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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

Select Focus Area
Application Platforms
Amazon Application Development Framework
20%
Linux server
20%
Other app platform
20%
Windows server
20%
AI Technologies & Models
Anthropic
75%
Open AI GPT-3
25%
Frameworks and CMS
.NET
10%
Other frameworks and CMS
10%
Programming & Scripting
PHP
25%
Python
25%
User Experience Focus
Industries
Education
15%
Energy & natural resources
15%
Government
15%
Medical
15%
Non-profit
15%
Retail
15%
Information technology
10%
Clients
Midmarket ($10M - $1B)
40%
Enterprise (>$1B)
30%
Small Business (<$10M)
30%

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 investments ranging from $10,000 to $500,000. Clients appreciate their responsive communication and project management, often achieving successful outcomes within budget and timeline.

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

  • High Client Satisfaction

    Overall, client feedback indicates a high level of satisfaction with the services provided by 3 SIDED CUBE. Many clients express a willingness to continue working with them on future projects, underscoring the positive impact of their work.

  • Challenges with Flexibility

    While generally praised for their project management, some clients noted challenges with flexibility in adjusting plans mid-project due to the structured nature of their processes. This suggests potential room for improvement in accommodating changes.

  • Commitment to Quality and Detail

    Clients highlight the high standards of quality and attention to detail that 3 SIDED CUBE brings to their work. They are appreciated for their dedication to delivering polished and user-friendly products that meet or exceed expectations.

  • Innovative and Creative Solutions

    3 SIDED CUBE is recognized for their creativity and innovation, often coming up with unique solutions that enhance project outcomes. Their ability to think outside the box and offer fresh perspectives is a valued attribute by clients across various industries.

  • Excellent Communication Skills

    The company is praised for its clear and proactive communication, maintaining transparency and collaboration throughout projects. Clients appreciate their willingness to listen and adapt to feedback, which enhances the overall experience and outcomes.

  • Alignment with Client Values

    3 SIDED CUBE is noted for aligning well with clients' missions and values, especially those centered around social impact and environmental causes. This alignment fosters strong partnerships, as the team is genuinely invested in the success and purpose of the projects they undertake.

3 SIDED CUBE Reviews

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Web Dev & Design for Nonprofit Organization

  • Web Design Web Development
  • $200,000 to $999,999
  • Mar. 2021 - Jan. 2022
5.0
Quality
5.0
Schedule
5.0
Cost
3.0
Willing to Refer
5.0

"3 SIDED CUBE was a pleasure to work with — they worked fast, fluidly, and iteratively."

Feb 20, 2022
Executive Director, Earth HQ
Tim Kelly
Verified
  • Media
  • Washington, District of Columbia
  • 11-50 Employees
  • Online Review
  • Verified

3 SIDED CUBE was tasked with developing and designing an interactive website for a nonprofit. The site featured real-time data reporting on the challenges and solutions to the climate and nature crises.

Android & iOS App Dev for UN Agency

  • Mobile App Development UX/UI Design
  • Confidential
  • Jan. 2021 - Ongoing
4.5
Quality
4.5
Schedule
5.0
Cost
3.5
Willing to Refer
5.0

"They quickly and effectively attend to our needs and concerns."

Feb 8, 2022
Senior Campaign Officer, UNHCR
Lara Schlotterbeck
Verified
  • Other industries
  • Copenhagen, Denmark
  • 1-10 Employees
  • Phone Interview
  • Verified

3 SIDED CUBE has designed and developed a UN agency’s Android and iOS app that facilitates communication between donors and refugees. They’ve created the app’s UI/UX and are iterating a new version. 

iOS App Dev & UI/UX Design for Tech Company

  • Mobile App Development UX/UI Design
  • $50,000 to $199,999
  • Aug. - Dec. 2021
5.0
Quality
5.0
Schedule
5.0
Cost
4.5
Willing to Refer
5.0

"They were passionate about making a social impact and showed a drive for our business to succeed."

Jan 17, 2022
CEO & Founder, Tech Company
Anonymous
Verified
  • Other industries
  • Oxford, England
  • 1-10 Employees
  • Phone Interview
  • Verified

A tech company engaged 3 SIDED CUBE to develop and design an iOS app, which quantifies stakeholders' sustainable actions. The team created wireframes before fully developing the app.

Website & Mobile App Dev & Design for International Org.

  • Custom Software Development Mobile App Development Web Design Web Development
  • $50,000 to $199,999
  • Mar. 2021 - Ongoing
5.0
Quality
4.5
Schedule
5.0
Cost
4.0
Willing to Refer
5.0

"3 SIDED CUBE pushes for ideas that are sustainable and move the world forward to a better place."

Dec 6, 2021
Communications Officer, UNESCO
Anonymous
Verified
  • Government
  • Paris, France
  • 1,001-5,000 Employees
  • Phone Interview
  • Verified

3 SIDED CUBE designed and developed a WordPress website with an integrated networking platform and related mobile app for an international organization. Now, they offer maintenance and cybersecurity services. 

Platform Dev & Design for Women Advancement Company

  • Custom Software Development Mobile App Development UX/UI Design
  • $200,000 to $999,999
  • Apr. 2021 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

“The team is passionate about what they’re building, and they think three steps ahead of us.”

Oct 20, 2021
Founder & CEO, Uplevyl
Shubhi Rao
Verified
  • Other industries
  • Austin, Texas
  • 1-10 Employees
  • Phone Interview
  • Verified

3 SIDED CUBE has developed a women-empowerment company’s tech platform. This involves working on the platform’s front- and backend development, UI/UX designs, website integration, and data architecture.

Prototype Design & Mobile App Dev for Game Dev Agency

  • Mobile App Development
  • $200,000 to $999,999
  • Aug. 2020 - Ongoing
5.0
Quality
5.0
Schedule
4.5
Cost
5.0
Willing to Refer
5.0

"They understand our requirements and the solutions needed to address those."

Aug 12, 2021
Founder, Playful Solutions
Konstantin Mitgutsch
Verified
  • Gaming
  • Austria
  • 1-10 Employees
  • Phone Interview
  • Verified

3 SIDED CUBE created a prototype for the video and gaming platform of a game designing agency. They now refer to the prototype to build a mobile app based on their findings and user-specific design solutions.

iOS & Android App Dev for Entertainment Company

  • Mobile App Development
  • $200,000 to $999,999
  • Oct. 2020 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"When something resonates with them, they’ll go above and beyond to make sure that they can bring it into existence."

Mar 22, 2021
Founder & CEO, UMA Entertainment
Simon O'Kelly
Verified
  • Arts, entertainment & music
  • London, England
  • 11-50 Employees
  • Phone Interview
  • Verified

3 SIDED CUBE serves as the mobile app partner to an entertainment company. Working to build an app for a global event, they are managing discovery, design, development, and launch.

Custom Dev for Blockchain & Cryptocurrency Company

  • Custom Software Development
  • $1,000,000 to $9,999,999
  • July 2017 - Feb. 2021
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They really helped us bring the product to life and perfect the finishing touches."

Feb 26, 2021
Technical lead, Cudo
Peter Willis
Verified
  • Other industries
  • London, England
  • 11-50 Employees
  • Online Review
  • Verified

A blockchain and cryptocurrency company hired 3 SIDED CUBE (formerly Chelsea Apps) for various development projects. The team handled the creation of the client's software, mobile, and web applications.

UX/UI Design for Blockchain Medical App Developer

  • UX/UI Design
  • $10,000 to $49,999
  • Oct. - Nov. 2020
5.0
Quality
5.0
Schedule
5.0
Cost
4.0
Willing to Refer
5.0

"I didn't feel like just another client on their books."

Jan 2, 2021
CEO, Dcentric Health Ltd
Georgina Kyriakoudes
Verified
  • Other industries
  • Limassol, Cyprus
  • 1-10 Employees
  • Online Review
  • Verified

A medical mobile app development company partnered with 3 Sided Cube to revamp the current UX and interface for their own app as well as designing new features.

UX/UI Software Dev for Custom Survey System

  • Custom Software Development UX/UI Design
  • $200,000 to $999,999
  • Apr. - Nov. 2020
5.0
Quality
5.0
Schedule
5.0
Cost
4.0
Willing to Refer
5.0

"It was clear from the beginning that they wanted to fully commit to our mission and go the extra mile."

Nov 20, 2020
Director of Digital Content, Inuous Ltd.
Patrick Hussey
Verified
  • Other industries
  • London, England
  • 11-50 Employees
  • Phone Interview
  • Verified

3 SIDED CUBE helped a consulting firm develop a digital survey platform. After getting background information on the project, they handled UX design, front- and backend development, and QA testing.

Showing 11-20 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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