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UX Design Agency: Research to Polished UI

Myth Digital is a UX design agency in Belfast and London. Our senior in-house designers run focused user research, map clear interaction flows and validate prototypes before development, so your product works first time. Less rework, faster sign-off.

  • Research reports
  • Validated prototypes
  • UI component library
Talk to our UX teamSee our services
Since 2015 Designing products in-house
300+ Projects delivered to market
Myth Digital team at work in the studio

We are a UX design agency in Belfast that starts with research, not assumptions. Our senior in-house designers define real user problems first, then validate solutions with prototypes before a single pixel reaches development.

Talk to our UX team

Products built on assumptions carry a hidden cost: rework. Features get redesigned mid-build, timelines stretch and budgets follow. The root cause is usually the same. Nobody tested the idea with real users before committing to code.

Our approach flips that. We run focused discovery and research to pin down what users actually need, map clear interaction flows, then build clickable prototypes you can test and sign off. Every milestone produces a tangible artefact. Research findings, flow diagrams, a polished UI component library ready for your build team.

Our designers work in-house across London and Belfast. Feedback loops are short and sign-off is faster.

AlphaVictor
Bushmills
Coca-Cola
Complieye
Elecsys
Glen Dimplex
LifePass
The Lir
NHS
The North Face
Perks
Queen's University
Deep RiverRock
SPAR

What does a UX design agency deliver?

  • Research & Discovery

    Problems defined before solutions start

    We run user interviews, audits and stakeholder sessions to produce a clear problem definition report. You get evidence to guide every decision that follows, not guesswork.

  • Flows & Architecture

    Journeys mapped, structure agreed

    User journeys, task flows and sitemaps give your team a shared picture of how the product works. Gaps and dead ends surface here, not during development.

  • Prototyping & Testing

    Validated before a line of code

    Clickable prototypes replicate key flows so real users can test them. You see what works and what doesn't. Findings are documented for confident sign-off.

Myth Digital team at work in the studio

Why does every UX project start with research?

We open every engagement with structured discovery: stakeholder interviews, user interviews and usability audits. We define measurable KPIs up front. Task completion, conversion, error rates. Then we deliver a signed-off research report so design begins with clarity.

  • Signed-off findings before design begins
  • Measurable KPIs defined up front
  • Fewer surprises, less rework downstream

What You Walk Away With

Every stage produces a signed-off deliverable you can share with stakeholders, test with users and hand to your build team.

Research & Audit Findings
Cactus on a window sill

Research & Audit Findings

A clear picture of what's working, what isn't and where the biggest opportunities sit.

  • Usability audit with prioritised issues and severity ratings
  • User interview and testing insights distilled into actionable themes
  • Competitor and heuristic review highlighting gaps in your current experience
  • A signed-off problem definition your whole team can align around
Validated Clickable Prototypes
Phone showing a meeting room with smart-device pins

Validated Clickable Prototypes

Realistic, device-appropriate prototypes tested with real users before a line of code is written.

  • Clickable flows for web and mobile that replicate core user journeys
  • Tested in moderated sessions so feedback shapes the design, not assumptions
  • Stakeholder sign-off built into the process, reducing surprises later
  • Confidence that what you build is what users actually need
Polished UI & Design System
Two people reviewing a Myth design on a monitor

Polished UI & Design System

Production-ready screens and a component library your developers can build from directly.

  • Typography, colour and spacing scales defined for consistency across every screen
  • Responsive layouts for mobile, tablet and desktop breakpoints
  • Reusable component library that speeds up development and keeps the product consistent
  • Developer-ready handoff with specs, assets and interaction notes
Measured Improvement
Lounge corner with shelving and plants

Measured Improvement

Proof that the new design performs better, backed by data you can share with leadership.

  • Pre and post usability tests comparing task completion, time-on-task and error rates
  • SUS (System Usability Scale) scores giving a standardised satisfaction benchmark
  • Analytics comparison showing real behavioural change after launch
  • A clear before-and-after story for stakeholders and investors
Two developers with a monitor full of design thumbnails and code on a laptop

Clickable prototypes before code

We build interactive, device-appropriate prototypes that replicate key flows so your team and users can tap through screens, test navigation and catch issues before development. Stakeholders sign off on what they can actually use, not a static document. Read more about our prototyping for startups approach.

  • Catch usability problems early
  • Cut development rework
  • Align your whole team faster

Where are you starting from?

AlphaVictor app Make it happen The North Face campaign AI development Newell Stores app Software development Juice Jar app App development MPS Data Discovery to deployment The Lir website In-house UK team

Why choose Myth as your UX design agency?

  • UK-Based

    In-house · No outsourcing

    Our team are entirely UK-based and work in-office, we don't outsource work overseas or hire fully-remote developers.

    • UK Team
    • In-office

  • Experts

    Senior · Experienced

    We're experts in all things software and design. Our team is primarily made up of experienced and senior people.

    • Software
    • Design

  • Trusted

    Since 2015

    We've been designing and developing since 2015 and have delivered a wide range of successful projects to market since then.

    • Proven
    • Delivered

  • Friendly

    Fun · Approachable

    We're a friendly and fun bunch of people. We enjoy what we do and don't make things too corporate. Expect a bit of banter and fun.

    • Personable

  • Transparent

    Honest · No surprises

    From our pricing down to our project management, we're transparent and honest. There won't be any surprises when working with us.

    • Clear pricing

How does a UX design project work?

Every engagement follows clear milestones. You sign off each stage before we move on.

  1. Kick-off and scoping

    We align on business goals, user groups and constraints in person at our London or Belfast office. You leave with a defined scope and agreed success metrics.

  2. Research and discovery

    We run user interviews, audit existing flows and define the core problems. Deliverable: a signed-off research report with prioritised opportunities.

  3. Flows and architecture

    We map user journeys and information architecture so every screen has a clear purpose. Deliverable: documented flow diagrams you can share with stakeholders.

  4. Prototype and test

    We build clickable prototypes and run usability tests with real users. Each round of feedback drives iteration before any visual design begins.

  5. UI design and design system

    We create polished screens and a reusable component library. Deliverable: a complete design system your build team can reference for every future feature.

  6. Handoff and support

    We package developer-ready assets, annotated specs and documentation. Optional ongoing UX support keeps the product consistent as it grows.

UX design work we've delivered

Our UX track record

Designing products people actually use, since 2015

Since 2015
Designing and building digital products
2 offices
UK offices for in-person discovery
100%
All work is in-house
Learn more about us

  • Discovery-first from day one

    Every UX engagement starts with structured research and problem definition. We don't sketch screens until we understand your users, their tasks and where the friction sits.

  • Prototypes that cut rework

    Clickable prototypes let you test flows with real users before a line of code is written. Validated designs mean fewer surprises and less back-and-forth during development.

  • Research across B2B and B2C

    We've run usability testing and user research for consumer apps, SaaS platforms and regulated industries. Each project gets a research approach shaped to its audience and compliance needs.

  • UI systems built for handoff

    Our designers deliver component libraries and design tokens that developers can implement directly. Clean handoff means your build team spends time coding features, not interpreting mockups.

  • Measurable UX improvements

    We define success metrics during discovery, then track task completion, error rates and satisfaction scores. Pre- and post-testing shows exactly what improved and by how much.

  • Same team, start to finish

    The senior designers you meet in discovery are the same people running tests and refining the UI. No handoffs between departments, no offshore subcontracting. Consistent, accountable delivery.

Man and woman in relaxed conversation in the office

Your team works with senior designers

We place senior UX designers and leads across our London and Belfast offices. They join your calls, run workshops and deliver work directly. Faster feedback, fewer misunderstandings, clear accountability throughout.

  • Lead-level UX practitioners on every project
  • Cross-discipline design and research experience
  • Direct client contact, no middlemen
  • Same-timezone collaboration across the UK

Are we the right fit?

A great fit

  • You want research-backed design, not just pretty screens
  • You value validated prototypes before any code is written
  • You need a senior, in-house team rather than a solo freelancer
  • You want transparent milestones with clear deliverables at each stage
  • You're building a product people will actually use

Not the right fit

  • You only need a logo or brand identity
  • You want the cheapest option regardless of quality
  • You've already built everything and just need a visual skin
  • You need a brochure site, not a functional product
  • You're not open to user research shaping the direction

How much does UX design cost?

Every engagement starts with a discovery call. Choose the scope that fits where you are right now.

  • Typically 4–6 weeks

    Discovery & Prototype

    Get in touch

    Ideal if you need validated direction before committing to a full build. We define the problem, map user flows and deliver a tested prototype you can share with stakeholders.

    • User research and problem definition
    • User flows and wireframes
    • Clickable, device-appropriate prototype
    • Moderated usability test
    • Findings report with prioritised recommendations
  • Typically 8–14 weeks

    Full UX & UI

    Get in touch

    End-to-end design from research through to developer-ready assets. You get everything in Discovery & Prototype, plus polished screens and a component library your build team can use immediately.

    • Everything in Discovery & Prototype
    • Polished UI screens for all key flows
    • Design system and component library
    • Developer handoff documentation
    • Post-launch usability review

Timelines are typical and depend on product complexity. We'll confirm scope and schedule after discovery.

Myth Digital team at work in the studio design session
FAQ

UX design agency FAQs

What's the difference between UX and UI?

UX (user experience) is the research, structure and logic behind how a product works: user flows, information architecture and interaction patterns. UI (user interface) is the visual layer: typography, colour, spacing and components. We deliver both as part of every engagement, because one without the other leaves gaps.

Can you redesign an existing product or only new ones?

Both. We regularly take on redesign projects for products that have outgrown their original interface or are seeing poor adoption. We start with a discovery phase to understand what's working, what isn't and where users are struggling, then redesign from that evidence base.

How do you measure the success of AI implementations you recommend?

Every recommendation includes specific, measurable KPIs tied to business outcomes (cost reduction, efficiency gains, revenue impact). We establish baseline measurements during assessment to enable clear before/after comparisons.

Do you build interactive prototypes for user testing?

Yes. We deliver clickable, device-appropriate prototypes that replicate key user flows. These let you run real usability tests and get stakeholder sign-off before development starts, reducing rework and giving your build team a clear reference point.

What industries do you design for?

We work across B2B and B2C products in both regulated and consumer markets. Our team aligns research methods and any compliance requirements to each sector during discovery, so the process fits your industry rather than following a one-size template.

How long does it take?

This is a lightweight audit. We keep it to 30 minutes, which is more than enough time to have a look and give you some suggestions and a mini-report.

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