/
&
Pixel-perfect UI
Conversion-focused UX
Clean handoff to developers
Split Development is a UI/UX design agency delivering user research, wireframing, interaction design, prototyping and design systems for SaaS products, web applications, mobile apps and marketing websites. We work with startups, scale-ups and enterprise teams across the US, UK and globally who need a professional UX and UI design agency they can trust.
150+
Projects delivered
10+
Years experience
/01
UX research, strategy & information architecture
/02
UI design, design systems & interactive prototypes
/03
Mobile app UI/UX, product redesign & CRO
Good UI/UX design is not decoration.
As a professional UI/UX design agency, we solve real user problems — reducing friction, improving clarity and making products easier to use and harder to leave.
Research before pixels
We understand your users, their goals and their pain points before designing anything — because good UI/UX starts with knowing who you are designing for.
Design connected to development
As a UI/UX and website design agency with in-house development capability, we design with implementation in mind — so nothing gets lost between Figma and the browser.
Structured, collaborative process
You are involved at every stage — from research and wireframes through to final UI — with clear review points, structured feedback rounds and full visibility into every decision.
Scalable design systems
We build design systems that grow with your product — consistent components, documented patterns and token-based theming that keeps future work fast and coherent.
Our UI/UX design standards protect usability, accessibility, consistency and the quality of every interaction we design
User-centred design
Every design decision is grounded in user needs, not aesthetic preference. We validate assumptions with research and testing throughout the process.
Accessibility by default
Colour contrast, focus states, screen reader compatibility and keyboard navigation are built into our UI design process from day one, not bolted on at the end.
Consistency across every screen
We design with a component-first approach so every screen, state and interaction feels like it belongs to the same product — not a patchwork of one-off decisions.
Developer-ready handoff
All UI design is delivered in Figma with annotated specs, component documentation, token references and asset exports ready for the development team.
Iterative improvement
After launch we support ongoing UX improvements, A/B testing, usability reviews and design iterations as your product evolves and your user base grows.
A structured UI/UX design process from research and discovery through to delivery and iterative improvement
01
Research & discovery
User research, competitor analysis, UX audit, stakeholder interviews and problem definition
02
IA & wireframes
Information architecture, user flows, journey maps and low-fidelity wireframes for validation
03
UI design & prototype
High-fidelity UI design, design system, component library and interactive prototype for sign-off
04
Handoff & build
Developer handoff with annotated specs, assets and component documentation — or full build by our development team
05
Test & iterate
Usability testing, analytics review, A/B testing and iterative UX improvements based on real user behaviour
We partner with product teams, startups and enterprises that need a UI/UX design agency with real depth — not surface-level aesthetics
SaaS & product teams
SaaS UI/UX design agency services for product teams that need UX strategy, design systems and UI design for dashboards, onboarding flows and complex web applications
Startups & scale-ups
Startup UI/UX design agency services for early-stage and growth-stage companies building digital products and needing rapid, high-quality design output
Mobile app teams
Mobile app UI/UX design agency services for iOS and Android products — from initial concept and user flows through to production-ready, platform-native UI
Enterprise organisations
Enterprise UI/UX design for large organisations needing complex design systems, cross-platform consistency and UX strategy across multiple digital products
A UI/UX design agency specialises in user interface and user experience design for digital products — including web applications, SaaS platforms, mobile apps and marketing websites. The work covers user research, information architecture, wireframing, visual UI design, prototyping, design systems and usability testing.
UX (user experience) design focuses on how a product works — the structure, flows, logic and overall experience from a user’s perspective. UI (user interface) design focuses on how it looks — the visual components, typography, colour, spacing and interaction states. Both disciplines work together closely and at Split Development we handle them as a unified process.
Yes. We are a SaaS UI/UX design agency working with product teams at all stages — from early-stage startups defining their MVP experience through to established SaaS companies redesigning dashboards, improving onboarding flows or building out a comprehensive design system.
Yes. We provide mobile app UI/UX design agency services for iOS and Android — covering user research, UX flows, high-fidelity UI design and interactive prototypes built to platform guidelines and optimised for real device behaviour.
We primarily work in Figma for wireframing, high-fidelity UI design, prototyping and design system documentation. Figma enables real-time collaboration, structured component libraries and developer-ready handoff with annotated specs and asset exports.
Yes. We conduct UX audits and product redesigns for existing web applications, SaaS platforms and mobile apps. This includes heuristic evaluation, user flow analysis, UI refresh and design system creation — with a phased approach that minimises disruption to your development team and existing users.
