for: Mobile apps that need commercial depth — admin control, roles, integrations.

Mobile apps we've built

Real mobile apps. Real users. Both platforms.

KompiPay

Payments · iOS & Android

Mobile payments app with user onboarding, KYC verification, transaction dashboards, and real-time payment processing on both platforms.

HomeMgmt

Property management · Mobile app

Mobile-first property management app — CRM, onboarding, admin tooling, and push notification flows for landlords and tenants.

See more of our work →

Mobile development company FAQ

Questions founders ask about mobile development.

Most mobile development companies charge £80k to £200k or more — especially if they build iOS and Android separately. Wall & Fifth builds native mobile apps for both platforms from £16,000 using React Native.

Yes. Every mobile app we build runs natively on both iOS and Android from a single React Native codebase. You get both platforms for the price of one.

8 weeks. Scoping and design in weeks 1–2, mobile development in weeks 3–6, testing and App Store submission in weeks 7–8.

React Native is a framework that lets us write one codebase that produces native iOS and Android apps. It is used by Meta, Shopify, and Microsoft. Native performance, half the development cost.

Yes. We submit your mobile app to both the Apple App Store and Google Play Store — screenshots, metadata, compliance, everything. It is part of the project.

Yes. 100% of the code, design, and IP. Complete Git repository handover, plus your own App Store and Google Play accounts. No lock-in.

No. Most clients are non-technical founders. We handle every mobile development decision from architecture to app store submission.

Yes. Many mobile apps need a web-based admin panel or dashboard. The Extensive Build at £30,000 can include both a mobile app and a web admin panel.

Ready to build your mobile app?

Book a free scoping call. We'll talk through your mobile app idea, confirm the platform approach, and give you a fixed price. No obligation.

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