Design Dev
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Trusted by 150+ UK & International Businesses for Flutter App Development

Flutter App Development Company in London

Beautiful iOS and Android apps from one codebase, so you launch faster and spend less without losing any quality.

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Expert Flutter developers in London building fast, cross-platform apps with a native look, feel and performance.
Cross-Platform Flutter App Development
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Cross-platform Flutter delivery

Cross-platform Flutter delivery

Flutter apps for iOS and Android from one codebase

Design Dev is a Flutter app development company in London building apps for UK startups and businesses. With one shared codebase, we deliver high-quality iOS and Android apps faster and more cost-effectively, with smooth animations.
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Cross-Platform Apps

One Flutter codebase that delivers fast, consistent iOS and Android apps with a truly native feel.
Cross-Platform Apps
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Flutter UI/UX Design

Custom, pixel-perfect designs with smooth animations and a consistent brand on every device.
Flutter UI/UX Design
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Backend & Firebase Integration

Secure backends, Firebase, Supabase, APIs and third-party services your app needs to run well.
Backend & Firebase Integration
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Launch, Updates & Support

App Store and Google Play launch, then fast updates, fixes and new features from one codebase.
Launch, Updates & Support

A clear Flutter process from idea to app stores

01

Discovery & Planning

We define your app's goals, users, core features and platforms before design begins.

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UX/UI App Design

Custom app screens and flows designed once, then tuned for iOS and Android users.

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Flutter Development

Cross-platform development in sprints, with test builds on both iPhone and Android.

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Testing & QA

We test on real iOS and Android devices for performance, stability and usability.

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Launch & Support

Launch on both app stores, then ongoing updates and new features from one codebase.

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Why Flutter is a smart choice for mobile apps

Why Choose Us

Why Flutter is a smart choice for mobile apps

Flutter is Google's open-source framework for building iOS, Android, web and desktop apps from a single codebase. It's used by major global brands and is known for fast performance, beautiful custom interfaces and a quick development cycle that helps teams ship features sooner.

For UK businesses, Flutter means reaching iPhone and Android users with one budget. Updates are faster, the experience consistent and you get near-native iOS and Android performance.

  • One Codebase
  • Faster Launch
  • Lower Cost
  • Beautiful UI

Complete Flutter app development services

01

Flutter App Strategy

Plan features, platforms, monetisation and your launch on both stores.
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Flutter UI/UX Design

Custom app designs with smooth animations and micro-interactions.
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Cross-Platform Development

iOS and Android apps built from one clean, well-tested Flutter codebase.
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Flutter MVPs

Launch your startup MVP on both platforms quickly and affordably.
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Flutter eCommerce Apps

Mobile shopping apps with secure payments, wishlists and push offers.
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Flutter Web & Desktop

Extend your app to web, Windows and macOS from the same codebase.
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Firebase Integration

Auth, Firestore, push notifications, analytics and crash reporting.
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Payments & Subscriptions

Stripe, Apple Pay, Google Pay and in-app subscriptions on both stores.
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API Integration

Connect your app to APIs, CRMs, ERPs and your business systems.
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Native Feature Access

Camera, GPS, biometrics, Bluetooth and other device features.
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App Migration to Flutter

Rebuild old native or hybrid apps in Flutter to cut maintenance costs.
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Maintenance & Support

Flutter upgrades, OS updates, fixes and new features over time.

Ready to launch on iOS and Android?

Speak with our London Flutter developers about a beautiful cross-platform app that launches faster and reaches more users.

Flutter app expertise across key industries

Hospitality & Leisure

Industry focus

Hospitality & Leisure

Flutter apps for restaurants, hotels and venues on iOS and Android with ordering, bookings and loyalty rewards.

  • Mobile ordering
  • Bookings
  • Loyalty rewards
  • Push offers
  • Digital menus

Why Design Dev

A London Flutter partner focused on quality and commercial results

Design Dev works with startups, growing brands and established businesses that need beautiful apps on both platforms without double the cost. Our Flutter developers combine product thinking, mobile UX and disciplined engineering to build apps people enjoy.Expect clear communication, regular test builds for both platforms, clean Dart code you fully own and a focus on results.

150+

Projects delivered

5+

Years experience

UK+

London & worldwide

98%

Client retention

A London Flutter partner focused on quality and commercial results

Strategy, design and engineering for brands that need a Flutter app that performs.

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One app, two stores

Launch on iOS and Android together, with one team and one budget.

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Built for performance

Smooth, fast apps tested on real iPhones and Android devices.

Flutter technologies we work with

Flutter

Flutter

Dart

Dart

Firebase

Firebase

Riverpod

Riverpod

Bloc

Bloc

Supabase

Supabase

REST APIs

REST APIs

GraphQL

GraphQL

Stripe

Stripe

Google Maps

Google Maps

Codemagic

Codemagic

Figma

Figma

What clients say

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Design Dev transformed our e-commerce platform. Their team was efficient, responsive, and delivered a stunning layout that doubled our conversion rate within a month.

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Sarah Jenkins

Vauxhall Marketing - Shopify Development
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An absolute pleasure to work with. They understood our brand identity perfectly and designed a clean, user-friendly SaaS platform that our clients love.

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David Thorne

FluxGig - UI/UX Design
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The custom WordPress build is super fast and easy for our content editors to update. Outstanding attention to detail and SEO optimization.

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Amara K.

Apsara Cosmetics - WordPress Development
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They built a highly custom, secure medical inventory portal on-budget. Their engineering skills are top-tier.

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Julian Reed

Upcycled Medical - Web App Development
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From logo creation to full visual guidelines, Design Dev gave our construction firm a modern and premium corporate look.

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Emily Watson

Smart Build UK - Branding & Design
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Our organic search traffic increased by 150% in three months. Their SEO team really knows their stuff.

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Marcus Sterling

Supra Cycling - Search Engine Optimization

Brands we have worked with

FAQ

Frequently Asked Questions

Flutter lets us build iOS and Android apps from one codebase, saving time and cost while delivering smooth, near-native performance and a consistent design across every device.

Start a project

Tell us about your project

Share your goals, timeline and requirements. Our London team will reply with a practical recommendation and estimate.

UK Branch Office

London, United Kingdom

2 Bessborough Gardens, Westminster, London, UK

+44 7459 579227

Development Center

Sialkot, Pakistan

2nd Floor, Yousaf Plaza, Opposite Mazeeo Sadar Bazar, Sialkot Cantt

+92 337 4905 313
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