Consumer brand
Gerlach – printed materials and packaging
Four product catalogues in Polish and English, an icon set, five types of brochures, the cover of a book on the brand's history and a packaging series for Gerlach, a brand trading since 1760.
We design and build digital products
We are an interdisciplinary design and development team from Krakow. We create apps, websites, and brands from scratch, combining our academic fine arts roots with years of hands-on IT experience. We deliver even the most complex rollouts. You focus on running your company, and we'll design and develop the digital tools that help it grow faster.
Services
What we can do for you
We handle the entire product development process – from strategy and interface design to code optimization and maintenance. Each phase requires different, specialized skills, but we bring it all together within a single company. You gain peace of mind and save time, as the bridge between design and technology is built entirely in-house, with zero communication gaps.
01 Custom website design & development Fast, secure, search-visible company websites. Designed and built end to end, then cared for. 02 E-commerce development & online stores WooCommerce, PrestaShop, Shopify and custom platforms. With analytics that show what actually sells. 03 AI integration services AI integrations with company data, process automation and AI agents. A pilot with a measurable result, then rollout. 04 Web applications & SaaS development Panels, dashboards and SaaS products – from MVP to scalable architecture. 05 Mobile & desktop app development Apps for phone and desktop – designed and built by one team, from concept to release. 06 Brand identity design & design systems Company logo, brand manual, visual identity and design systems. One brand voice on paper and in apps. 07 UX audits & UX/UI design UX audits, research, interfaces and AI experience. Complete experience design for digital products. 08 Publication design & DTP Catalogues, reports, books and corporate materials – design, typesetting and print supervision.
Trusted by
The full spectrum
We guide your brand from strategy to launch
You don’t have to explain your brand from scratch to every new subcontractor. With us, you only brief it once. Based on that, we design your logo and visual identity, prep print materials, and simultaneously build websites, e-commerce platforms and apps.
Your brand stays absolutely consistent – on a physical business card, a smartphone screen, and across a complex design system – because we develop its entire ecosystem under one roof. In practice, this means fewer meetings, faster decision-making, and quality you can see at first glance.
See how we work →Work
Selected projects
Culture & tourism
Miasta Gwarków – brand identity for an industrial heritage trail
A full brand identity for a tourism brand, from the mark to a system of carriers. Logo, typography, colours and rules that let the brand speak with one voice in print and on screen.
Premium fashion
Hexeline – e-commerce design for a premium fashion brand
A completely new online store for Poland's premium womenswear brand Hexeline: from a revised brand book to every single view, checkout included. A year of design work, a Shopware build by a partner and roughly 20% online sales growth within a year.
Services / Food & catering
Catering Równość – design and build of a brand website for a catering company
How did we combine appetising design with performance? Redesign and build of the brand website for Spółdzielnia Równość.
Team
You work directly with the four of us
No account managers. We bring over two decades of design and development experience to the project. We are a tight-knit team delivering solutions that prove themselves in the real market. We take full responsibility for the information architecture, visual details, and the final performance of the product. Around the core works a proven network of specialists: senior graphic designers, copywriters, photographers and XR/AR experts. We scale the team to the project, not the other way round.
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Jerzy Koenigshaus
Product Head Design
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Piotr Sember
Head Developer
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Antonina Jasińska
UX/UI Head Designer
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Agnieszka Wróblewska
Brand designer
In numbers
- 22
- years of design and delivery practice
- 4
- founders you work with directly
- 150+
- projects delivered
- 100%
- of projects with design and code in one team
What clients say
Blog
We write about design, technology and AI
AI
Labelling AI-generated content: what the EU AI Act requires and how to prepare
From 2 August 2026 the EU AI Act's transparency rules apply. We explain which AI-generated content needs a label, who's responsible and how to build labelling into your marketing workflow.
E-commerce
How to increase your online store's conversion rate – CRO in practice
Traffic grows but sales don't? Conversion rate optimization (CRO) is a cycle of diagnosis, hypothesis, test and rollout. We show where stores lose the most and where to start.
Branding i typografia
Key visual: what it is, examples and how to design one
A key visual is the leading graphic motif of a brand or campaign. We explain the meaning of the term, how a key visual differs from a logo and visual identity, what goes into one, how the design process works and what it costs, with examples from real projects.
AI
AI training for companies – when a workshop is enough, and when you need an implementation
Training alone rarely changes how a company works. We explain when a workshop makes sense, when it's better to implement the tools and teach the team on their own processes, and how to work out which pays off.
Frequently asked questions
How does a collaboration with Sweet Lava start?
It starts with a conversation. You tell us about your needs and we ask questions – probably more than you expect. Within a few days we come back with specifics: scope, timeline and price. For more complex projects we suggest a paid workshop. You leave it with a plan solid enough to deliver even with another agency, if that's what you decide.
How much does a website cost?
A typical custom-designed company website runs €2,500–6,000; larger multilingual sites €6,000–18,000. We always itemise quotes so you know what you are paying for. A detailed pricing guide is on our blog.
Which technologies do you work in?
Websites: WordPress, HubSpot or a modern headless stack (Astro, Next.js with a headless CMS). E-commerce: WooCommerce, Shopify, PrestaShop and custom platforms. Applications: React/Vue front-ends, Node.js/PHP/Python back-ends, React Native/Flutter for mobile. We match technology to the task, never the other way round.
Do I receive the copyright to the work?
Yes. On project completion and settlement we transfer the economic copyright, and the code and source files are yours. No vendor lock-in.
Have an idea in mind? Let's talk.
Tell us about your idea and we'll recommend the best route from concept to a working product.