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.
- 59 UK agencies offering mobile app development in London
- Part of the Mobile App Development service set
- Indexed in London
- Reviewed 18 May 2026

We are a London-based digital product studio specialising in building and growing performant websites and digital products.

LION+MASON is a top-rated, strictly senior-led UK Digital Product Consultancy, specialising exclusively in the design, modernisation, and scaling of complex enterprise products and high-transaction platforms. Operating at the intersection of human-centred design and commercial strategy, the agency partners with global brands such as Johnson & Johnson, Best Western, and Cambridge University Press to drive scalable product growth and measurable business performance. Rejecting the traditional agency pyramid, LION+MASON connects clients directly with seasoned industry veterans and operates a unique, tech-agnostic "Architect Model"—remaining independent of the software engineering build phase to provide completely objective, best-fit technical partnerships without vendor lock-in. Consistently ranked by Clutch as one of the top UX Agencies in the UK and a leading global research firm, LION+MASON eschews traditional sales pitches in favour of a zero-barrier, free "Light Briefing," offering enterprise leaders immediate, expert perspective on how to bridge internal skill gaps, build competitive advantage, and architect market-leading digital products.

Bond is a leading brand design consultancy headquartered in Helsinki, with further creative hubs in Dubai, New York, San Francisco, and Tallinn. Specialising in the development of transformative brand strategies and identity systems, Bond excels in evolving fresh concepts into lasting brands. Whether it's pioneering new categories or innovating within established ones, Bond's distinct approach is

Appdrawn, a distinguished custom software development agency located in Watford, Hertfordshire, specialises in creating tailored solutions that meet the distinct business requirements of their clientele. Known for its innovative and client-focused products, this brand is a standout in its sector. Expertly balancing modernisation of legacy software, mobile app creation, and database streamlining.

Fourmeta Agency is an award-winning digital agency specializing in Shopify, ecommerce development, UX/UI design, branding, SaaS, AI product development, MVP development, mobile app development, and digital growth for ambitious brands worldwide.

Marketing Agency in London To help your business grow, Sharkfold digital marketing company makes bold decisions. We provide tailored tactics to reach your target audience and achieve your business goals. Increase brand visibility, leads, and sales with our services. We strive to serve our clients well. We'll learn about your business and goals and utilize our knowledge to help you succeed. SEO, PP

Recognised worldwide, Webskitters LTD is an award-winning company, excelling in web and app design/development, alongside digital marketing. Our specialisation in these areas sets us apart, providing unparalleled services in web design and development. Our proficiency and the innovative integration of cutting-edge technologies cater to a diverse global clientele. Founded in 2010, Webskitters has e

Drool Design Studio, a London-based design agency, epitomises the fusion of Caribbean and British influences. Our specialisms include website design, app development, branding, and cross-platform coding, particularly in Webflow, WordPress, and Shopify. What truly sets our studio apart is our culturally diverse team and bespoke approach to crafting immersive digital experiences. Our ethos centres a

PRISM⁵⁵ is a forward-thinking digital firm with its roots in Guildford and Exeter, UK. Renowned for its commitment to achieving tangible outcomes, PRISM⁵⁵ champions a cooperative, strategy-led approach that prioritises critical questioning to formulate efficient strategies swiftly. Combining cutting-edge design with advanced development and imaginative marketing, PRISM⁵⁵ crafts secure, robust, and

Chameleon is a UK and Ukraine-based digital agency, excelling in delivering powerful digital solutions for non-profits and charities. Our agency differentiates itself by harnessing intelligent technology to streamline processes, lower costs, and amplify service efficacy, thus extending swift help to a broader demographic. Solely devoted to generating social impact, Chameleon strategically employs

Sonat Co., a London-based digital marketing agency, is renowned for its customised digital strategies and data-driven proficiency, purposefully crafted to amplify brands' online visibility and deliver extraordinary outcomes. Concentrating on digital media marketing, along with web design and development, Sonat Co. provides innovative solutions to uplift brands and propel businesses towards success

Product Studio is an innovative digital product design and technology agency situated in the heart of London. This unique agency excels in harmoniously merging creativity and technology, turning lofty concepts into superior digital experiences. With the adept use of advanced AI and emerging tech trends, they fuel growth and inspire innovation. Their client-focused strategy guarantees the delivery

Forward Digital, a distinguished software development agency in the UK, excels in crafting personalised websites and mobile applications. They equip inventive businesses with customised software solutions, specifically designed to overcome individual obstacles and promote expansion. Their unique selling point is their cooperative methodology, which includes clients in every step of the development

Studiomade, a London-based strategic design and digital agency, excels in assisting businesses to thrive and launch innovative ventures through their expertise in branding, technology, and digital solutions. The agency's distinct mission sets it apart, demonstrating its ability to pivot and excel in a variety of industries. With a unique approach towards developing trailblazing projects such as us

Hi Mum! Said Dad, a UK-based design and build agency, is highly esteemed for its proficiency in innovation strategy, user-focused design, and product development. This reputable agency specialises in transmuting concepts into tangible results via comprehensive customer research, swift prototyping, and avant-garde engineering. With a proven track record of catering to globally recognised clients, H

Futurice, a leading digital transformation agency, hails from Finland. The agency distinguishes itself with an exceptional interdisciplinary methodology, merging top-tier technologists, strategists, and designers. They specialise in offering ground-breaking, quantifiable digital solutions spanning various sectors. Renowned for its swift outcomes and enduring influence, Futurice works in concert wi

Brand42, a London-based independent design and digital agency, distinguishes itself through its award-winning methodology in providing strategic branding solutions. Specialising in engaging and globally adaptable digital design, Brand42 is renowned for its unique approach. The innovative one-team strategy employed by the agency successfully bypasses bureaucratic hurdles, thus guaranteeing an exped

Square Balloon, strategically located in London, UK, is a distinguished agency specialising in branding, marketing, and digital solutions. The unique factor that differentiates Square Balloon is their holistic approach to business enhancement, which involves offering bespoke design, technology, and marketing services, seamlessly integrated to boost business expansion and productivity. The agency i

As a premier digital agency with offices in London, Dubai, and Los Angeles, Bing Digital is renowned for its data-informed strategies. Our focus lies in crafting exceptional e-commerce websites that merge engaging UX, ground-breaking features, and compelling marketing strategies to optimise conversion rates and brand recall. We are proficient in platforms such as Shopify and Magento, providing a f

WE ARE POPPINS, a dynamic creative agency nestled in the heart of London, stands out through its all-encompassing approach. We specialise in delivering a broad spectrum of services, encompassing digital, identity, brand, marketing, and experiential solutions. Our unique selling point lies in our ability to craft immersive community experiences, setting us apart in the competitive landscape. At WE

As a leading digital agency in Farnham, Surrey, DRUM has gained recognition for its exemplary services, securing numerous accolades. Our key differentiator lies in our unwavering commitment to generating sustainable and accessible digital media. Our service portfolio spans across digital strategy formulation, website design and development, app creation, video production, and dynamic motion graphi

Crowdform operates as a pioneering venture and digital product studio, located in London and São Paulo. This brand excels in developing cutting-edge digital solutions and initiating ventures designed for the progressing web, emphasising on advancements in Web3, DeFi, and gaming sectors. What differentiates Crowdform is its comprehensive understanding of user challenges and its ability to create te

NetTrackers is a premier digital solutions firm situated in London, UK. The organisation is renowned for its extensive array of services, encompassing superior UI/UX design, inventive digital marketing plans, and powerful ecommerce solutions, all customised to fortify businesses in the digital sphere. Concentrating on data-informed approaches and avant-garde technology, NetTrackers guarantees its

Proudly championing a transparent, efficient, and direct approach, The Bang consistently delivers award-winning products and brands to prestigious firms such as Jaguar, Land Rover, Zoopla, and Mammut. Grounded in digital design expertise, The Bang is a congregation of specialists, each commanding their discipline and collectively striving to disrupt the norm with products that redefine boundaries
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.
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.
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.
- · 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
Mobile App Development agencies in other cities.
Other services in London.
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.