Fintech
Education
With Jack - Freelance Insurance
With Jack offers peace of mind and protection for UK freelance creatives and SMEs. Friendly, personable and reliable insurance.
Technical audits and code reviews
With hundreds of mobile and web apps under our belt, we've honed our expertise in what drives success. Let our seasoned professionals analyse your codebase, assess your current position, and craft a strategic improvement plan to unlock unprecedented growth and scale. Our technical audits cover React Native, Ruby on Rails, and infrastructure appraisals.
React Native code review and consulting
As one of Scotland's most experienced React Native teams, with production app expertise since 2015, we deliver unparalleled React Native consulting and code review services. Our audit identifies critical issues, provides actionable recommendations, and ensures your product remains secure, performant, and scalable across iOS and Android platforms.
Infrastructure audit and appraisal
Our comprehensive infrastructure audit scrutinises your technical setup and digital infrastructure. We identify inefficiencies, security vulnerabilities, and areas for improvement. This appraisal often results in significant cost savings by optimising cloud spend and streamlining your tech stack for maximum efficiency.
Ruby on Rails code review
Leveraging over a decade of Ruby on Rails expertise, our code reviews dive deep into your Rails application. We uncover hidden issues, suggest best practices, and provide a roadmap for improvements. Our recommendations focus on enhancing security, performance, and scalability to support your application's growth.
Code reviews and audits projects by Add Jam
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.
Healthcare
Social Impact
PEM Diary - ME/CFS Crash Log
PEM Diary is a React Native mobile app designed to help individuals with ME/CFS track and document PEM episodes. Built from personal experience, this app serves as a handy tool to understand your condition
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.
Travel
Come Back Soon Tracker
Come Back Soon Tracker was a service that helped Center Parcs guests save money by monitoring booking prices. The service helped holiday makers save hundreds of pounds before being discontinued in 2025.
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.
Tourism
Mobility
Glasgow Park Walk
Our app to discover Glasgow's beautiful parks with ease. Available on iOS and Android and translated into multiple languages. Offline with rich media content.
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.
Education
Electric Maze
Innovative, electronically programmable experiential learning activity. React Native app that interacts with a BLE peripheral on iOS and Android.
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.
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.
Property
Property Tracker - companion app for home hunters
Privacy-focused mobile app for UK house buyers and renters to easily bookmark property listings and help understand the market.
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.
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
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.
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.
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.
Community
Health
Kapa - Chat app for sports clubs
Where your sports club lives. Real time chat app for sports clubs and societies on iOS, Android and the Web.
Business Tools
Health
Rx Tariff
Saving healthcare professionals time and money with simple software. Easily usable Scottish drug tariff.
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.
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.
Community
Education
Anniversary Urban Walk
Working alongside local school, St Luke's High School, to create a vibrant guide to the town of Barrhead
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
Game
LoL 2048
A League of Legends themed clone of the viral hit 2048. Enjoyed by millions of people all over the world.
Health
Kara - meditation app
Meeting cancer with mindfulness. Gorgeous web app delivering meditation content to people living with cancer by the Mindfulness Everywhere team.
Health
Meditation Now - meditation app
Taking mindfulness everywhere. A multilingual mindfulness app by Mindfulness Everywhere. Experience guided meditations in multiple languages, breaking barriers to global wellness.
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.
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.
Frequently Asked Questions
- Why should I get a code review?
- Code reviews identify security vulnerabilities, performance bottlenecks, technical debt and maintainability issues before they become expensive problems. They're essential before fundraising, acquisitions or when inheriting a codebase from another team.
- How long does a code review take?
- A typical code review takes 2-5 days depending on the size and complexity of your codebase. We provide a detailed report with prioritised recommendations and can discuss findings in a follow-up call.
- How much does a code review cost?
- Code reviews typically range from £750 to £2,000 depending on scope. A focused review of a single application is at the lower end, while comprehensive audits covering multiple codebases and infrastructure are higher.
- What do you look for in a code review?
- We assess security vulnerabilities, code quality and maintainability, performance issues, architecture decisions, test coverage, dependency health and alignment with best practices for your technology stack.
- What happens after the code review?
- You receive a detailed report with findings prioritised by severity and impact. We can then help implement the recommendations, or your team can address them using our report as a roadmap.
- How do we get started with a code review?
- Book a consultation to discuss what you want to achieve. We'll need access to your codebase (we can sign NDAs) and any context about known issues or concerns. From there, we'll provide a quote and timeline for the review.
We offer a range of services to help ambitious tech projects succeed
- 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.
- Flexible, experienced Fractional CTO →
Add Jam offers experienced Fractional CTO services. Add technical leadership without the full-time commitment or cost of a full-time CTO. Our UK-based Fractional CTO service provides startups with strategic technical leadership, helping you make informed technology decisions and scale effectively. Add Jam are based in Scotland but serving clients across the UK.
- Mobile app development in the UK →
We deliver mobile apps that offer a brilliant user experience whilst being reliable, accessible and secure. Our plug in team of expert mobile app developers will guide you in shipping iOS and Android apps utilising the latest technologies and best practices. React Native cross platform and fully native apps.
- Technical support for web and mobile apps →
Ensure the continuous performance and reliability of your digital products with our expert support services. We offer dedicated assistance for React web apps, React Native, Swift, and Kotlin mobile apps, as well as Ruby on Rails applications.
Book a comprehensive code review