Product UI Design

We craft interfaces that align with your vision and prioritise the needs of your end-users

Product UI Design

Product UI design is where functionality meets beauty. It’s the art of transforming structural wireframes and user flows into interfaces that captivate, guide, and elevate the user experience. More than just visuals, great UI is the bridge between your brand and your audience, bringing your product’s identity to life in a way that feels intuitive and impactful.

A well-designed interface is done by creating an experience that feels effortless. Clean layouts direct users through their journey with clarity. Consistent colours, interactions, and motion create familiarity and delight. Every detail, from button animations to micro-interactions, plays a role in shaping how users feel and what they do.

But UI design is also an opportunity to showcase your brand in its most expressive form. It’s where your product’s voice becomes visible — immersing users in your world while ensuring their goals are met seamlessly.

At Lumi, we bring precision and creativity to every pixel. We know when to dial up the brand personality to make an impact and when to play things back for simplicity and function. The results are scalable, responsive design systems that are as flexible as your product’s needs.

Product Design
Mobile product design
SAAS
Web App Design
Website design
Marketing design
Pitch deck design
Metrics-driven design
Visual Identity and Branding
Design systems
Illustration

We offer highly tailored design services for unique startup needs and stages. Chat with us to learn how we can help.

Didit restaurant payment app design

Working with Vuoly to launch a worldwide platform and grow globally

Startup:
Vuoly
Didit restaurant payment app design

Translating complex technology into an intuitive platform

Startup:
MapMortar
Didit restaurant payment app design

Optimising for recurring use and conversions

Startup:
FYTA
Didit restaurant payment app design

Growing Average Customer Value (ACV) by 400%

Startup:
Orbiit (acq. by Hivebrite)
Lumi focused on identifying our true pain points and delivering targeted product improvements that made a real impact. They wasted no time on generic frameworks and spray & pray strategies we've seen from other product partners. They rolled up their sleeves and delivered!
Bilyana Freye
CEO, Orbiit
Testimonial video from Rapidream CEO Yedid Herskovitz
Testimonial video from Rapidream CEO Yedid Herskovitz
Lumi didn’t just build a platform. They brought insights from their experience, gave valuable feedback, and even made suggestions that I hadn’t considered. Their knowledge of user experience and customer journeys was invaluable.
Lumi is more than a partner — they’re a part of our team
José Vilches
CEO, Vuoly
Testimonial video from Rapidream CEO Yedid Herskovitz
Testimonial video from Rapidream CEO Yedid Herskovitz
Lumi just really understands how startups work. They have that ability to think big but then also make it feasible – they’re really talented at turning what you’re thinking into full-on concepts, which is so valuable.
Josephine Bromley
COO, MapMortar
Testimonial video from Rapidream CEO Yedid Herskovitz
Nicolo Luti founder of DiscoEat
In a surprisingly short amount of time, Lumi takes your ideas and turns them into a physical thing. It wasn’t just articulating and illustrating it - they reimagined our product. Our team was left with a new-found belief that we have something we can successfully take to the market.
Tom de Vall
Co-Founder, Iungo Solutions
Testimonial video from Rapidream CEO Yedid Herskovitz
Nicolo Luti founder of DiscoEat
Lumi redesigned our App to reduce friction, reduce complexity and enhance the customer experience. Lumi actually over-delivered on their tasks and still met the timeline. The project was extremely well-structured and managed. It was the best experience we've had working with an external team.
Claudia Nassif
Co-Founder & CEO, FYTA
Testimonial video from Rapidream CEO Yedid Herskovitz
Nicolo Luti founder of DiscoEat
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Intro call
🤝
Scoping deep dive
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First project

Let’s talk about your product

Meet one of our senior product leads (we don’t have salespeople) for a casual 30-minute chat to explore how we can help and see if we’re a good fit