841 agencies indexed·Latest entry: 13 July 2026
Mobile App Development in London · 59 agencies

Mobile App Development agencies in London.

Mobile App Development is the build of iOS and Android applications, native (Swift or Kotlin) or cross-platform (React Native, Flutter, or Capacitor), covering discovery, UX and UI design, engineering, QA on real devices, App Store and Google Play submission, and post-launch maintenance. It sits next to web development but answers to a different set of platform rules. This page shows every agency on AgencyIndex offering mobile app development in London.

At a glance
Showing 25-48 of 59 mobile app development agencies in LondonAll Mobile App Development agencies
Psycle logo
Psycle
Independent·London·11-50 Employees

Psycle Interactive, a comprehensive digital production agency, operates from its bases in Shropshire, London and Barcelona. Renowned for its innovative application of emerging and established technologies, the agency crafts customised digital solutions - including chatbots, educational platforms, machine learning initiatives and interactive marketing experiences. Leveraging over two decades of ind

Diginow logo
Diginow
Independent·London·11-50 Employees

Diginow is a custom web design agency headquartered in London, renowned for crafting tailored websites and digital business solutions for an eclectic mix of clients. Distinguishing itself through a dedication to utilising cutting-edge technologies such as ReactJS and Angular, Diginow excels in creating visually stunning, feature-packed websites and apps that elevate user engagement and optimise bu

Brandwidth logo
Brandwidth
Independent·London·51-200 Employees

Brandwidth, a leading digital agency, operates from two major hubs, London and New York. Expert in catapulting the digital customer journey for aspirational brands, Brandwidth offers an all-encompassing array of services. These comprise strategic consulting, experience design, technological engineering, data-driven strategies, dynamic content creation, and fostering digital skills. What makes Bran

HUB logo
HUB
Independent·London·11-50 Employees

HUB is a distinguished digital agency operating out of London, excelling in the realm of web application development, e-commerce website creation, hosting infrastructure, and all-encompassing digital strategy. With an abundance of knowledge and a rich tapestry of cross-industry experience, HUB stands tall in the digital landscape. Our priority lies in forging robust digital strategies, building co

Tangent logo
Tangent
Independent·London·51-200 Employees

At Tangent, our expertise lies in crafting strategies and refining final designs that enhance life experiences. Our commitment to digital sustainability is as significant as our dedication to aiding clients in achieving their business aspirations. Our diverse team of 90 global professionals, based in locations including Newcastle, London, Spain, South Africa, and Pakistan, provides us with a rich

SmallGiants logo
SmallGiants
Independent·London·11-50 Employees

SmallGiants, a London-based, comprehensive brand evolution and digital marketing agency, excels in crafting sturdy brand, marketing, and tech infrastructures that foster business growth and expansion. Uniquely, they offer services including full-funnel lead generation, data management frameworks, and vibrant brand identity development. Their acclaimed methodology is guided by insightful data, aimi

Justified Studio logo
Justified Studio
Independent·London·11-50 Employees

Justified Studio, a comprehensive creative agency nestled in the heart of London, prides itself on fostering partnerships with forward-thinking, purpose-driven organisations. Their specialty lies in fuelling dynamic growth by seamlessly blending brand strategy, visual identity, and digital product design services. The distinctive edge of Justified Studio is their unwavering commitment to crafting

ConsultMyApp logo
ConsultMyApp
Independent·London·11-50 Employees

ConsultMyApp, a premier app marketing agency situated in the heart of London, UK, differentiates itself with an all-encompassing approach to mobile marketing. This approach takes into account the complete app user journey, encompassing App Store Optimisation (ASO), Paid Acquisition, and Customer Engagement, all underpinned by robust BI and Data Analytics, innovative Creative Design, and strategic

Phygital logo
Phygital
Independent·London·2-10 Employees

Phygital, a leading digital production agency headquartered in the UK, excels in crafting distinct immersive experiences that traverse the digital and physical realms. Pioneering a unique blend of technology and creativity, Phygital stands out by delivering unparalleled brand experiences, utilising cutting-edge AI, VR, AR, and digital engagement techniques. Our team, renowned for its proficiency,

Netpeak Digital Agency logo
Netpeak Digital Agency
Independent·London·51-200 Employees

Established in 2006, Netpeak is a leading digital marketing agency in London, UK. Our broad spectrum of services, encompassing SEO, social media marketing, conversion rate optimisation, and mobile app marketing, sets us apart. We employ a data-driven methodology to substantially boost our clients' revenue. At Netpeak, we prioritise process automation and transparency, underpinned by our unique m

Athlon logo
Athlon
Independent·London·2-10 Employees

As a global brand and product design studio, Athlon is a key player in the international market. Working closely with enterprises driven by purpose, it transforms daring ideas into tangible realities. Athlon fundamentally champions 'Brave Ideas', acknowledging the transformational power of design and its potential to improve lives through innovative and audacious thinking. In Athlon's perspectiv

Axonn Media logo
Axonn Media
Independent·London·2-10 Employees

Axonn is a premier digital marketing agency headquartered in London, renowned for its unique integration of cutting-edge technology and a keen focus on emotional connectivity. This distinctive approach places personal touch at the heart of all their campaigns and client relationships. Their all-encompassing services range from strategic planning, content production, campaign execution, to insightf

Distinction logo
Distinction
Independent·London·51-200 Employees

Distinctinction, a forward-thinking digital agency, is recognised throughout the UK for its dedication towards facilitating business growth and transformation. The unique fusion of design, technology and data-driven innovation is what sets Distinction apart, empowering driven brands to boost growth, enhance profitability, and unlock hidden value. With a strong emphasis on customer-focused, researc

Cude Design logo
Cude Design
Independent·London·2-10 Employees

Cude Design, a Surrey-based strategic and creative web design agency in the UK, distinguishes itself through its UX-focused web design and development methodology. Their unique approach guarantees enhanced user conversion and engagement for clients across diverse sectors. Leveraging their expertise from launching and successfully exiting their own eCommerce business, Cude Design crafts efficient e

Catch Digital logo
Catch Digital
Independent·London·11-50 Employees

Catch, a London-based digital agency, is recognised for its proficiency in crafting superior digital experience platforms. This standout agency specialises in an all-encompassing range of services, including digital strategy, experience design, technology, and performance optimisation. Emphasising its dedication to accessibility and inclusion, Catch boasts team members such as Ann Pilbeam, who ard

Future Platforms logo
Future Platforms
Independent·London·11-50 Employees

Future Platforms is a comprehensive digital product agency headquartered in London. Their unique strength lies in fuelling business expansion and fostering customer allegiance through innovative customer experience solutions. They specialise in both launching fresh propositions and enhancing existing ones. Boasting a robust portfolio of collaborations with international heavyweights such as Domino

NBT Digital logo
NBT Digital
Independent·London·11-50 Employees

NBT is a London-based growth-centric agency, with a global footprint stretching across Turkey, the UAE, Germany, Netherlands and Florida. With a unique ecosystem that bolsters business expansion through bespoke services such as growth strategy implementation and digital marketing, NBT sets itself apart. Our signature offerings like the Growth Academy and NBT Venture Studio equip businesses with th

Kyan logo
Kyan
Independent·London·11-50 Employees

With a rich heritage rooted in Guildford, Surrey, Kyan is a pioneer in the sphere of web and mobile design, as well as development. Boasting over 20 years of industry experience, Kyan excels in delivering bespoke digital solutions, adeptly addressing intricate challenges across a broad range of sectors using cutting-edge technology. Their distinctive methodology fuses brand strategy, user-focused

Creative Navy logo
Creative Navy
Independent·London·11-50 Employees

Creative Navy, a leading UX/UI design agency in London, uniquely blends the craftsmanship of skilled designers with cognitive science insights, focusing on human potential enhancement. Our speciality lies in digital product design, system improvement, and constructing pioneering user interfaces for embedded devices. As a beacon of industry expertise, we leverage a comprehensive understanding of co

UX Connections logo
UX Connections
Independent·London·11-50 Employees

UX Connections, a leading UX agency headquartered in London, boasts an international presence with branches in Göteborg, New York, and Sydney. Renowned for delivering flexible, bespoke UX consulting services, our agency seamlessly integrates with our clients' teams. We specialise in crafting customised UX designs, conducting insightful research, and providing strategic consulting services, designe

Timspark logo
Timspark
Independent·London·11-50 Employees

As a leading software development and IT consulting firm, Timspark, located in the heart of London, UK, sets itself apart in the industry. Offering a broad spectrum of services such as bespoke software development, AI software creation, and data management, Timspark utilises the latest technologies to provide customised, high-performance solutions. Their distinctive methodology merges technical ac

Smart Working logo
Smart Working
Independent·London·201-500 Employees

Smart Working, a distinguished tech talent agency situated in the UK, excels in pairing businesses with superior remote software developers globally. Our unique selling point is our stringent selection process, where we employ AI and technical assessments to evaluate a pool of 35,000 engineers each month. This ensures that only the most competent candidates are aligned with our clients. Boasting a

Together logo
Together
Independent·London·11-50 Employees

Together is a bold, strategy-focused design and development agency headquartered in a confidential location. They excel in forging strategic alliances with premier B2B tech brands. Renowned for their innovative methodology, Together seamlessly transforms clients' aspirations into reality using state-of-the-art design and technology solutions. Their proficiency in remote partnerships, coupled with

EchoGlobal logo
EchoGlobal
Independent·London·11-50 Employees

Global Tech Talent, a niche IT recruitment agency in London, UK, distinguishes itself by valuing excellence above numbers. Our unique offerings encompass personalised IT staffing solutions, including staff augmentation, dedicated software development teams, and customised IT recruitment, all without the dependence on AI pairing or novice talent. We have a robust selection procedure in place and ar

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Editor's note

AgencyIndex tracks 59 mobile app development agencies in London. The list above is filtered to that intersection and ordered with verified and featured listings first.

For the wider editor's view on mobile app development agencies in the UK, see the mobile app development service brief. For context on London's marketing cluster, see the London location brief. The pricing, timeline and red-flag notes below apply to mobile app development as a discipline; they do not change materially in London.

Typical cost
£25,000-500,000+
per project

MVP / lean build £15,000-70,000 · Full production app £40,000-180,000 · Enterprise or regulated £150,000-500,000+. Capacitor / hybrid cheapest at £10,000-80,000. Maintenance retainers typically 15-20% of build cost per year.

Realistic timeline
12-32 weeks per app
MVP to production launch

Discovery 1-3wks · Design 2-6wks · Build 4-16+wks · QA on device matrix 1-4wks · App Store / Play submission 1-3wks (review 1-7 days). Complex enterprise builds run 6-12 months. Maintenance is ongoing.

Red flags
6 to watch
in any pitch
  • · Refusal to name the actual delivery team or disclose if work is being subcontracted offshore
  • · QA done only on simulators with no real-device matrix across iOS and Android versions
  • · No App Store Optimisation, no help with screenshots, metadata, privacy labels, or review rejections
  • · No SLA on bug fixes, no warranty period, no defined severity levels in the contract
  • · Proprietary backend or framework with no clear source code, infrastructure, or data ownership at handover
  • · Cannot speak fluently about App Tracking Transparency, Google Play Data Safety, or EU DMA distribution rules
Frequently asked

What brands ask about mobile app development agencies.

The 5 questions our editors get most often, answered honestly. These apply to mobile app development as a discipline regardless of city.

Curated by humans

UK mobile app pricing splits by complexity and team type. A lean MVP from a boutique studio runs £15,000-40,000, mid-market agencies £30,000-70,000, and enterprise dev houses £60,000-120,000 and up. Full production apps with payments, custom backends, and proper QA sit at £40,000-180,000 across the mid-market, climbing past £400,000 for regulated or enterprise work. Capacitor and hybrid builds are cheapest at £10,000-80,000. Maintenance retainers typically run 15-20% of the build cost per year.