About Walraven Labs
Walraven Labs was established around a simple idea: meaningful software begins with understanding what people actually need.
We develop independent digital products that combine technology, creativity and practical functionality.
Rather than building software for the sake of technology, we focus on creating products with a clear purpose, a defined audience and room to evolve. Each product has its own identity. All share the same commitment to thoughtful design, technical quality and continuous improvement.
Almost everything we build relates to how people think, learn, remember, perceive and perform: the classical art of memory, structured learning, rehearsal and performance, imagination, perception and mental practice, and the work of practitioners who help people.
This focus gives the portfolio coherence. Different audiences, different products — but one field, explored with care and grounded in established knowledge. Two brands deliberately sit beside it: PRAESTO, which helps families prepare for emergencies, and MECUM, a friendly reminder at the door — built with the same care for clarity, privacy and taking part.
A memorisation tool for a Masonic lodge and a rehearsal partner for an actor may share ideas about memory and practice, but their users, language and expectations are entirely different. Each deserves software that speaks to it directly.
So every product gets its own brand and voice — and, once it has a clear audience, its own website. What they share stays behind the scenes: one technical foundation and the same standards for design, privacy and care.
Walraven Labs is led by its founder, Joost Walraven, and operates as a Dutch sole proprietorship. We are deliberately independent: the products we build are the ones we believe should exist.
Philosophy
Every product starts with a real problem and a defined audience. If we cannot say clearly who it is for and why it matters, we do not build it.
Good software removes friction. We favour fewer, better choices, clear language and interfaces that make sense on first use.
Technology is the means, not the goal. We measure our work by whether it genuinely helps the people who use it.
Software only has value when people can actually use it. That is why we design for real-world conditions: different ages, different levels of technical confidence, and moments when attention is limited.
Thoughtful design is how a product earns trust. It shows in small things — sensible defaults, readable typography, honest wording — and adds up to software that feels calm and reliable.
Walraven Labs works from the Netherlands for audiences across borders. Our products are designed from the start to work in multiple languages and regions, and this website is prepared for Dutch, German and further languages.
Our ambition is long-term: to grow a portfolio of software brands that are each respected in their own field.