UK based Ruby on Rails and React web development team

From responsive websites to complex web applications, we create digital experiences that scale from mobile to desktop. Our Scotland-based team delivers e-commerce solutions, SaaS platforms, and bespoke web applications utilising React, Nextjs and Ruby on Rails to clients across the UK.

Modern Web Apps developed with React and Ruby on Rails

We deliver modern web apps using the latest technologies such as Ruby on Rails with Hotwire, React, Next.js, Gatsby, and more. Our team focuses on maintainability, scalability, and security in every project.
Modern Web Apps developed with React and Ruby on Rails

Progressive Web Apps (PWAs)

The web is a powerful platform. We'll transform your web presence into a progressive web app that works offline, loads quickly, and feels like a native app. PWAs can benefit from features such as push notifications, background sync, and more.
Progressive Web Apps (PWAs)

Ruby on Rails expertise

Add Jam has over 10 years of experience crafting scalable, secure, maintainable, and extensible complex web applications using Ruby on Rails. Whether you're starting a new Ruby on Rails project or need expertise with an existing one, we're here to deliver.
Ruby on Rails expertise

Microservices and Serverless

Beyond Ruby on Rails, we deliver microservices and serverless solutions when your project demands it. We use TypeScript on almost all of our projects and bring extensive experience with AWS Lambda, Google Cloud Functions, and more.
Microservices and Serverless

Web development projects by Add Jam

The modern web is a powerful platform that enables us to deliver responsive websites and web apps that enhance your digital presence and user experience. Add Jam will guide you in developing and deploying web applications utilising the latest technologies such as React, Ruby on Rails, push notifications, WebRTC for video calls, and more.

Simple ASO Keyword Tool - Free ASO Platform

Marketing

Developer Tools

Simple ASO Keyword Tool - Free ASO Platform

We built a free, no-nonsense App Store Optimization tool that helps developers avoid common keyword mistakes and boost their app's visibility. What started as an afternoon project has evolved into a suite of free ASO tools helping app creators worldwide get their apps discovered.

Educational Intelligence: Money Matters

Education

FinTech

Educational Intelligence: Money Matters

How Add Jam partnered with Educational Intelligence to create Money Matters, a digital platform addressing the UK's financial literacy crisis where 12.9 million adults struggle with money management.

Great Glasgow Coffee Run

Fitness

Community

Great Glasgow Coffee Run

Celebrating Glasgow's vibrant coffee culture and running community through an interactive digital experience that maps out the perfect coffee-fuelled running route through the city.

Come Back Soon Tracker

Travel

Come Back Soon Tracker

Save money at Center Parcs with Come Back Soon Tracker. Get alerts if the price of a booking decreases and claim a refund with the Come Back Soon Price Promise.

Attachment Bot

Productivity

Email

Attachment Bot

Attachment Bot was a desktop app that automated finding, saving, and organizing email attachments.

Urban Fox - near home EV charging

Mobility

Electric Vehicles

Urban Fox - near home EV charging

Urban Fox is a UK EV chargepoint operator offering a range of near home & car park charging solutions to make the transition to EVs accessible for all.

Experiential Learning Tools

Education

Experiential Learning Tools

Run online training for remote teams that works. Platform allowing L&D departments to run remote training sessions with lasting impact.

Electric Maze

Education

Electric Maze

Innovative, electronically programmable experiential learning activity. React Native app that interacts with a BLE peripheral on iOS and Android.

Glasgow Subway Crawl: Explore the City's Underground Charm

Tourism

Mobility

Glasgow Subway Crawl: Explore the City's Underground Charm

Discover the ultimate guide to exploring Glasgow using its iconic subway system. Experience all 15 stops in one unforgettable Sub Crawl adventure with our innovative mobile app.

Tough Table Challenge

Sport

Tough Table Challenge

Who will be top of the Tough Table Challenge leaderboard? Unofficial Tough Table Challenge Leaderboard.

Charge Point Sparky

Mobility

Electric Vehicles

Charge Point Sparky

Easily find qualified EV charge point installers in the UK. Our web app simplifies government data into a user-friendly, searchable directory.

Qube Total Solutions

Business Tools

Fintech

Qube Total Solutions

A custom Ruby on Rails app revolutionizing quoting for QTS, the UK's leading wire mesh manufacturer. Streamlined, accurate, and integrated.

CareFit - helping carers stay fit

Health

Education

CareFit - helping carers stay fit

CareFit is a research project with the University of Strathclyde aiming to support as many caregivers as possible with their health and wellbeing.

Community Lab

Community

Social Media

Community Lab

Community Lab is a free innovation and collaboration platform for ecosystem builders. A feature rich web app with posts, events, chat, notifications and activity feeds.

Purple Alert

Health

Community

Purple Alert

A community-driven app by Alzheimer Scotland to support people with dementia. Enables quick alerts and community searches when individuals go missing. iOS and Android.

Myrror

Health

Community

Myrror

Track your beauty treatments safely with Myrror. Developed for iOS and Android to allow people to safely track the progression of their aesthetic procedures such as Botox and fillers.

Rx Tariff

Business Tools

Health

Rx Tariff

Saving healthcare professionals time and money with simple software. Easily usable Scottish drug tariff.

Pocket Leap

Tourism

Mobility

Pocket Leap

A pioneering offline travel companion and guide to the west coast islands of Bute, Cumbrae, and Arran. Though retired in 2025, its legacy continues to inspire.

eBike Scot

Mobility

Health

eBike Scot

Borrow an Electric Bike for free for up to one day at a time. Online platform to book and reserve an ebike in Inverclyde. Making a hilly region more accessible.

Anniversary Urban Walk

Community

Education

Anniversary Urban Walk

Working alongside local school, St Luke's High School, to create a vibrant guide to the town of Barrhead

Profile collage

Business tools

Social media

Profile collage

A lightning-fast Instagram grid design tool that helped social media managers create stunning feed layouts in minutes. Built with React and Ruby on Rails, Profile Collage simplified complex image manipulation

Kara - meditation app

Health

Kara - meditation app

Meeting cancer with mindfulness. Gorgeous web app delivering meditation content to people living with cancer by the Mindfulness Everywhere team.

Glasgow Cycling - Smart City app

Mobility

Tourism

Glasgow Cycling - Smart City app

Making Glasgow a cycle friendly city through open data. Part of the Future City Programme at Glasgow City Council.

Glasgow Walking - Smart City app

Mobility

Tourism

Glasgow Walking - Smart City app

Making Glasgow more active and making heritage information easy to access. Part of the Future City Programme at Glasgow City Council.

RookieOven

Community

RookieOven

Making a more vibrant tech community in Scotland. Blog, meetup and collections of useful resources for Scottish founders.

Frequently Asked Questions

Should I build a web app or a mobile app?
Web apps are easier to release and iterate on - no app store reviews, instant updates and accessible via any browser. Choose web when you need rapid iteration, SEO visibility or when your users primarily work on desktop. Mobile apps are better for heavy native feature usage and consumer engagement.
What is a Progressive Web App (PWA)?
PWAs are web apps that feel like native apps. They work offline, support push notifications, can be installed on home screens and load instantly. PWAs are a great middle ground when you want app-like features without the app store overhead.
Do you build responsive websites?
Yes, all our web development is mobile-first and fully responsive. We ensure your site works beautifully across phones, tablets and desktops using modern CSS and React components.
What's the difference between React and Ruby on Rails?
React is a frontend JavaScript framework for building user interfaces. Ruby on Rails is a backend framework for building server-side applications and APIs. We often use them together - Rails for the backend API and React for the frontend interface.
Can web apps work offline?
Yes, using Progressive Web App (PWA) technologies like Service Workers, web apps can cache data and work offline. We can implement offline functionality, background sync and push notifications for web applications.
How do we get started on a web development project?
Book a free consultation to discuss your requirements. We'll help you understand the best technical approach for your needs. For larger projects, an App Planning Day creates specifications and wireframes before development begins.

We offer a range of services to help ambitious tech projects succeed

Expert React web development in Scotland

Transform your web presence with modern React applications built by our expert team. We specialize in creating fast, responsive, and maintainable React applications that deliver exceptional user experiences and drive business growth.

Technical audits and code reviews

Get an in-depth review of your digital products and infrastructure. Our expert team identifies critical issues in your React Native, Ruby on Rails, and cloud setups, providing tailored recommendations for optimisation and scalability.

Scalable, secure cloud infrastructure

Scalable and secure digital infrastructure to support your business operations. We can help you with cloud, networking, and more across AWS, Azure, Google Cloud Platform

Ruby on Rails development and consulting in Scotland

Expert Ruby on Rails development and consulting services. We help companies build, scale, and maintain Rails applications with our decade of Rails expertise. From new projects to legacy upgrades, we're your Rails partners.

UK based Ruby on Rails and React web development team banner image

Leading Ruby on Rails and React developers based in Scotland, working UK-wide

We take products from an idea to revenue

Add Jam is your plug in team of web and mobile developers, designers and product managers. We work with you to create, ship and scale digital products that people use and love.

Hello, let's chat 👋
michael hayes avatar photo

Michael Hayes

Co-founder of Add Jam

Hey! Co-founder of Add Jam here. I'm available to chat about startups, tech, design, and development. Drop me a message or book a call in my calendar at a time that suits you.