App development
We design and build mobile and web applications, including our own consumer products.
Independent UK technology company
Categorical Solutions is a London technology company. We build our own applications and work with companies on software engineering, machine learning, AI and emerging technology.
What we do
Our work spans application development, machine learning, technical consulting and product research.
We design and build mobile and web applications, including our own consumer products.
We develop and advise on machine-learning systems, AI tools and software that uses these technologies in practical applications.
We work with startups and technical companies on software engineering, research-led development and difficult technical problems.
We research new product opportunities and develop promising ideas into prototypes and working applications.
What we’re building
Understand your migraines,
one day at a time.
Migraine 90 is a simple, engaging migraine-tracking app designed to make consistent daily logging easier. Quick check-ins help users record factors such as sleep, hydration, meals, exercise and medication alongside migraine episodes.
Over a 90-day journey, users can explore patterns in their own data—with Milo, our little brain companion, helping to keep the experience approachable and motivating.
Migraine 90 is a personal tracking and insight tool. It does not provide a diagnosis or medical advice.
Selected consulting work
Quantum computing
R&D software engineering for open-source distributed quantum-computing tools, including a Python compiler and high-performance Rust simulator.
View consulting workAbout the company
Categorical Solutions Ltd is a UK technology company focused on designing and building useful digital products.
We work across software development, mobile applications, AI-powered tools and product research, with an emphasis on turning practical ideas into simple, well-designed technology.
Alongside developing our own products, we help businesses with software engineering, research-led development and the practical use of emerging technology.
Contact
Tell us what you’re working on, or ask us about Categorical Solutions and our products.
71-75 Shelton StreetWe’ll get back to you as soon as we can.