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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 £8,000 to £500,000. Clients appreciate their responsiveness, flexibility, and high-quality deliverables, indicating a strong alignment of values and effective project management.

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

  • Proficiency in App Development and Design

    3 SIDED CUBE is highly praised for their ability to develop and design mobile and web applications from scratch, often using advanced technologies like React Native. They deliver high-quality, user-friendly apps that align with client objectives and branding.

  • Strong Focus on Tech for Good

    3 SIDED CUBE is celebrated for their focus on projects that have a positive societal impact. Clients appreciate their commitment to 'tech for good' and their passion for projects that align with this mission.

  • Outstanding Client Relationships

    The team at 3 SIDED CUBE is praised for building strong, supportive relationships with clients. Their approachability and genuine interest in client success foster a collaborative and enjoyable working environment.

  • Innovative and Engaging Solutions

    The team is noted for their creativity and ability to deliver innovative solutions, often exceeding client expectations. Their work in areas such as gamification and unique app functionalities is particularly highlighted.

  • Strong Project Management Skills

    Clients consistently commend 3 SIDED CUBE for their excellent project management, which includes setting clear timelines, maintaining communication, and delivering projects on time and within budget. They are praised for their agile approach and effective use of tools like Basecamp.

  • Challenges with Time Zone Differences

    While generally effective, some clients noted challenges with time zone differences affecting communication. However, 3 SIDED CUBE is recognized for their efforts to accommodate client schedules and maintain project momentum.

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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