20+ years in UX. £200k+ invested in AI products I've designed, built and shipped in the past 12 months. One secured £100k in pre-seed funding and is now raising £250k at a £2.5M valuation. No Figma handoff. You get a live, working product.
Better with email? kris@zwartifydesign.com
discovery+
It's The Ship
Grand Design Kitchens

AI voice design assistant for a UK kitchen & bedroom brand – 39+ voice tools, quotes & designs spoken out loud.

Live music collaboration network – musicians jamming across distance with a native macOS low-latency app.

AI startup validation platform (co-founder & CTO) – AI scoring across 25+ dimensions, Stripe payments live (£99–£695).
Open-source agent framework on the Claude API – agents that create agents from plain English. MIT-licensed.
AI conversations with loved ones – preserving memories, voices and personality for the people who matter.
A marketplace flipped – AI agents compete to hire irreplaceable human skills. Empathy. Presence. Intuition.
The machine that dreams your memories – an experimental voice-led build exploring machine dreaming.
Subscription design agencies deliver beautiful files, then leave you to hire developers. I close that gap entirely – because I'm both sides of it.
A typical design studio
Zwartify
| What you get | Design subscription | Lovable-only shop | Traditional agency | Zwartify |
|---|---|---|---|---|
| Deployed, working product | ✕ files only | ✓ | ✓ | ✓ live URL |
| Voice AI & real-time systems | ✕ | ✕ | $$$ if at all | ✓ in production |
| Backend portability | – | ✕ locked in | ✓ | ✓ switch anytime |
| Senior on your work | varies | varies | juniors, usually | always me · 20 yrs |
| Typical timeline | per-asset | 2 weeks | 3–6 months | 2 weeks |
| Entry price | $4,995/mo | $9,500 | $50k+ | $8,900 fixed |
Twenty years of design taught me what to build. AI finally lets one person build all of it. That's the whole pitch.
Voice agents, AI assistants, agentic tools, marketplaces – taken from idea to a deployed product your first users can actually touch. Not a prototype. Not a deck.
High-converting sites designed, written and built – findable by humans on Google and by AI assistants answering "who should I hire?"
Give your product a voice – assistants with real tools, human-in-the-loop confirmations, and agentic workflows that actually do work.
When customers ask ChatGPT, Claude or Perplexity "who's the best…?" – make sure the answer is you. An 18-task repeatable engine.
A fractional design-engineer-CTO hybrid inside your company – shipping continuously while you focus on customers and capital.
Tell me the idea. Within 48 hours you get a fixed price, a scope document, and a launch date – or an honest "you don't need me for this."
Fixed quote in 48hYou get a live staging URL from week one and a short Loom update every few days. No big reveal, no surprises – you watch it become real.
Staging URL from week 1Deployed on your accounts, documented, monitored. Then a month of iteration on real user behaviour – because v1 is the start, not the end.
1 month iteration includedRequest anything – it all ships from one pair of hands
Not case studies about the work – the work itself. Every card opens a live product designed and built end-to-end.
Kris's ability to turn ideas into reality is remarkable. He took the time to understand our vision and created a beautiful website that exceeded our expectations. Professional, communicative, and a strong work ethic throughout.
What drives my professional satisfaction is his genuine curiosity and ability to develop a working knowledge of the business and synthesise it into well-informed designs. His foresight with new technologies and emerging opportunities is what I truly admire.
Completed well within the timeframe with a professional look. He has always been available when I needed amendments or updates – I'd recommend him to anyone wanting a website or bespoke professional design package.
He did such an incredible job. Very easy to communicate with through the entire process, addressed every edit quickly, and made my vision come alive exactly how I envisioned it.
One of those rare people who combines creativity with real follow-through… not just experimenting with ideas but building thoughtful, serious products with real impact. In short, he is exactly the kind of person you would want to invest in and trust.
Not screenshots of dashboards – the actual moment that matters: an AI naming a client by name. Your niche is next.
Fixed-scope or ongoing – one senior person doing the work means no account managers, no juniors, no agency arithmetic.
A website or landing page that converts – designed, written, built and visible to AI search.
Your AI product idea, live and deployed in 14 days – not a prototype, not a deck.
Ongoing design + build capacity inside your company. Pause or cancel monthly.
★ Founding rate – locked for lifeOne hour, live or async – I review your product or website and give direct UX, conversion, AI-readiness and GEO recommendations you can act on the same day. Fully credited back if you book a build within 30 days.
Not sure which fits? Email me the idea – I'll tell you honestly what it needs, including if it's less than you think.
No sales call needed to know the number. Pick what you need – the quote updates live, then send it to me in one click.
I'm Kristian Zwart – a UK-born, Kuala Lumpur-based, X-shaped designer: deep in UX/UI, wide across web, SEO and digital marketing. Two decades doing UX for brands like Discovery+, MoneyHero and SingSaver – then I rebuilt the entire job around AI.
The track record is concrete: I co-designed an award-winning SEO platform with $1M+ in revenue, built a ticketing system that generated millions in sales, was embedded inside Designit to learn agency craft firsthand, and have presented UX methodology at Microsoft Kuala Lumpur.
Today I run Zwartify as a one-person AI product studio and serve as co-founder & CTO of WhizzBangIdea. That founder seat matters: products I've built have raised £100k at a ~£2.5M valuation, and unlocked $75K+ in AWS & Redis infrastructure credits – every recommendation is stress-tested against real users, real bills and real investors.
Solo by default, never under-resourced: for larger builds I bring in trusted specialist designers and engineers from my network – but I'm always your single point of contact and the quality bar every deliverable passes through.
The KL timezone means I overlap with Asia in the morning and Europe in the afternoon – your work moves while you sleep.
Everything I've learned shipping AI products solo, written down. Three field manuals, free, no email gate – take them, use them, share them.
📚 The Zwartify Playbook Series – 3 free editions · 47 pages · more on the way ⌘ New · The Prompt Vault16 field-tested prompts from my daily workflow – build, design, GEO & voice. Click-to-copy, free forever. Open the vault →The 18-task engine that put my clients at #1 across six AI platforms when customers ask ChatGPT or Claude "who should I hire?"
Download the free edition (PDF) ↓7,712 edits of vibe-coding lessons – what Lovable is brilliant at, where it breaks, and how to take a generated app to production quality.
Download the free edition (PDF) ↓Twelve principles from twenty years of UX/UI – Discovery+, SingSaver, a $1M SaaS – plus the six checks I run before any page ships.
Download the free edition (PDF) ↓
No forms, no gatekeeping. Email lands directly with me and I reply personally, usually same day (KL time).
Kuala Lumpur · --:-- Email me directlyor
Book a 15-min callBecause the job changed. I direct an AI-native build stack – Claude, agentic coding tools, modern backends like Convex – the way a director runs a film crew. Twenty years of design judgement decides what gets built; the tooling collapses how long it takes. The proof isn't the claim – it's the row of live products at the top of this page.
Solo by default – that's what keeps quality high and prices honest. When a build needs more hands (illustration, motion, extra engineering), I bring in trusted specialist designers and developers from my own network. You never manage them, brief them, or even meet them unless you want to: I stay your single point of contact, and everything ships through my quality bar.
They deliver design files and a "dev-ready handoff." I deliver the deployed product. If you already have engineers, I'll happily work design-only – but most clients come to me precisely because they don't want to assemble a second team to make the designs real.
Yes – I'm a Lovable Builders Club member and use it where it's the right tool, alongside Claude, Cursor, Convex and traditional engineering. The difference between me and a pure Lovable shop: 20 years of UX judgement deciding what gets built, plus real backend and voice engineering when your product needs more than a generated CRUD app. AI speed, senior standards.
You do. Repositories, hosting, domains and AI provider accounts are set up in your name from day one. I build in the open, document as I go, and you can walk away with everything at any point.
Then I'll say so. Plenty of great products need a sharp website and clean UX, not a language model. The Launch Site plan exists for exactly that – and I'll never bolt AI onto something to justify a bigger invoice.
The 2-week MVP Sprint is 50% to start, 50% at launch. Larger fixed-scope builds are 50/25/25 (start / midpoint / launch). The Product Partner plan bills monthly in advance and you can pause or stop with a week's notice. Invoicing via ZwartifyDesign Sdn Bhd (Malaysia), in USD, GBP or MYR.
Billing runs on a 31-day cycle, and unused days bank. Use 21 days, pause, and the remaining 10 days wait for you – resume whenever, months later if you like. No wasted spend, no awkward conversations. And the week-one guarantee means the first seven days are genuinely risk-free: if it's not working, you get 75% back, no questions asked.
Yes – honesty up front saves everyone time. I don't do 3D modelling or video production, native Android (yet – iOS via Despia is covered), maintenance-only retainers for sites I didn't build, or gambling and hype-coin projects. And if I don't believe your idea can ship or succeed as scoped, I'll tell you on the first call instead of taking the money.
Kuala Lumpur (GMT+8). Mornings overlap with Australia and Asia, afternoons with the UK and Europe, and async Loom updates cover the US. Most clients find their project moves faster because something ships overnight, every night.
Fifteen minutes is enough to tell you what your idea needs, what it costs, and when it can be live. No deck required.
You found it. Curiosity is the whole hiring criteria around here. Mention the word below on your intro call and your $500 Express Audit is free with any build booked the same week.
ILLUMINATI