UI and UX Agency Services
We reject the trade-off between form and function. Our UI/UX design is rooted in user behaviour, shaped by data, and refined until it’s both something users love and something that converts.
Our Approach to UI/UX Design
Great design shouldn’t come at the cost of performance, and strong conversion rates shouldn’t come at the cost of experience. We start with your users: their behaviours, motivations, and pain points. Every design decision is informed by research, validated through testing, and refined through iteration until it works as well as it looks.
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Modo25 is an award-winning conversion rate optimisation agency that turns your existing traffic into more customers. Through rigorous testing, user research, and data-driven design, we maximise the value of every visitor to your website.
01
User Research & Audit
We analyse existing user behaviour data, heatmaps, session recordings, and research to understand how your current design is performing and where the biggest friction points lie.
02
UX Strategy & Wireframing
We map out the optimal user journey before a single pixel is designed, defining information architecture, interaction patterns, and conversion flows that work for real users.
03
UI Design & Prototyping
High-fidelity designs built on your brand foundations, crafted to be beautiful, accessible, and conversion-focused. Prototypes are tested with real users before development begins.
04
Test, Measure & Iterate
Every design change goes through our experimentation framework. We measure impact against your conversion goals and iterate continuously, because great design is never finished.
CRO Services We Provide
From foundational UX audits to full interface redesigns, our design services cover every touchpoint of your digital experience.
Quantitative & Qualitative Analysis
The full picture. We combine behavioural data with user insights,from analytics deep-dives to session recordings and surveys to show you exactly where your funnel is losing conversions.
User Testing
Your users know exactly what’s wrong with your digital experience, they just can’t tell you directly. Our moderated and unmoderated testing sessions translate real user behaviour into clear, actionable opportunities for improvement.
A/B Testing
No gut feelings. No assumptions. Every change tested, every result measured, every update backed by statistical evidence before full rollout.
Landing Page Optimisation
We design landing pages with conversion as the brief, not an afterthought. Every page is purpose-built from initial concept, then continuously tested and refined — compounding performance gains long after launch.
CRO Services
We offer end to end cro service management at Modo25. Find out our process, management and delivery to achieve results of up to 17% uplift in your conversion rate after 12 months.
CRO clients We've Worked With
Why Choose Modo25 for Your CRO Agency in Leeds
Transparent CRO Reporting
You shouldn’t have to chase your agency for answers. Our reports give you full visibility of every optimisation effort segmented conversion rates, test results held to statistical significance, revenue attribution, and behaviour changes, with plain-English explanations of what worked, what didn’t, and what comes next.
Bespoke Training
Skills that stay in-house. We train your team in experimentation methodology, user research, and how to build an optimisation culture that keeps improving long after we’re gone.
15+ Years of Digital Experience
Hundreds of websites optimised across e-commerce, lead generation, and SaaS. Our specialists bring hard-won, cross-industry expertise to every engagement, not theories, but patterns proven through years of real experimentation and measurable results.
CRO Agency Case Studies
All customer stories
CRO Services FAQs
What's the difference between UI design and UX design?
UX (user experience) design is concerned with the overall feel of a product, how intuitive it is, how efficiently users can complete tasks, and how frictionless the journey feels. UI (user interface) design is concerned with the visual layer,typography, colour, layout, and interaction states. In practice, great digital products require both working together, which is why we treat them as a single, integrated discipline rather than separate workstreams.
How do you make sure design changes actually improve conversion?
Every significant design change we implement is validated through A/B testing before full rollout. We measure impact against a defined set of conversion metrics, agreed with you at the start of the engagement, including conversion rate, task completion, bounce rate, and revenue per visitor. That means every design decision is backed by statistical evidence, not creative opinion.
Do you work within our existing brand guidelines?
Yes. We work within your existing brand identity as standard. Adapting and evolving it for digital performance rather than replacing it. If your guidelines need updating to better support digital execution, we’ll advise on that as part of the engagement. Where no formal guidelines exist, we’ll help establish a scalable design system from the ground up.
Can you redesign part of our website, or does it need to be a full rebuild?
A targeted, data-led approach is often more effective than a full site rebuild. We identify the pages and flows with the highest conversion impact, redesign and test those first, then expand from there. It means faster wins, lower risk, and a design programme that pays for itself as it goes — rather than requiring a large upfront investment before a single result is seen.
CRO Insights
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UX vs UI: What is the difference and why does it matter for your website?
Contact Us Today to Take Your
CRO Performance to the Next Level
Our dedicated CRO specialists combine UX expertise with analytical rigour to drive meaningful conversion improvements.