A reference tool for 100+ UX laws, cognitive biases, and design heuristics – iOS app and web.
UX principles like Hick's Law and the Gestalt laws are well documented – but scattered across textbooks, Wikipedia, and blog posts of varying quality. No single, well-designed, mobile-first reference existed that a designer could pull up mid-meeting. I built one.
The temptation with reference tools is to build filters, tags, and search first. I resisted. The first version had minimal navigation – browse by category, that's it. Getting the content quality genuinely useful was the only priority. Features followed once the foundation was solid.
Definitions of cognitive biases tend to be abstract. What designers need is application – what does Hick's Law mean for a navigation menu? What does Miller's Law mean for a form? Every principle in Laws & Patterns has a Do / Don't section with concrete UI examples. That's the real value, and it's what makes it worth bookmarking.
The iOS app was the original product. The web version was an afterthought – until I realised that UX laws are heavily searched terms. Building statically generated pages for each principle creates compounding organic traffic. The decision to add the web version was purely strategic, and it's already paying off.
The iOS app is live on the App Store. The web version is integrated into this site. 100+ principles across UX laws, cognitive biases, and Gestalt. A reference I use myself.