• Post a Project

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

  • 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.

  • 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.

  • Proficiency in App Development

    3 SIDED CUBE excels in developing mobile and web applications, frequently praised for their technical skills and innovative solutions. Clients from various sectors, including healthcare, environmental services, and nonprofits, have appreciated their ability to deliver high-quality products tailored to specific needs.

  • 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.

  • 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.

  • Impressive Client Engagement

    Clients value 3 SIDED CUBE's engagement and enthusiasm for their projects, which translates into a collaborative and dynamic working relationship. The team's passion for their work and commitment to client success are frequently mentioned as standout qualities.

3 SIDED CUBE Reviews

Submit a Review
All Filters

0 selected

Sort by
Services
Project Cost
Industry
Location

Mobile App Dev for Environmental Nonprofit

  • Mobile App Development
  • $200,000 to $999,999
  • Apr. 2019 - Ongoing
5.0
Quality
4.5
Schedule
4.0
Cost
4.5
Willing to Refer
5.0

"The folks on the team really understood what we were trying to do."

Jul 31, 2020
Platform Manager, WRI
Aaron Minnick
Verified
  • Other industries
  • Washington, District of Columbia
  • 501-1,000 Employees
  • Phone Interview
  • Verified

3 SIDED CUBE developed an iOS and Android mobile app using React Native, as well as a corresponding website. They added functionality that matches reforesters with organizations that provide funding. 

iOS App Dev for Environmental Platform

  • Mobile App Development
  • $200,000 to $999,999
  • Oct. - Dec. 2019
4.0
Quality
4.0
Schedule
4.0
Cost
3.0
Willing to Refer
5.0

"They have talented, pragmatic people on their team."

Jul 30, 2020
Executive, Environmental Platform
Anonymous
Verified
  • Information technology
  • London, England
  • 1-10 Employees
  • Phone Interview
  • Verified

3 SIDED CUBE provided development services for an environmental platform. Following requirements, they developed the MVP of a mobile app for iOS. They onboarded resources that continue to support the product.

App Development for Energy Company

  • Mobile App Development
  • $10,000 to $49,999
  • Mar. - May 2019
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"They have enthusiasm, deliver at a steady pace, and are an all-around great team of people to work with."

May 3, 2020
Head of Digital Excellence, iSupplyEnergy
Kris Askew
Verified
  • Energy & natural resources
  • Bournemouth, England
  • 201-500 Employees
  • Online Review
  • Verified

3 SIDED CUBE developed a prototype of a mobile app for an energy company. The team identified and mapped out journeys then built and designed the platform.

Transportation Mobile App Dev for UK City Council

  • Mobile App Development
  • Less than $10,000
  • Feb. - Nov. 2019
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"3 SIDED CUBE took on the challenge and nailed it."

Apr 16, 2020
Transportation Innovation Manager, Coventry City Council
Sunil Budhdeo
Verified
  • Government
  • United Kingdom
  • 1,001-5,000 Employees
  • Phone Interview
  • Verified

3 SIDED CUBE provided full stack development services to build a transportation safety app for a city council. They implemented location-based notification features to alert users about traffic conditions.

Mobile App Dev for Recycling Technology Startup

  • Mobile App Development
  • Confidential
  • June - Oct. 2019
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

“Their approach to the business, clients, and customer service was second to none.”

Mar 13, 2020
CTO, Polytag Limited
Phil Sutton
Verified
  • Energy & natural resources
  • Chester, England
  • 1-10 Employees
  • Phone Interview
  • Verified

3 SIDED CUBE developed an app that simplifies recycling for consumers and companies. The app interfaces with a cloud infrastructure and three API positions. They developed another app for scanning purposes.

Mobile App Dev for Restaurant & Grocery Company

  • Mobile App Development
  • $50,000 to $199,999
  • Apr. - Sep. 2019
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"3 SIDED CUBE (formerly Chelsea Apps) were highly knowledgeable, nimble and collaborative."

Feb 17, 2020
Senior Group Digital Manager, Itsu
Hilary Ma
Verified
  • Advertising & marketing
  • London, England
  • 501-1,000 Employees
  • Online Review
  • Verified

3 SIDED CUBE (formerly Chelsea Apps) supported the design and development of two testable prototypes. The scope involved building an interactive AR app and a game-based loyalty app.

Mobile-Friendly SDK for Startup

  • Custom Software Development
  • $50,000 to $199,999
  • June 2019 - Jan. 2020
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"Having worked with a lot of other agencies, I think 3 SIDED CUBE (formerly Chelsea Apps) gets it right."

Jan 12, 2020
CTO, Customer Feedback Co.
Anonymous
Verified
  • Advertising & marketing
  • Bristol, England
  • 11-50 Employees
  • Online Review
  • Verified

3 SIDED CUBE (formerly Chelsea Apps) delivered an SKD that can be implemented within iOS and Android applications. The team delivered both the technical architecture and creative components.

AI-enabled E-Commerce Dev for Retail Company

  • E-Commerce Development
  • $200,000 to $999,999
  • July - Feb. 2019
5.0
Quality
5.0
Schedule
5.0
Cost
4.0
Willing to Refer
5.0

"They are a relatively small outfit, but make up for it in energy, drive, and vision."

Nov 29, 2019
Founder & CEO, Boxwize Ltd
Douglas Morton
Verified
  • Retail
  • London, England
  • 1-10 Employees
  • Online Review
  • Verified

3 SIDED CUBE (formerly Chelsea Apps) built the frontend of a mobile-optimized e-commerce website from scratch. (The site incorporates AI functionality.) Their responsibilities included market research and user testing.

Mobile Development for Location-Based Customer App

  • Mobile App Development
  • $50,000 to $199,999
  • Sep. 2018 - Ongoing
5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0

"3 SIDED CUBE is full of passion and truly cares, with exacting standards of delivery and relationship management."

Nov 8, 2019
CEO, Filter
Oliver Morrison
Verified
  • Advertising & marketing
  • London, England
  • 11-50 Employees
  • Online Review
  • Verified

3 SIDED CUBE developed a location-based customer application for a third-party client. With the solution, users could book appointments, manage profile information, and more.

Mobile App Development for Cosmetics Company

  • Mobile App Development
  • $50,000 to $199,999
  • Sep. 2017 - Ongoing
4.0
Quality
4.5
Schedule
4.0
Cost
4.5
Willing to Refer
4.5

“3 SIDED CUBE has always been superb to work with due to their flexibility and enthusiasm.”

Apr 12, 2019
Technology R&D, Lush Cosmetics
Adam Goswell
Verified
  • Other industries
  • Ireland
  • 5,001-10,000 Employees
  • Phone Interview
  • Verified

3 SIDED CUBE has built an array of Android and iOS mobile apps from scratch. Products range from a media player to a camera and tools for internal use. They also provide UX design, QA, and project management. 

Showing 21-30 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

Contact 3 SIDED CUBE

If you’re not seeing exactly what you need here, send this company a custom message. You can talk about your project needs, price, and timeline to get started on your project.

Connect with 3 SIDED CUBE on Social

Get connected to see updates from 3 SIDED CUBE like new case studies, latest reviews, their latest masterpieces in their portfolio, delivered straight to you.

3 SIDED CUBE

(1)
3 SIDED CUBE Logotype

Matt Lawrence

Gadre Infotech Pvt. Ltd.

(1)
Gadre Infotech Pvt. Ltd. Logotype

Shalaka Teli

Now Press Play

(1)
Now Press Play Logotype

Tilly Brooke

Additional Connections

(3)