Mobile App Development agencies.
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.
- 116 UK agencies offering mobile app development
- Across 26 UK locations
- Reviewed 18 May 2026

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

Atomic Digital Labs, a premier UK-based web development company, is celebrated for its inventive and holistic digital strategies. Our expertise lies in web and app development, UX/UI design, and branding, as we excel in crafting unique digital experiences on various platforms including WordPress, Shopify, and Webflow. Embracing transparency, agile workflows, and advanced technology, Atomic Digital

Wave Marketing, a proficient team of seasoned marketers based in Bristol, UK, specialises in delivering tangible results without undue complexities. We take immense pride in our global collaborations with diverse industry sectors, including technology, education, healthcare, hospitality, and food and beverage sectors. Our core competency lies in digital marketing and automation, making us an ide

Discover Digital, located in Reading, is a renowned agency focusing on digital transformation. This agency is skilled in crafting all-inclusive digital solutions that assist businesses from the conception of their initial vision to tangible, real-world impacts. Distinguished by its commitment to tailor-made, customer-focused experiences, Discover Digital excels in enhancing each client's individua

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

Form Agency, a distinguished marketing and design company in Kent, boasts an international presence. Primarily focusing on the financial and fintech industries, the company is recognised for its proficiency in crafting engaging designs and executing profitable advertising strategies, leveraging its comprehensive industry expertise and knowledge of contemporary design trends. The distinguishing fea

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

Verse, a potent catalyst for business transformation, harnesses disruption to spark positive change. With more than ten years of direct experience, Verse has carved out innovative and disruptive solutions that also provide unwavering support. With a global reach, Verse boasts offices in key UK locations including Kendal (Cumbria), Birmingham, Manchester, Liverpool, and York. Custom-made and impact

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

Situated in the heart of London, Roboto Studio is a leading web development agency specialising in crafting premium, scalable websites and web applications powered by Sanity CMS and Next.js. We pride ourselves in delivering unparalleled editorial experiences, with a strong emphasis on swift optimisation and the deployment of advanced development methods. This ensures our clients' websites are not

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

At The Human Tech Agency, our mission is to improve the quality of people's lives. By coupling empathy with data-driven research, we delve into the unique needs and motivations of our clients and their user base. Harnessing the power of state-of-the-art technology, we at The Human Tech Agency create compelling and interactive digital experiences. Our services encompass website creation, metaverse

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 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

Pixeltree Media, a leading experience design agency headquartered in Manchester, is renowned for its commitment to forging outstanding digital experiences. Specialising in in-depth research and bespoke strategies, the agency propels businesses to new heights. Their distinctive methodology incorporates unrivalled user experience workshops and design sprints. This innovative method morphs convention

Founded at the dawn of the digital age in 1996, BFI is a versatile agency strategically located on the border of Cumbria and Lancashire. Our team of experienced professionals are adept at crafting exquisite web design, bespoke website development, and integration solutions tailored for diverse sectors. BFI prides itself on its proven track record of developing software that aids businesses in succ

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

Rareloop, a Southampton-based digital product studio in Hampshire, UK, specialises in crafting custom web and mobile applications. The agency excels in delivering beautifully designed, user-friendly, and scalable digital solutions across diverse platforms. What distinguishes Rareloop is their client-partnership model, emphasising lasting collaborations and their proficiency in transforming concept

Sparkloop, a distinguished creative agency, is strategically positioned in London and Bath. This agency is celebrated for providing the comprehensive services of a large agency, complemented by the intimate touch of a small consultancy. With a broad spectrum of offerings such as branding, digital solutions, print, and video, Sparkloop stands out in the creative field. Their unique methodology marr

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, 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, 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
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
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