# Best Mobile App Development Companies in Greater London, England ## How Many Mobile App Development Companies Products Does G2 Track? **Total Products under this Category:** 2,236 ### Category Stats (Aug 2026) - **Average Rating:** 4.61/5 The average rating of products in this category, based on all submitted ratings - **Top Trending Product:** Mindrops (+0.58%) - Among all products in this category, Mindrops recorded the largest rating increase compared to last month _Last updated: August 04, 2026_ ## How Does G2 Rank Mobile App Development Companies Products? **Why You Can Trust G2's Software Rankings:** - 30 Analysts and Data Experts - 2,000+ Authentic Reviews - 2,236+ Products - Unbiased Rankings G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category. **Sponsored** ### cmBuilder.io cmBuilder democratizes 4D construction site logistics with fast & easy cloud-based workflows, powerful sequencing simulation capabilities, and unparalleled real-time collaboration. [Visit website](https://www.g2.com/external_clickthroughs/record?secure%5Bad_program%5D=ppc&secure%5Bad_slot%5D=category_product_list_llm&secure%5Bcategory_id%5D=1051&secure%5Bchosen_at%5D=2026-08-04T18%3A55%3A10Z&secure%5Bdisplayable_resource_id%5D=2033&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=retargeted_product&secure%5Bplacement_resource_ids%5D%5B%5D=1324845&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=1324845&secure%5Bresource_id%5D=1051&secure%5Bresource_type%5D=Category&secure%5Bsource_type%5D=category_page&secure%5Bsource_url%5D=https%3A%2F%2Fwww.g2.com%2Fcategories%2Fmobile-app-development%2Flocations%2Fgreater-london-england-gb&secure%5Btoken%5D=0479dfefb0c733f727de1ceb9bec7b316153092d85cd30a2f2cb16128b990df3&secure%5Burl%5D=https%3A%2F%2Fwww.cmbuilder.io%2Fconstruction-site-simulation%3Futm_campaign%3DG2_ppc%26utm_source%3Dg2%26utm_medium%3Dreview-site&secure%5Burl_type%5D=custom_url) ### [Tapptitude](https://www.g2.com/products/tapptitude/reviews) Tapptitude is a Product Studio that partners with funded startups and established brands to build interactive, mobile-first digital products that people love to use. We work with our clients as Product Partners, supporting them proactively throughout the journey from idea to launching a product and scaling it up. Startups and brands work with us to define their product, design their prototype, develop and iterate their MVP in order to create a successful business. Our process stands out through our early focus on value and close partnerships. We work on each product to identify and create easy acquisition flows, generate value early to retain users, and build a solid infrastructure for scalability. Our workflows are based on lean principles, rapid prototyping techniques and agile development, making us very fast and flexible in iterating value to users. Our solutions for startups: • Product definition • Rapid prototyping • MVP development Our solutions for larger organisations: • Design sprints • UX research and persona design • Evidence-based growth plan Our technical team delivers full-stack implementation solutions, to build Native and React Native products for iOS, Android, Wearable Devices and the Web. Our services include: • Product strategy and definition • UX/UI design • Native and cross-platform Mobile Development • Web & Backend Development • DevOps • AI, Machine learning and Data Science • Manual & Automated QA • Product launch solutions • Product growth We’ve built products for industries like: • IoT • Health • Proptech • Fintech • Marketplaces and retail • Social platforms • Arts, entertainment and culture **Average Rating:** 4.9/5.0 **Total Reviews:** 31 #### Who Is the Company Behind Tapptitude? - **Seller:** [Tapptitude](https://www.g2.com/sellers/tapptitude) - **Year Founded:** 2013 - **HQ Location:** Cluj-Napoca, Cluj - **Twitter:** @Tapptitude 303 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=90f727f1577e15abd378d40c9f277a7a04239a1081ef25ca0dd737dacd475a1f&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Ftapptitude&secure%5Burl_type%5D=linkedin_company_website) 34 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 74% Small, 23% Medium #### What Do G2 Reviewers Say About Tapptitude? _AI-generated summary from verified user reviews_ ##### Pros - Users commend Tapptitude for their **high professionalism** , enjoying their knowledgeable and responsive team in the development process. - Users value Tapptitude's **strong execution and collaborative spirit** , resulting in a smooth and effective development process. - Users commend the **quality of execution** from Tapptitude, ensuring reliable and timely project development experiences. - Users value the **fast response times** from Tapptitude, ensuring efficient communication and project management. - Users value Tapptitude's **commitment to collaboration and responsiveness** , enhancing the development process and fostering teamwork. ##### Cons - Users face **communication issues** that can lead to misunderstandings and challenges, especially with language barriers involved. - Users face **lack of communication** that complicates collaboration and creates misunderstandings, particularly due to language barriers. - Users experience **project delays** due to communication challenges and timeline adherence, impacting overall satisfaction with Tapptitude. - Users find **timezone differences challenging** , but Tapptitude's round-the-clock availability helps mitigate the issue. - Users find **time zone issues** challenging, yet appreciate Tapptitude’s round-the-clock availability for support. #### What Are Recent G2 Reviews of Tapptitude? **["Exceptional Service during and after the project + very Fast Support"](https://www.g2.com/survey_responses/tapptitude-review-12179679)** **Rating:** 5.0/5.0 stars _— findmyfitbuddy o._ [Read full review](https://www.g2.com/survey_responses/tapptitude-review-12179679) **["Tapptitude Professionals Delivered a Fantastic Solution"](https://www.g2.com/survey_responses/tapptitude-review-12710541)** **Rating:** 5.0/5.0 stars _— Tudor Draghiciu D._ [Read full review](https://www.g2.com/survey_responses/tapptitude-review-12710541) ### [Konstant Infosolutions](https://www.g2.com/products/konstant-infosolutions/reviews) Konstant Infosolutions is a leading mobile app, web, and AI development company with 23+ years of experience delivering future-ready digital products for startups, SMBs, and global enterprises. Whether you’re building a product from scratch or scaling an existing one, we bring deep technical expertise, strong domain knowledge, and a reliable delivery approach trusted by 2,500+ clients worldwide. 𝐖e specialize in end-to-end product engineering, covering: ✔ AI/ML & Generative AI, AI Chatbots, Computer Vision, Predictive Analytics ✔ Cloud Consulting & DevOps, Microservices, Kubernetes ✔ Blockchain & Web3, Smart Contracts, ✔ NFT solutions IoT & Wearables, Industrial IoT, Connected Devices ✔ AR/VR, Immersive Experiences & Simulations ✔ Custom Mobile & Web Development using Swift, Kotlin, Flutter, React Native, Ionic ✔ Web Development & Full-Stack Engineering using ReactJS, Angular, Node.js, Laravel, Python, PHP ✔ Database & Backend Engineering with MongoDB, PostgreSQL, MySQL, GraphQL, SQL ✔ Product UI/UX, Prototyping & Design Systems 𝐖hy global businesses prefer working with us: ✔ 23+ years building scalable and secure digital solutions ✔ 180+ in-house experts (75% senior talent) ✔ 64% repeat business, demonstrating long-term trust ✔ PMP & Scrum-certified teams ensuring predictable delivery ✔ Flexible engagement models to fit every stage of growth 𝐖hat sets Konstant Infosolutions apart: ✔ Tailor-made digital solutions aligned to each client’s unique business goals ✔ Expertise across 15+ industries including fintech, healthcare, eCommerce, real estate, logistics, education, hospitality, and on-demand services ✔ Ability to work seamlessly across time zones with transparent communication ✔ Proven excellence in emerging technologies such as AI, IoT, AR/VR, Blockchain, Cloud, Web3, and more ✔ Dedicated post-launch support ensuring a smooth, long-term product experience If you're looking for a reliable technology partner to build, scale, or modernize your digital product, we’d love to help. Email: sales@konstantinfo.com **Average Rating:** 5.0/5.0 **Total Reviews:** 19 #### Who Is the Company Behind Konstant Infosolutions? - **Seller:** [Konstant Infosolutions](https://www.g2.com/sellers/konstant-infosolutions) - **Year Founded:** 2003 - **HQ Location:** Jaipur, IN - **Twitter:** @konstantinfo 1,714 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=e4af898cca6909f478caa50051b6ae9c0a7e516282731ab2fec829b80ac7922e&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F1496772%2F&secure%5Burl_type%5D=linkedin_company_website) 190 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 90% Small, 10% Medium #### What Are Recent G2 Reviews of Konstant Infosolutions? **["Global English Hub Custom software development by Konstant"](https://www.g2.com/survey_responses/konstant-infosolutions-review-8397758)** **Rating:** 5.0/5.0 stars _— Nasrullah M._ [Read full review](https://www.g2.com/survey_responses/konstant-infosolutions-review-8397758) **["Transparent, Proactive Communication That Feels Like a True Development Partnership"](https://www.g2.com/survey_responses/konstant-infosolutions-review-12926934)** **Rating:** 5.0/5.0 stars _— Raj S._ [Read full review](https://www.g2.com/survey_responses/konstant-infosolutions-review-12926934) #### What Are G2 Users Discussing About Konstant Infosolutions? - [What is Konstant Infosolutions used for?](https://www.g2.com/discussions/what-is-konstant-infosolutions-used-for) ### [3Pillar Global](https://www.g2.com/products/3pillar-global/reviews) In today's fast-paced digital landscape, forward-thinking technology executives recognize that traditional project-based software development is a thing of the past. Over the last decade, pure-play software companies reshaped the industry, delivering significantly higher business impact and ROI by prioritizing user needs and experiences using an iterative product development methodology. Digital product engineering has emerged as the gold standard, and 3Pillar, with almost 20 years of deep expertise building technology with a product mindset, is the partner who can help you maximize your success in the digital age. Just as cloud and mobile computing have become fundamental to software development, 3Pillar envisions a future dominated by human-centric experiences powered by cognitive computing. And, we have invested heavily in this vision. Our Innovation Lab is pioneering advancements in AI-driven development, positioning us to meet the market's evolving demands. At 3Pillar, we believe something truly incredible happens at the intersection of product engineering and cognitive computing. As the leading modern application strategy, design and engineering firm, 3Pillar brings unrivaled expertise that enables clients to execute the mission-critical software development initiatives needed to compete in the modern digital economy. Our global team doesn't just develop software—we help clients set bold ideas into motion and accelerate innovation. 3Pillar supports its clients with offices across North America, Europe, Asia, and Latin America. **Average Rating:** 4.5/5.0 **Total Reviews:** 1 #### Who Is the Company Behind 3Pillar Global? - **Seller:** [3Pillar Global](https://www.g2.com/sellers/3pillar-global) - **HQ Location:** Fairfax, US - **Twitter:** @3PillarGlobal 2,414 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=8d781109d50c785a1d7ab55e5ac881f375793ae927109c85e114b81a5cda8ba0&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F3pillar-global&secure%5Burl_type%5D=linkedin_company_website) 1,792 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 100% Medium #### What Are Recent G2 Reviews of 3Pillar Global? **["Best Agile devops service"](https://www.g2.com/survey_responses/3pillar-global-review-3782486)** **Rating:** 4.5/5.0 stars _— Luca C._ [Read full review](https://www.g2.com/survey_responses/3pillar-global-review-3782486) #### What Are G2 Users Discussing About 3Pillar Global? - [What is 3Pillar Global used for?](https://www.g2.com/discussions/what-is-3pillar-global-used-for) ### [8th Light](https://www.g2.com/products/8th-light/reviews) We believe software is a craft born out of practice. Through our committed practice, we unlock potential that leads to quality solutions and ambitious work. 8th Light is a team of developers, designers, teachers, learners, users, collaborators, and leaders. We’re crafters, so we care about everything we create, building with integrity and in sustainable ways. And we find and nurture talent differently, prioritizing curiosity and creativity over credentials. By exemplifying the values of humanity, education, and ownership in everything we do, our crafters help clients master the challenges in front of them while building great opportunities ahead. 8th Light is a unique software design and development company, one that accelerates personal growth through challenging and influential work, a supportive culture, and transformative outcomes. **Average Rating:** 5.0/5.0 **Total Reviews:** 1 #### Who Is the Company Behind 8th Light? - **Seller:** [8th Light](https://www.g2.com/sellers/8th-light) - **Year Founded:** 2006 - **HQ Location:** Chicago, Illinois, United States - **Twitter:** @8thLightInc 3,474 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=dd079802e75747f08122d95ad01e1ec3cb78fc235d8b58279a66f2d10b9d6361&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F8th-light&secure%5Burl_type%5D=linkedin_company_website) 162 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 100% Large #### What Are Recent G2 Reviews of 8th Light? **[" software development"](https://www.g2.com/survey_responses/8th-light-review-1132399)** **Rating:** 5.0/5.0 stars _— Verified User in Telecommunications_ [Read full review](https://www.g2.com/survey_responses/8th-light-review-1132399) #### What Are G2 Users Discussing About 8th Light? - [What is 8th Light used for?](https://www.g2.com/discussions/what-is-8th-light-used-for) ### [Appinventiv](https://www.g2.com/products/appinventiv/reviews) Appinventiv is an award-winning organization providing impeccable technology solutions to startups and Fortune 500 companies. The company which started its journey back in 2015, today stands strong at 650+ tech experts, engineers and professionals striving towards bridging the gaps between client ideas and reality. The sole aim is to facilitate a rich customer experience and smarter, innovative solutions through on-time delivery and post-development support. They have so far delivered 1000+ projects successfully. The company has on-board disruptive technologies such as Blockchain, Artificial Intelligence, Machine Learning, Internet of Things, among others. Their client list constitutes several recognizable names like Dominos, KPMG, IKEA, Karvan, Gully Beat and many more. This ever enthusiastic startup is challenging boundaries to bring more opportunities in every sector, be it Healthcare, Banking & Finance, Real Estate and Entertainment. **Average Rating:** 3.5/5.0 **Total Reviews:** 1 #### Who Is the Company Behind Appinventiv? - **Seller:** [Appinventiv](https://www.g2.com/sellers/appinventiv) - **Year Founded:** 2015 - **HQ Location:** Noida, IN - **Twitter:** @Appinventiv 7,359 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=66df000f097b5e2ed644f0cc906e0a660473a166b35a911db192d6087f76e5a9&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fappinventiv%2F&secure%5Burl_type%5D=linkedin_company_website) 1,384 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 100% Medium #### What Are G2 Users Discussing About Appinventiv? - [What is Appinventiv used for?](https://www.g2.com/discussions/what-is-appinventiv-used-for) - 1 comment ### [ChromeInfo Technologies](https://www.g2.com/products/chromeinfo-technologies/reviews) We lead the globe in technology and digital transformations. We love challenges and prioritize continued investment in quality and client satisfaction. **Average Rating:** 4.5/5.0 **Total Reviews:** 1 #### Who Is the Company Behind ChromeInfo Technologies? - **Seller:** [ChromeInfo Technologies](https://www.g2.com/sellers/chromeinfo-technologies) - **Year Founded:** 2010 - **HQ Location:** Noida, IN - **Twitter:** @ChromeInfotech 876 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=7e8f8df0c8edae6077d9898ed35d148d5023906d40d6f411eea2a0b236341d77&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fchromeinfotech%2F&secure%5Burl_type%5D=linkedin_company_website) 77 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 100% Medium #### What Are Recent G2 Reviews of ChromeInfo Technologies? **["It trusted global startup"](https://www.g2.com/survey_responses/chromeinfo-technologies-review-2150609)** **Rating:** 4.5/5.0 stars _— Verified User in Internet_ [Read full review](https://www.g2.com/survey_responses/chromeinfo-technologies-review-2150609) #### What Are G2 Users Discussing About ChromeInfo Technologies? - [What is ChromeInfo Technologies used for?](https://www.g2.com/discussions/what-is-chromeinfo-technologies-used-for) ### [Mobi Lab](https://www.g2.com/products/mobi-lab/reviews) Mobi Lab is a mobile design and development studio based in Estonia with a clear mission - to create the best mobile experience. **Average Rating:** 4.0/5.0 **Total Reviews:** 1 #### Who Is the Company Behind Mobi Lab? - **Seller:** [Mobilab](https://www.g2.com/sellers/mobilab) - **HQ Location:** Cologne - **Twitter:** @LabMobi 207 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=32cc50ca4c088259fc2929a09c36fc3859b2c01fbfe7aebd0a3856b0269af4d8&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fmobi-lab&secure%5Burl_type%5D=linkedin_company_website) 18 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 100% Medium #### What Are Recent G2 Reviews of Mobi Lab? **["Great Workmanship"](https://www.g2.com/survey_responses/mobi-lab-review-3645507)** **Rating:** 4.0/5.0 stars _— Nelson B._ [Read full review](https://www.g2.com/survey_responses/mobi-lab-review-3645507) #### What Are G2 Users Discussing About Mobi Lab? - [What is Mobi Lab used for?](https://www.g2.com/discussions/what-is-mobi-lab-used-for) ### [Pulilab](https://www.g2.com/products/pulilab/reviews) Pulilab is a digital product design and development company. **Average Rating:** 4.0/5.0 **Total Reviews:** 1 #### Who Is the Company Behind Pulilab? - **Seller:** [Pulilab](https://www.g2.com/sellers/pulilab) - **Year Founded:** 2011 - **HQ Location:** Budapest, HU - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=862f3c8d88f51ca054cb9d30480819b90bb5eb19e7e6fcb13fed18c7c8f802f3&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fpulilab%2F&secure%5Burl_type%5D=linkedin_company_website) 4 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 100% Small #### What Are Recent G2 Reviews of Pulilab? **["Great engineering capabilities."](https://www.g2.com/survey_responses/pulilab-review-919289)** **Rating:** 4.0/5.0 stars _— Xaiver P._ [Read full review](https://www.g2.com/survey_responses/pulilab-review-919289) #### What Are G2 Users Discussing About Pulilab? - [What is Pulilab used for?](https://www.g2.com/discussions/what-is-pulilab-used-for) ### [Spoon](https://www.g2.com/products/spoon/reviews) Spoon is a digital branding agency based in Cairo, Egypt, focusing on creating unique identities and delivering inspiring digital experiences. **Average Rating:** 4.5/5.0 **Total Reviews:** 1 #### Who Is the Company Behind Spoon? - **Seller:** [Spoon](https://www.g2.com/sellers/spoon) - **HQ Location:** N/A - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=7886df2ed926834e5eb248c77dcfa8e5c815d3ab1f0fe3132ced0dba45868834&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2FNo-Linkedin-Presence-Added-Intentionally-By-DataOps&secure%5Burl_type%5D=linkedin_company_website) 1 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 100% Medium #### What Are Recent G2 Reviews of Spoon? **["ETL tool for any kind of data"](https://www.g2.com/survey_responses/spoon-review-5320737)** **Rating:** 4.5/5.0 stars _— Dasaradha V._ [Read full review](https://www.g2.com/survey_responses/spoon-review-5320737) ### [thoughtbot](https://www.g2.com/products/thoughtbot/reviews) thoughtbot is a leading design, development, and product management consultancy. The thoughtbot team provides end-to-end services along the product development life cycle - from product idea and market validation, to launch, scaling, maintenance, as well as team development. Since 2003, thoughtbot has used an agile, human-centered strategy to partner with clients on quality, impactful products while improving team communication and processes. **Average Rating:** 4.8/5.0 **Total Reviews:** 6 #### Who Is the Company Behind thoughtbot? - **Seller:** [thoughtbot](https://www.g2.com/sellers/thoughtbot) - **Year Founded:** 2003 - **HQ Location:** Boston, US - **Twitter:** @thoughtbot 40,377 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=8f07e7960901394dbabcae3a3f2c9895ab9378e74c181c4cc2811ba53a00a92e&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fthoughtbot-inc-%2F&secure%5Burl_type%5D=linkedin_company_website) 78 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 50% Medium, 50% Small #### What Do G2 Reviewers Say About thoughtbot? _AI-generated summary from verified user reviews_ ##### Pros - Users value the **friendly and experienced team** at Thoughtbot for their dedication and supportive approach. - Users value the **technical expertise** of thoughtbot, praising their skilled and supportive approach throughout the project. - Users value the **deep understanding** thoughtbot has of their brand and goals, enhancing collaboration and support. - Users value the **attention to detail** from thoughtbot, as it enhances collaboration and aligns with their brand goals. - Users appreciate the **collaborative approach** of thoughtbot, feeling supported and engaged throughout the development process. #### What Are Recent G2 Reviews of thoughtbot? **["An Consultancy to Strategise, Design, Product management, and Development"](https://www.g2.com/survey_responses/thoughtbot-review-8849088)** **Rating:** 4.5/5.0 stars _— Monika K._ [Read full review](https://www.g2.com/survey_responses/thoughtbot-review-8849088) **["A Consultancy with a Wealth of Highly Skilled, Experienced and Hospitable Staff"](https://www.g2.com/survey_responses/thoughtbot-review-8413323)** **Rating:** 4.5/5.0 stars _— Philip H._ [Read full review](https://www.g2.com/survey_responses/thoughtbot-review-8413323) #### What Are G2 Users Discussing About thoughtbot? - [What is thoughtbot used for?](https://www.g2.com/discussions/what-is-thoughtbot-used-for) ### [Tivix](https://www.g2.com/products/tivix/reviews) We're passionate about creating innovative digital products and platforms for clients around the world. **Average Rating:** 3.5/5.0 **Total Reviews:** 1 #### Who Is the Company Behind Tivix? - **Seller:** [Tivix](https://www.g2.com/sellers/tivix) - **HQ Location:** N/A - **Twitter:** @Tivix 827 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=7886df2ed926834e5eb248c77dcfa8e5c815d3ab1f0fe3132ced0dba45868834&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2FNo-Linkedin-Presence-Added-Intentionally-By-DataOps&secure%5Burl_type%5D=linkedin_company_website) 1 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 100% Large #### What Are G2 Users Discussing About Tivix? - [What is Tivix used for?](https://www.g2.com/discussions/tivix-what-is-tivix-used-for) - [What is Tivix used for?](https://www.g2.com/discussions/what-is-tivix-used-for) ### [Accenture Song (formerly Fjord)](https://www.g2.com/products/accenture-song-formerly-fjord/reviews) We bring breakthrough digital services to life by redesigning people’s relationships with the world around them. **Average Rating:** 3.8/5.0 **Total Reviews:** 2 #### Who Is the Company Behind Accenture Song (formerly Fjord)? - **Seller:** [Accenture](https://www.g2.com/sellers/accenture) - **Year Founded:** 1989 - **HQ Location:** Dublin, Ireland - **Twitter:** @Accenture 515,103 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=7eb30815b1ec7f09cf0efa6b09fb00ef00bf2d97ebbb5dbc86fc5d0cd8cc8a69&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Faccenture&secure%5Burl_type%5D=linkedin_company_website) 672,927 employees on LinkedIn® - **Ownership:** NYSE:ACN #### Who Uses This Product? - **Company Size:** 100% Large #### What Are Recent G2 Reviews of Accenture Song (formerly Fjord)? **["UI is a way ahead with the nice outlook view of UI"](https://www.g2.com/survey_responses/accenture-song-formerly-fjord-review-5374066)** **Rating:** 4.0/5.0 stars _— Neeraj K._ [Read full review](https://www.g2.com/survey_responses/accenture-song-formerly-fjord-review-5374066) #### What Are G2 Users Discussing About Accenture Song (formerly Fjord)? - [What is Fjord used for?](https://www.g2.com/discussions/accenture-song-formerly-fjord-what-is-fjord-used-for) - [What is Fjord used for?](https://www.g2.com/discussions/what-is-fjord-used-for) ### [ADAMAPP LTD](https://www.g2.com/products/adamapp-ltd/reviews) ADAMAPP LTD is a passionate, dynamic and award-winning mobile application development company based in Birmingham. #### Who Is the Company Behind ADAMAPP LTD? - **Seller:** [ADAMAPP LTD](https://www.g2.com/sellers/adamapp-ltd) - **Year Founded:** 2012 - **HQ Location:** Harrow, GB - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=519974abb2c388604650a09a6b5558163dc154ef3b5cc8baeeb5675a1241b61a&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fadamapp&secure%5Burl_type%5D=linkedin_company_website) 3 employees on LinkedIn® ### [Ampersand + Ampersand](https://www.g2.com/products/ampersand-ampersand/reviews) We are a multi-award winning team of healthcare professionals, creatives, engineers and visionaries united by a single goal: to produce the best possible work, and in doing so, to make a meaningful impact on the world around us. #### Who Is the Company Behind Ampersand + Ampersand? - **Seller:** [Ampersand + Ampersand](https://www.g2.com/sellers/ampersand-ampersand) - **HQ Location:** London, England, - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=7886df2ed926834e5eb248c77dcfa8e5c815d3ab1f0fe3132ced0dba45868834&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2FNo-Linkedin-Presence-Added-Intentionally-By-DataOps&secure%5Burl_type%5D=linkedin_company_website) 1 employees on LinkedIn® ### [Apptology Limited](https://www.g2.com/products/apptology-limited/reviews) Apptology Limited is the leading mobile app development company in London. #### Who Is the Company Behind Apptology Limited? - **Seller:** [Apptology Limited](https://www.g2.com/sellers/apptology-limited) - **Year Founded:** 2009 - **HQ Location:** Sacramento, US - **Twitter:** @GoApptology 322 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=e33ca7779f6009ae2cb787595d247efe60fe13bda92aacc74c3c411ff875baf0&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2F1156184&secure%5Burl_type%5D=linkedin_company_website) 18 employees on LinkedIn® - ‹ Prev‹ Prev - 1 - [2](/categories/mobile-app-development/locations/greater-london-england-gb?filters%5Bcity%5D=greater-london-england-gb&order=popular&page=2#product-list) - [3](/categories/mobile-app-development/locations/greater-london-england-gb?filters%5Bcity%5D=greater-london-england-gb&order=popular&page=3#product-list) - [4](/categories/mobile-app-development/locations/greater-london-england-gb?filters%5Bcity%5D=greater-london-england-gb&order=popular&page=4#product-list) - [Next ›Next ›](/categories/mobile-app-development/locations/greater-london-england-gb?filters%5Bcity%5D=greater-london-england-gb&order=popular&page=2#product-list) Spotlight Categories [Corporate Learning Management Systems](https://www.g2.com/categories/corporate-learning-management-systems) [Experience Management Software](https://www.g2.com/categories/experience-management) [Spend Management Software](https://www.g2.com/categories/spend-management) [AI Sales Assistant Software](https://www.g2.com/categories/ai-sales-assistant) [Marketing Automation Software](https://www.g2.com/categories/marketing-automation) Similar Categories - [Blockchain Developers](/categories/blockchain-developers) - [Other Development Services](/categories/other-development-services) - [Software Developer Services](/categories/software-developer-services) - [Testing and QA](/categories/testing-and-qa) - [Web Developers](/categories/web-developers) ![Adam Crivello](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Adam Crivello") AC Researched and written by [Adam Crivello](https://research.g2.com/insights/author/adam-crivello) Updated October 3, 2024 Mobile application development, or mobile app development, is the process of designing and building mobile apps for internal or external use that perform a specific function or functions beneficial to the user. Mobile app development firms offer services all along the production lifecycle. These developers are typically hired by businesses to assist with projects that the internal development team cannot complete on its own. Businesses launch mobile apps for a variety of reasons, and applications can provide a helpful service to users or simply serve as an extension of a [website or software](https://www.g2.com/categories/web-developers). Mobile applications can be built specifically for certain smartphone operating systems, such as [iOS](https://www.g2.com/categories/ios-developers) or [Android](https://www.g2.com/categories/android-developers), or built with equal functionality across [multiple platforms](https://www.g2.com/categories/cross-platform-developers). A growing number of development firms are also offering services for [wearable apps](https://www.g2.com/categories/wearable-app-development) and the [internet of things (IoT)](https://www.g2.com/categories/internet-of-things-iot-developers). To build or maintain mobile applications in house, businesses can utilize [mobile development software](https://www.g2.com/categories/mobile-development). Show More