With Jack - Freelance Insurance
With Jack offers peace of mind and protection for UK freelance creatives and SMEs. Friendly, personable and reliable insurance.
Lets talk about your software development project.
The starting point for most projects is just a short chat where we aim to understand your situation and how we can guide you towards success. Alternatively you can jump ahead and book an app planning day with us to get a head start on your project.
Talk to our experienced development team about your software project
If you have any questions about our services, or would like to discuss a project, please get in touch. We aim to respond to all enquiries within an hour. Chat soon.
Based in Scotland, working UK-wide
Whether you're in London, Manchester, Edinburgh or anywhere in the UK, we'd love to chat about your project. We work remotely with clients across the country, and we're always happy to meet in person too.
Frequently Asked Questions
- How long does it take to build a mobile app?
- A typical MVP takes 3-4 months to develop. More complex apps with multiple integrations may take 6+ months. We recommend starting with our App Planning Day to define scope and create realistic timelines for your specific project.
- Do you work with startups or only established companies?
- We work primarily with funded startups and scaleups. Our sweet spot is companies with seed to Series B funding who need experienced technical partners for greenfield builds and MVP development.
- What technologies do you specialise in?
- Our core expertise is React Native for cross-platform mobile apps and Ruby on Rails for web applications. We also work with React, Next.js, TypeScript, and modern cloud infrastructure on AWS, GCP, and Azure.
- Do you provide ongoing support after launch?
- Yes, we offer comprehensive support and maintenance services. This includes bug fixes, security updates, performance optimisation, and feature development to ensure your app continues to perform well after launch.
- Can you help with an existing app that needs improvements?
- Absolutely. We regularly perform code reviews and technical audits of existing React Native and Rails applications. We provide actionable recommendations and can implement improvements or hand off to your team.
- Do you work remotely or only in Scotland?
- We are based in Glasgow but work with clients across the UK and internationally. Most of our work is done remotely with regular video calls and async communication, though we're happy to meet in person when needed.
Recent case studies
Here's a look at some of products we've brought to market recently
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.
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
Your software project is in safe hands
We hold Cyber Essentials Plus certification — the UK government's highest baseline standard for cyber security, verified through independent testing of our systems. It means our infrastructure, devices and access controls are externally audited to protect your project data and intellectual property.
Latest post from the Add Jam blog
Optimising React Native App Performance in 2026February 25th 2026 by Daniel Taylor
Practical React Native performance optimisations we applied to a production app. From taming re-renders and Zustand store writes to batching API data and making maps usable.