How Stakk Performs as a Development Service Provider?

Stakk appears to be a London-based mobile app and digital product studio with a clear emphasis on Flutter-based cross‑platform development. Their public positioning focuses on strategy, UX/UI, and end‑to‑end app delivery for iOS and Android.

Independent directory listings suggest strong client satisfaction, though third‑party review volume outside core agency directories is limited. Buyers seeking a specialist Flutter partner for MVPs and product iteration may find a good fit, while those needing deep native-only expertise should validate capabilities and performance on device‑specific requirements.

What they do

  • Mobile app design and development: cross‑platform apps built with Flutter for iOS and Android 🎯 
  • Product strategy and discovery: scoping, roadmapping, MVP definition 
  • UX/UI design: user research, prototyping, design systems
  • QA, analytics, release, and ongoing support/maintenance
  • Typical engagements span startups to growth‑stage companies; sectors vary by case study and listing disclosures

Advantages observed

  • Flutter specialization: coherent tech focus can accelerate delivery and code maintainability across iOS and Android 
  • End‑to‑end delivery: offers strategy, design, build, QA, and support under one roof, reducing handoff risk 
  • Positive client feedback on agency directories: recurring themes around communication and delivery quality 👍 
  • UK presence: London time zone and onshore collaboration attractive for UK and EU buyers

Consider before buying

  • Technology concentration: heavy reliance on Flutter may require diligence for projects needing advanced native modules, platform‑specific UX, or unusual hardware integrations 
  • Transparency on scale and capacity: buyers should confirm team size, sprint velocity, and seniority mix for larger or multi‑workstream programs 
  • Limited breadth of public reviews across non‑agency platforms: validate references, code quality, and support SLAs through interviews and pilot phases 
  • Pricing expectations: London studio rates typically reflect the UK market; align on budget, scope control, and change processes early

References: 
https://stakk.co.uk/ 
https://clutch.co/profile/stakk
https://www.designrush.com/agency/profile/stakk

Pros

  • Specialization in mobile app development with native and cross-platform capabilities, as reflected on its official site and portfolio 
  • Available third-party reviews on directories note strengths in communication, responsiveness, and collaborative delivery 
  • London-based team provides UK time zone coverage and familiarity with local market and regulations, helpful for UK and EU clients
  • Offers end-to-end services from discovery and product strategy through UX and UI, development, QA, and post-launch support, reducing vendor handoffs 
  • Public materials outline a clear delivery process and showcase sector-diverse case studies, suggesting adaptability across industries

Cons

  • Limited public transparency on pricing and rate cards, budget expectations typically require a scoping conversation 
  • Boutique team size may limit rapid scaling for very large or multi-stream enterprise programs and 24-7 support needs
  • Case studies generally emphasize features and design rather than quantified outcomes or ROI metrics
  • Few publicly stated security or quality certifications, such as ISO 27001 or SOC 2; enterprises may need additional due diligence 
  • For clients outside Europe, UK working hours can reduce overlap compared with distributed or offshore models
Reviewed by: Andra Tanase

About Stakk

Stakk is a London-based company that specializes in providing innovative solutions to businesses worldwide. With a team of highly skilled professionals, we offer a wide range of services that cater to the needs of our clients.
Our goal is to help businesses achieve their full potential by leveraging the latest technologies and delivering exceptional user experiences. At Stakk, we understand that every business is unique and has its own set of challenges. That's why we take a personalized approach to every project, ensuring that our solutions are tailored to meet the specific needs of our clients.
We believe in building long-term relationships with our clients, and we go above and beyond to ensure their satisfaction. Our services include
  • Artificial Intelligence: We harness the power of AI to help businesses make data-driven decisions and automate processes, leading to increased efficiency and productivity.
  • User Experience: We design intuitive and user-friendly interfaces that enhance the overall experience of your customers, resulting in higher engagement and conversions.
  • Mobile App Development: We develop custom mobile applications for iOS and Android platforms that are not only visually appealing but also highly functional and secure.
  • Development: Our team of developers has expertise in a wide range of technologies, allowing us to deliver cutting-edge solutions that meet the ever-evolving needs of businesses.
We take great pride in our work and strive for excellence in everything we do. Our transparent and collaborative approach ensures that our clients are involved in every step of the process, from ideation to execution.
We believe in delivering quality solutions within the stipulated time and budget, without compromising on the quality. Our technology stack includes the latest tools and frameworks, enabling us to develop robust and scalable solutions that drive business growth. We stay updated with the latest trends and advancements in the industry to provide our clients with the best possible solutions. Let's work together to take your business to new heights. Contact us today to discuss how we can help you achieve your goals.

Languages Supported: English

  • Location

    London, England
  • Min. project size

    $25,000 to $50,000
  • Avg. hourly rate

    $50 - $99/hr
  • Employees

    21-50
  • Founded

    Not Disclosed

Capabilities

Artificial Intelligence - 10%

User Experience - 20%

Mobile App Development - 70%

Android App Development - 10%

Cross Platform - 70%

Stakk Reviews

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Stakk FAQs

Stakk has its registered office/HQ at: London, England, United Kingdom.

No, Stakk doesn't have any other offices.

Stakk's core competence is in Android App Development, and Cross Platform.

 

Stakk has experience working with clients in the following industries: ECommerce, ECommerce, ECommerce, ECommerce, Enterprise, Enterprise, Enterprise, Enterprise, Education, Education, Education, Education, Education, Startup, Startup, Startup, Startup, Business Intelligence, and Business Intelligence

Information regarding Stakk's founding year is not available.

Stakk has 21-50 employees as per the record.

Stakk's hourly rate is: $50 - $99

Min. project size requirement for Stakk is $25,000 to $50,000.

Stakk has proficiency in the following language(s): English

Contact Stakk

Registered office:

London, England

Other Locations:
How we get this information: This profile was created using publicly available information by the ITProfiles editorial team. The company has not yet claimed it, so details may be limited or outdated. Updated on January 12, 2026.