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Award-Winning Mobile App & Software Development

3 Sided Cube is an AI-first technology partner with over 100 million downloads across 87+ countries. We build mobile apps, web applications, custom software, automation workflows, and custom LLMs for organisations that need technology that performs at scale.

Our clients span emergency response, culture, environment and enterprise - including The American Red Cross, Glastonbury Festival, Vodafone and Surfers Against Sewage. We're trusted where failure isn't an option.

  • Min project size
    $50,000+
  • Hourly rate
    $100 - $149 / hr
  • Employees
    50 - 249
  • Locations
    Bournemouth, England
  • Year founded
    Founded 2009
  • Languages
  • Timezones

1 Language that we service

  • English

10 Timezones that we service

ACT
Australia Central Time (ACT)
AET
Australia Eastern Time (AET)
CET
Central European Time (CET)
EST
Eastern Standard Time (EST)
EET
Eastern European Time (EET)
GMT
Greenwich Mean Time (GMT)
MET
Middle East Time (MET)
MST
Mountain Standard Time (MST)
NST
New Zealand Standard Time (NST)
PST
Pacific Standard Time (PST)

2 Locations

  • Bournemouth , England
  • Winter Garden , FL

No have been added yet...

    Pricing Snapshot

    Min. project size $50,000+
    Avg. hourly rate $100 - $149 /hr
    Rating for cost 4.5 /5

    What Clients Have Said

    3 SIDED CUBE offers good value for cost, with project budgets ranging from £8,000 to £500,000. Clients appreciate their flexibility, responsiveness, and alignment with project values. Overall, they deliver high-quality work, often exceeding expectations within agreed timelines.

    This summary is based on verified Clutch reviews.

    Most Common Project Size

    $50,000 - $199,999 based on 38 reviews
    < $49,999 $50,000 - $199,999 $200,000 - $999,999 > $1,000,000

    Select a service to see pricing information

    3 SIDED CUBE Review Insights

    Overall Review Rating

    4.9
    • Quality 4.8
    • Schedule 4.8
    • Cost 4.5
    • Willing to Refer 5.0

    Top Mentions

    Review Highlights

    • Proactive Problem Solving and Innovation

      The team at 3 SIDED CUBE is proactive in identifying solutions and suggesting improvements. Their innovative mindset and ability to think outside the box are appreciated by clients who seek creative and effective solutions.

    • Commitment to Client Values and Mission

      Clients appreciate 3 SIDED CUBE's alignment with their values and mission, particularly in projects focused on social good. Their dedication to understanding and supporting client goals fosters strong partnerships and successful project outcomes.

    • Positive Client Relationships and Engagement

      Clients value the positive and collaborative relationships fostered by 3 SIDED CUBE. Their team is described as friendly, approachable, and genuinely invested in client success, making them a pleasure to work with.

    • Limited Design Capabilities Noted by Some Clients

      While 3 SIDED CUBE excels in development, some clients suggest improvements in their design capabilities. Enhancing their design team could further strengthen their service offerings.

    • Successful Collaboration with Diverse Clients

      3 SIDED CUBE successfully collaborates with a wide range of clients, from nonprofits to tech startups, providing tailored solutions that meet specific industry needs.

    • High-Quality Deliverables and Timely Execution

      3 SIDED CUBE consistently delivers high-quality work on time, with several projects exceeding client expectations. Their commitment to quality and deadlines is a significant factor in their clients' satisfaction.

    3 SIDED CUBE Reviews

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    App Development for Nonprofit Organization

    • Mobile App Development
    • $10,000 to $49,999
    • Oct. 2018 - Ongoing
    5.0
    Quality
    4.5
    Schedule
    5.0
    Cost
    4.5
    Willing to Refer
    5.0

    "We’ve been amazed at their professionalism and efficiency."

    Jan 10, 2019
    Research Analyst, Environmental Nonprofit
    Anonymous
    Verified
    • Other industries
    • Washington, District of Columbia
    • 501-1,000 Employees
    • Phone Interview
    • Verified

    3 SIDED CUBE updated a mobile application for iOS and Android to improve its offline functionality. They cleaned its code, made improvements, and developed an update release. The project is ongoing.

    iOS Mobile App Dev for Personalized Children's Book Platform

    • Mobile App Development
    • Confidential
    • Aug. - Nov. 2018
    5.0
    Quality
    4.5
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    “They worked under a super tight timeline and delivered the product ahead of schedule.”

    Dec 18, 2018
    Head of Product Marketing, Wonderbly
    Anne Thouas
    Verified
    • Other industries
    • London, England
    • 51-200 Employees
    • Phone Interview
    • Verified

    3 SIDED CUBE developed an intricate mobile app for iOS. They used an existing UI/UX design to further refine the frontend interface. They took an advanced API and converted it to a mobile platform.

    Discovery Process for Large Hospital

    • Mobile App Development
    • Confidential
    • Aug. 2017 - Ongoing
    5.0
    Quality
    4.0
    Schedule
    4.5
    Cost
    n/a
    Willing to Refer
    5.0

    “They came well informed… and everyone we met was impressive.”

    Nov 3, 2017
    Head of Communications, Royal Bournemouth Hospital
    James Donald
    Verified
    • Other industries
    • Bournemouth, England
    • 1,001-5,000 Employees
    • Phone Interview
    • Verified

    3 SIDED CUBE presented resolutions to the internal communications challenges within a large healthcare organization. Diverse staff precludes pure computer-based messaging, so a final product must be tailormade.

    Prototype Apple Watch App Dev for Financial Institution

    • Mobile App Development
    • $50,000 to $199,999
    • July - Sep. 2015
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    4.0
    Willing to Refer
    5.0

    "[They offered] out-of-the-box thinking, confidence, and [a] willingness to put themselves on the line."

    Oct 13, 2017
    Former Digital Product Manager, Bank
    Andy Jefferies
    Verified
    • Financial services
    • London, England
    • 10,001+ Employees
    • Phone Interview
    • Verified

    3 Sided Cube created mockup financial apps for a banking firm and conducted a series of tests to gauge usability. Based on feedback, they drafted a proposal and built a prototype.

    Mobile App Dev for Vision Screening Tool

    • Mobile App Development
    • $10,000 to $49,999
    • Aug. 2017 - Ongoing
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    We finished the project so quickly because of the great working relationship [3 SIDED CUBE] fostered.”

    Oct 10, 2017
    Trusts Grants & Major Giving Manager, Vista
    Jaspreet Kaur
    Verified
    • Other industries
    • United Kingdom
    • 51-200 Employees
    • Phone Interview
    • Verified

    3 SIDED CUBE followed optician standards to develop a quick and effective children’s vision testing app. The team built the Android app in seven weeks, provided updates, and has been contacted for more work.

    React Native Development for Loyalty App

    • Custom Software Development
    • $50,000 to $199,999
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    4.0
    Willing to Refer
    5.0

    "They achieved the project on time and with quality."

    Jan 18, 2017
    Founder, Pixie
    Greg Barden
    Verified
    • Information technology
    • United Kingdom
    • 1-10 Employees
    • Phone Interview
    • Verified

    3 Sided Cube partnered with the client's backend team to deliver an iOS and Android mobile app platform utilizing the Agile Method and React Native language.

    App Development for Humanitarian Aid Organization

    • Custom Software Development
    • $50,000 to $199,999
    5.0
    Quality
    5.0
    Schedule
    4.5
    Cost
    5.0
    Willing to Refer
    5.0

    "They were very flexible to our changing requirements."

    Oct 7, 2016
    Digital Manager, Civic Organization
    Anonymous
    Verified
    • Other industries
    • United Kingdom
    • 1,001-5,000 Employees
    • Phone Interview
    • Verified

    3 Sided Cube supplied the technological and design expertise to develop a mobile app for the client on both iOS and Android devices.

    App Development for Online Giving Platform

    • Custom Software Development
    • Confidential
    4.0
    Quality
    4.0
    Schedule
    3.0
    Cost
    4.0
    Willing to Refer
    5.0

    "The thing that I always take away is that they’re [3 Sided Cube] relatively small but they’re very lean."

    Sep 26, 2016
    Product Manager, JustGiving
    Jamie Parkins
    Verified
    • Information technology
    • United Kingdom
    • 51-200 Employees
    • Phone Interview
    • Verified

    3 SIDED CUBE partners to integrate this stakeholder’s charity platform into end clients’ iOS and Android apps.

    Multiple Apps for Maritime Nonprofit

    • Custom Software Development
    • $50,000 to $199,999
    4.5
    Quality
    4.5
    Schedule
    4.0
    Cost
    5.0
    Willing to Refer
    5.0

    "One of the important things they did was that they [3 Sided Cube] really helped me show the business benefit of disrupted agile development ..."

    Sep 26, 2016
    Former Digital Transformation Head, RNLI
    Neil Thornburn
    Verified
    • Other industries
    • United Kingdom
    • 1,001-5,000 Employees
    • Phone Interview
    • Verified

    3 SIDED CUBE delivered multiple mobile applications for this organization, including iOS, Android, and the Apple Watch.

    iPad App Development for Customer Survey Solution

    • Custom Software Development
    • $50,000 to $199,999
    5.0
    Quality
    5.0
    Schedule
    5.0
    Cost
    5.0
    Willing to Refer
    5.0

    "[3 Sided Cube] were responsive in getting things done quickly."

    Aug 15, 2016
    CEO, Avius
    Ben Story
    Verified
    • Other industries
    • Miami, Florida
    • 11-50 Employees
    • Phone Interview
    • Verified

    3 Sided Cube helped the client to develop an iPad application when they did not have the internal resources to build it themselves.

    Showing 31-40 of 49 Reviews

    Fast Play

    Fast Play is how we help you test smart and move fast. Validating your idea in a week, not months. Whether it’s an AI workflow, app concept, or something in-between, we take your idea, build what matters, and hand back a working prototype you can actually use (or use to get sign-off or secure the big bucks).

    Small

    Your shortcut to develop ideas to proof-of-concept

    $14,850 /total
    • Align & Define
    • Ideation
    • Critique & Decide
    • Prototyping: 2 days

    Large

    Maximum time to develop the MVP and prove concepts

    $19,800 /total
    • Align & Define
    • Ideation
    • Critique & Decide
    • Prototyping: 6 days
    • Documentation
    Features

    Small

    $14,850

    /total

    Medium

    $17,820

    /total

    Large

    $19,800

    /total

    Align & Define

    Ideation

    Critique & Decide

    Prototyping

    2 days

    4 days

    6 days

    Documentation

    Small

    $14,850

    /total

    Align & Define

    Ideation

    Critique & Decide

    Prototyping

    2 days

    Documentation

    Medium

    $17,820

    /total

    Align & Define

    Ideation

    Critique & Decide

    Prototyping

    4 days

    Documentation

    Large

    $19,800

    /total

    Align & Define

    Ideation

    Critique & Decide

    Prototyping

    6 days

    Documentation

    Our Story

    We are 3 Sided Cube: a multi‑award‑winning Tech for Good studio that designs and builds in‑house software to save lives, shift systems and scale social impact. Our distributed, cross‑discipline team blends engineering, product, design and ops, guided by collaboration, user‑centred design, transparent delivery and thoughtful AI. We partner with leading mission organisations across disaster response, climate, mental health and global connectivity.

    Meet the Team

    Duncan Cook

    Duncan CookCEO

    Founder of 3 Sided Cube, with a huge passion for building projects that have real measurable impact.

    James Marriott

    James MarriottHead of Creative

    James is a visual communication professional with over 11 years of industry experience in putting a love of making visuals that solve problems to use across design projects spanning UI, print, and brand design.

    Kevin Borrill

    Kevin BorrillHead of Engineering

    Kev's main role at 3 SIDED CUBE is to be head of the engineering team and to ensure that he is wearing a hat backwards at all times. On his down time he enjoys volunteering with the Scouting movement and watching panda videos on the internet.

    Matt Lawrence

    Matt LawrenceHead of Marketing

    With 25 years in marketing, Matt is all about listening, learning, and creating experiences that feel human. He digs into customer behaviour, market dynamics, and the little details that turn good marketing into great.

    What Sets Us Apart

    AI-Native, Human-Centred

    We combine cutting-edge AI development with deep human-centred design. The result? Intelligent, intuitive products that people actually use. From AI-powered apps to automation, we build tech that feels simple but performs powerfully.

    Proven at Global Scale

    With millions of users reached through products like the official Glastonbury Festival app, we know what it takes to scale. Our team delivers reliable, high-performance mobile and web apps built for real-world demand.

    Built for Impact, Not Just Output

    We design and develop digital products that drive measurable real-world impact - from behaviour change to global reach. Trusted by NGOs, governments, and ambitious brands to turn complex challenges into scalable, high-performing apps.

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

    Learn More
    Verified Client Reviews
    48
    Overall Review Rating
    4.9
    Source
    Clutch
    Last Updated
    April 22, 2026

    Business Entity

    Business Entity Name 3 SIDED CUBE DESIGN LTD
    Source Companies House
    Jurisdiction of Formation United Kingdom
    Date of Formation March 15, 2005
    Status Active
    Last Updated February 6, 2019
    ID 5393027

    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 (2)

    Patch, 1st Floor, Bobby's, 2-12 Commercial Road, BournemouthEngland BH2 5LP

    31 - 40

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