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UK's #1 Mobile App Development Company

Stakk is the UK's #1 mobile app development company, rated #1 on Clutch and based in London with over 10 years of experience building custom iOS apps, Android apps, and cross-platform mobile applications for startups and global enterprises.

  • Min project size
    $50,000+
  • Hourly rate
    $100 - $149 / hr
  • Employees
    10 - 49
  • Locations
    London, England
  • Year founded
    Founded 2016
  • Languages
  • Timezones

Overview by:

Reviewer avatar
Jack Tyson
Co-founder & Relationship Director About the Team

1 Language that we service

  • English

8 Timezones that we service

GMT
Greenwich Mean Time (GMT)
CET
Central European Time (CET)
EST
Eastern Standard Time (EST)
AST
Arabia Standard Time (AST)
MET
Middle East Time (MET)
SGT
Singapore Standard Time (SGT)
PST
Pacific Standard Time (PST)
CTT
China Taiwan Time (CTT)

4 Locations

  • London , England
  • Wilmington , DE
  • Orlando , FL
  • London , England

Select Focus Area
AI Technologies & Models
AI2
10%
AI21
10%
Anthropic
10%
Cohere
10%
Deepmind Gopher
10%
Facebook OPT
10%
GPT-J
10%
GPT-Neox
10%
Hugging Face Bloom
10%
Open AI GPT-3
10%
Frameworks and CMS
Programming & Scripting
Redux
30%
Industries
Advertising & marketing
10%
Arts, entertainment & music
10%
Automotive
10%
Business services
10%
Consumer products & services
10%
Education
10%
Financial services
10%
Information technology
10%
Medical
10%
eCommerce
10%
Clients
Midmarket ($10M - $1B)
35%
Small Business (<$10M)
35%
Enterprise (>$1B)
30%
Certified in:
Mobile App Development Hybrid & cross platform apps

Pricing Snapshot

Min. project size $50,000+
Avg. hourly rate $100 - $149 /hr
Rating for cost 4.9 /5

What Clients Have Said

Stakk offers competitive pricing, with projects ranging from $6,000 to $300,000. Clients consistently find value for money, noting timely delivery and responsiveness. Many reviews highlight their adaptability to project changes without additional costs, making them suitable for startups and established businesses alike.

This summary is based on verified Clutch reviews.

Most Common Project Size

$10,000 - $49,999 based on 27 reviews
< $10,000 $10,000 - $49,999 $50,000 - $199,999 > $200,000

Select a service to see pricing information

Stakk Review Insights

Overall Review Rating

4.9
  • Quality 4.9
  • Schedule 4.9
  • Cost 4.9
  • Willing to Refer 5.0

Top Mentions

Review Highlights

  • Successful Product Launches

    Stakk has successfully launched multiple products, achieving measurable outcomes such as increased user engagement and positive client feedback. Their end-to-end service from development to launch is highly valued.

  • Strong Technical Expertise and Innovation

    Stakk is praised for their technical excellence and innovative solutions across various projects. Clients noted their proficiency in developing mobile and web applications, with a focus on scalability and future-proofing. Their ability to understand and execute complex technical requirements is a standout feature.

  • Effective Communication and Responsiveness

    Stakk is noted for their effective communication and responsiveness. They maintain open lines of communication through various channels, ensuring clients are kept informed and involved throughout the project lifecycle.

  • High-Quality User Experience Design

    Stakk excels in user experience and interface design, creating intuitive and polished products. Their attention to detail in UX/UI design is a recurring theme in client feedback, contributing to high user satisfaction and engagement.

  • Limited Areas for Improvement

    While feedback is overwhelmingly positive, a few clients noted minor areas for improvement, such as expanding team size for faster service delivery. However, these do not detract significantly from overall client satisfaction.

  • Flexibility and Adaptability

    Stakk demonstrates flexibility and adaptability in handling changing client requirements and project scopes. They are willing to accommodate client needs and make necessary adjustments to deliver optimal outcomes.

Stakk Reviews

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Services
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Web Development & Maintenance Services for Fitness Company

  • UX/UI Design Web Design Web Development
  • UX Strategy
    +1
  • $50,000 to $199,999
  • Aug. 2021 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"I appreciate the amount and depth of communication we get from Stakk."

Feb 1, 2022
Director, MyCoach School
Ben Haldon
Verified
  • Other industries
  • United Kingdom
  • 1-10 Employees
  • Phone Interview
  • Verified

Stakk provides web development and maintenance services for a fitness company. They rebuilt the website, revamping MemberPress and matching the UX to the client’s app. Currently, they provide site maintenance.

E-Commerce Development for Fashion Brand

  • E-Commerce Development
  • $10,000 to $49,999
  • Nov. 2021 - Jan. 2022
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"The team was attentive to detail and quality."

Jan 20, 2022
Managing Director, IBEAM Fashion
Leanne Cullen
Verified
  • Retail
  • London, England
  • 1-10 Employees
  • Online Review
  • Verified

Stakk built an e-commerce platform from scratch for a fashion brand. The team conceptualized the whole page based on the customer’s perspective, implementing motion graphics and creating UI/UX designs.

Mobile App Dev & Maintenance for B2B App Service Provider

  • Mobile App Development
  • React Native
    +2
  • Confidential
  • June 2021 - Ongoing
5.0
Quality
4.5
Schedule
4.5
Cost
5.0
Willing to Refer
5.0

"They always keep us updated on the progress of their tasks and respond quickly whenever we have questions."

Dec 23, 2021
Product Manager, B2B App Provider
Anonymous
Verified
  • Other industries
  • Singapore
  • 1-10 Employees
  • Phone Interview
  • Verified

A B2B app service provider engaged with Stakk for their mobile app maintenance services. Besides maintaining the iOS app, they also support future developments for specific features.

Mobile App Development for Cleaning Services Company

  • Custom Software Development Mobile App Development
  • Field Operations Mobile App Development
    +3
  • $10,000 to $49,999
  • June 2021 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"We deal with the people who own the company rather than just an employee."

Aug 4, 2021
Director, Spa Contract Cleaners
Toby Ware
Verified
  • Other industries
  • United Kingdom
  • 1-10 Employees
  • Phone Interview
  • Verified

A cleaning services company hired Stakk to provide mobile app development. They developed a mobile app for the client's staff and a web app platform where the client can do easy personnel management.

Mobile App Development for Mental Health & Wellness Startup

  • Mobile App Development
  • Health & Wellness Mobile App Development
    +3
  • $10,000 to $49,999
  • Dec. 2020 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They've been very helpful at meeting us at our point of need, and they’re great in terms of giving us options."

Jun 10, 2021
Founder & CEO, Talley App
Lara Cena
Verified
  • Other industries
  • London, England
  • 1-10 Employees
  • Phone Interview
  • Verified

Stakk has developed a mobile application for iOS and Android for a mental health and wellness startup. The app enables audio calls between anonymous users and a listener, assuring confidentiality.

App Dev for Fitness Entrepreneur

  • Mobile App Development Other Design Other IT Consulting and SI
  • Health & Wellness Mobile App Development
    +3
  • $10,000 to $49,999
  • Apr. 2021 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

“Stakk’s team is knowledgeable and also understanding of my vision for the business.”

Jun 9, 2021
CEO & Founder, Makemefiitclub
Anonymous
Verified
  • Other industries
  • United Kingdom
  • 1-10 Employees
  • Phone Interview
  • Verified

Stakk is building a fitness application for an entrepreneur. They’ve designed the application and developed it for iOS and Android. They’ve also helped the client secure a lawyer for other services. 

App Dev for IT Recruitment Company

  • Custom Software Development Mobile App Development
  • Enterprise Mobile App Development
    +2
  • $50,000 to $199,999
  • Aug. - Sep. 2019
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"We were more than happy with our working experience with Stakk."

Mar 12, 2021
CEO, HR Tech Startup
Anonymous
Verified
  • Other industries
  • London, England
  • 1-10 Employees
  • Phone Interview
  • Verified

Stakk was hired to develop a native app for an IT recruitment company. The team addressed the client's need for bandwidth technology by creating their MVP and providing backend support to ensure its success.

Web Application for High-Fashion Marketplace

  • E-Commerce Development
  • $10,000 to $49,999
  • Sep. 2020 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
4.5
Willing to Refer
5.0

" They have an ability to understand our evolving concepts and are able to turn them into beautiful designs."

Feb 26, 2021
Head of Buying, Mikado Group SIA
Alexander Verenics
Verified
  • Retail
  • Riga, Latvia
  • 1-10 Employees
  • Online Review
  • Verified

A high-fashion marketplace hired STAKK to design and develop a website. The goal is to deliver a unique and superior personal shopping experience and increase brand awareness.

E-Commerce Redesign & Dev for Canine Products Brand

  • E-Commerce Development UX/UI Design Web Design
  • Other ecommerce systems
    +1
  • Less than $10,000
  • June 2019 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

“I’ve had a brilliant experience working with them.”

Sep 25, 2020
Founder & Director, Cody's Comforts
Taylor Wilkins
Verified
  • Other industries
  • London, England
  • 1-10 Employees
  • Phone Interview
  • Verified

To replace a legacy solution, STAKK developed a new e-commerce site for a small, family-run business. A team of 2–3 developers used the old platform as a basis for implementing improvements.

E-Commerce Dev & Design for Industrial Parts Supplier

  • E-Commerce Development UX/UI Design Web Development
  • Linux server
    +4
  • $10,000 to $49,999
  • Feb. - Aug. 2020
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"STAKK exceeded my expectations."

Sep 11, 2020
Founder & CEO, VW Impex
Vinay Wahi
Verified
  • Other industries
  • Chandigarh, India
  • 1-10 Employees
  • Phone Interview
  • Verified

An industrial parts supplier hired STAKK to design and develop their e-commerce platform. The team used PHP, MHBC, and Laravel to build the platform, which is supported on mobile and web devices.

Showing 11-20 of 30 Reviews

Our Story

Stakk was built on a simple belief: great apps come from great people. Based in London, we are the UK's number one mobile app development company with over ten years of experience. Our entirely in-house senior team has delivered 120 plus apps for startups and global enterprises including Samsung, LNER, and the British Museum. We are proud of our reputation for hitting deadlines, communicating openly, and building mobile experiences that users actually love.

Meet the Team

Jack Tyson

Jack TysonCo-founder & Relationship Director

Jack is the beating heart of every client partnership, the kind of person who makes people feel heard, valued and genuinely excited about what they're building together.

Girish Alwani

Girish AlwaniCo-founder & Project Director

Girish is the steady hand that guides every project from bold idea to brilliant reality, keeping teams focused, clients informed and deadlines firmly in sight.

Vikas Sharma

Vikas SharmaCo-founder & Technical Director

Vikas is the technical visionary who transforms complex challenges into elegant solutions, setting the standard for quality and innovation in everything the team builds.

Clutch verification provides an additional layer of data to help you make the right purchasing decision of business services.

Learn More
Verified Client Reviews
27
Overall Review Rating
4.9
Source
Clutch
Last Updated
March 23, 2026

Business Entity

Business Entity Name Stakk Limited
Source Companies House
Jurisdiction of Formation United Kingdom
Date of Formation February 12, 2020
Status Active
Last Updated June 7, 2022
ID 12458461

Credit Report Results

International Credit Risk Assessment Very Low Risk
Source Creditsafe
Last Updated January 1, 2022
Learn More About The Clutch Verification Process

Locations (4)

37 Lombard Street, 6th Floor, London, EC3V 9BQ LondonEngland EC3V 9BQ

10 - 15

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