01 Step
Understand & Analyse
Design
Design: web design, brand identity, UI/UX and prototypes
One team that designs the work and builds it: web design, brand identity and logo, UI/UX and clickable prototypes. No mockup thrown over a wall, but design that is genuinely buildable and tied to conversion.
- Design and build from one team
- Design tied to conversion
- You keep the source files
In short
With TopDevs, design runs as one track with the build: web design, brand identity and logo, UI/UX and clickable prototypes. Because the same team designs and builds it, the design is always genuinely buildable and tied to what you want to achieve, not a picture that breaks against the tech. We work in Figma and turn it into React, Astro or Flutter.
What gets in the way
At most agencies, design is a separate phase with a separate party. One outfit hands over a pretty mockup, another has to build it, and what is left is a design that does not quite hold up in practice: animations that cannot be done, a layout that breaks on mobile, a button that leads nowhere. We do it from one hand. The same team that makes the design also builds it, so from the first sketch the design is already tested against what is technically possible and against what you want to achieve. For De Bungelaer that meant a trilingual luxury site where design and conversion carry equal weight. For Quantum Life a dark, energetic app identity we built straight into Flutter. With us, design is not a picture handed over a wall, it is the design of a product that is actually going to run.
The design is beautiful, but not buildable
A design agency hands over a picture, the developer has to make it real, and halfway through it turns out the animation cannot be done or the layout breaks on mobile. With us the same team tests the design against the tech while it is being made, so what you see is what gets built.
Design for design's sake, not for the goal
A site that looks gorgeous but does not move visitors to book or buy is pretty and nothing more. For De Bungelaer design and conversion carried equal weight: the atmosphere sells, but the booking CTAs are always in view.
A logo without the rest of it
You get a logo and a colour, and after that you have to figure out for yourself how that looks on a button, a form or a whole app. We carry the brand through into the screens and components, so it feels the same everywhere.
The source files stay with the agency
Just like with code, a lot of agencies hold the design files back, so you have to come back for every change. With us you get the Figma files and the design tokens, so you can carry on yourself or with another team.
Our services
What we build for you
Design systems and component libraries
A separate design per screen does not hold up once a product grows. That is when you want a design system: reusable components, fixed tokens for colour and typography, and rules that keep every new screen consistent on their own. So the design keeps holding up, even as the team grows and the product gains more screens.
- Components and tokens as the base — We set buttons, cards, forms and typography as reusable components with tokens underneath, so a change in one place carries through everywhere. For Quantum Life that gave a component-based build that carried the dark app identity consistently across every screen.
- One visual base, configurable per client — At Simply there is a configurable back office where account managers give each client its own setup, on one shared visual base, without a designer or developer involved. The system holds the consistency while the content differs per client.
From design to development
This is where we are different. On most projects one party designs and another builds, with a handover in between where things get lost: an animation that cannot be done, spacing that is just off, an interaction that turns out different in code. With us the same team designs and builds, so there is no gap between mockup and working product.
- Design already tested against the tech — Because the same people build it, we already know during the design what is possible and what is not. For Quantum Life we designed the app UI with the Quantum Movie creator and marketplace, then built it natively in Flutter for iOS and Android, with no gap between design and tech.
- One party responsible for look and function — For De Bungelaer we made and built the whole site: the luxury branding, the trilingual structure and the booking integrations with RoomRaccoon and Zenchef, made to feel like a natural part of the site. One team holding both the look and the working in hand.
Design that converts
Beautiful is not enough. A design has to lead the visitor somewhere: book, buy, request a call. We design from that goal, so atmosphere and conversion pull together instead of competing. The design is tied to an outcome, not just to a look.
- Atmosphere that leads the visitor to the action — For De Bungelaer design and conversion carried equal weight: the deep blue and gold branding sells the feeling, but the booking CTAs for rooms and restaurant are always in view. The design conveys the location and lets the visitor book without friction.
- A site that sells the proposition fast — The Quantum Life marketing site explains what the product does fast in a dark, energetic style and converts: over €100,000 in annual-subscription revenue on launch day alone, with a commercial flow that sets monthly, annual and lifetime plans side by side.
Proof
Real projects, real results
Software we have shipped and can name.
De Bungelaer
Hospitality / Hotel & restaurant
A bespoke luxury hospitality site in three languages, with room and restaurant booking built straight into the experience.
NL · EN · DE
Languages
Rooms + restaurant
Bookings
Quantum Life
Wellness / Meditation app
A cross-platform meditation app with a Quantum Movie creator, a class marketplace and a matching web portal.
10,000+ daily
Peak users
€100k+ revenue
Launch day
GameChef
Game development / AI SaaS
A browser-based, AI-powered game engine with a visual editor and code, art and sound tooling.
Days, not weeks
Build time
Code · Art · Sound
Channels
Simply
Recruitment SaaS
An AI recruitment suite, a native Salesforce app, a secure back-office and a marketing site. The full Simply stack, built end to end.
4-6 hrs/week
Recruiter time saved
Native Salesforce (Apex)
Integration
Peters Bouwadvies
Building inspection / Construction
Tablet-first inspection software that captures findings on-site and turns them into .docx advisory reports and invoices.
Tablet-first
Device
.docx reports
Output
Mastone
Real estate
From spreadsheet to a full real-estate platform with WWS scoring and an investor portal.
100+ rules
Complexity
Full platform
Type
Faster Delivery. Fixed price. Forever your code.
Traditional agencies make software feel risky. Topdevs makes the project clear before we build.
Timeline
Uncertainty & missed deadlines Prototypes in days, finished in weeks
Costs
Open-ended hourly billing Fixed price, always transparent
Communication
Complex tech jargon Simply explained, better informed
Maintenance
Unable to leave current provider Hosting optional, ownership guaranteed
Tech stack
Often outdated and legacy Always modern, AI-native & secure
The Topdevs formula for success
Every project runs through the same four stages, so you always know what’s happening, what’s next, and what it costs.
02 Step
Blueprint & Quote
03 Step
Build, Test & Deploy
04 Step
Implement & Optimise
From first call to live software, usually in weeks not months
We help our clients stay on top by integrating tools such as:
Our promise
Your software stays yours
- Full code ownership The full source code is and stays yours, documented and ready to hand over.
- No vendor lock-in Stop working with us and your system keeps running. Any developer can pick it up.
- Fixed price up front You get a no-obligation blueprint and quote up front: no open-ended billing and no surprises afterwards.
- Security in every layer We build security-by-design, with a specialist in-house.
Frequently asked questions
What does web design or design cost?
It depends on the scope: a brand identity and logo is a different thing from a full app UI with a design system. We agree the price up front, before we start, so there is no open end. Because the same team also builds it, you do not pay twice for a design that has to be rebuilt later anyway. Want a ballpark for your idea? Book a call and we will work it out for you.
Do you also build the design, or do you only deliver the design?
Both are possible, but our strength is that we do both. The same team that makes the design also builds it in React, Astro or Flutter. That means the design is tested against what is technically possible from the first sketch, and there is no gap left between mockup and working product. We designed and built all of Quantum Life ourselves, from app to web portal.
Do I get the design files in my own hands?
Yes. Just like with the code, we do not hold the design files behind lock and key. You get the Figma files and, if there is a design system, the tokens and components. So you can carry on yourself or with another team, without having to come back to us for every small change.
How long does a design project take?
A brand identity or a few screens is a matter of weeks; a full app UI with a clickable prototype and design system takes longer. We work in short rounds with wireframes and prototypes, so you see and click the design early and adjust before the build starts. The exact timeline depends on scope, which we agree up front.
Do you do branding from scratch or also a refresh?
Both. We build a brand identity and logo from the ground up if you have nothing yet, or we refresh an existing identity and carry it through consistently into your site and product. For De Bungelaer we worked within their luxury branding of deep blue and gold; in other projects we set up the visual language entirely from new.
Do you take accessibility into account?
Yes. We design with enough contrast, readable typography, clear focus states and a structure that also works with keyboard and screen reader. Because the same team designs and builds it, that accessibility does not stay a good intention in the design, it actually lands in the code.
Ready to build?
Book a no-obligation call — we'd love to think through the best approach with you.
Book a call