UX Field Guide

UX Field Guide

A reference for designers

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Free

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Released
July 10, 2026
Updated
October 6, 2026

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UX Field Guide screenshot #1 for iPhone
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UX Field Guide screenshot #6 for iPhone
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About

UX Field Guide is a calm, offline reference for anyone who designs digital products. It collects the patterns, best practices, named laws, and psychological principles behind good user experience, each explained in plain language with a clear "apply" note, a good-versus-bad example, a concept illustration, and, where it helps, an interactive demo you can play with. OPENS LIKE A BOOK Open iPhone Duo like a book and the guide lays out two pages across the inner display, with the library and a pillar's entries on the left page and the entry you are reading on the right. The pages meet at the fold with a clear strip either side of the crease, so neither the list nor the entry runs across it. You can search on the left page while the entry stays open on the right. When you close the phone, the outer display carries on with the same entry and the related entries you followed, and both pages come back when you open it again. On the outer display the whole guide works as it does on any iPhone, with search, Ask, and all four pillars. FOUR PILLARS • Patterns: reusable solutions like progressive disclosure, empty states, and onboarding. • Best Practices: actionable do and don't guidance, from sensible defaults to touch target size. • UX Laws: the named laws and effects, including Hick's, Fitts's, Miller's, Jakob's, and Von Restorff. • Psychology: broader concepts and biases, including the Gestalt principles. FIND BY MEANING Search matches the meaning of what you type, so you can describe a problem in your own words, and it ranks the most relevant entries with a short summary. Ask a question in plain language and get a short, grounded answer that points you back into the guide. PRIVATE BY DESIGN Everything runs on your device. The guide ships inside the app and works with no connection. There are no accounts, no ads, and no tracking of any kind. The design is quiet and legible, with a clear type hierarchy, a single functional accent, and light and dark themes.
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What's New in UX Field Guide

1.1

October 6, 2026

UX Field Guide is now ready for iPhone Duo. • Open the phone like a book and the guide lays out two pages across the inner display. The left page holds the library, with search and the four pillars, and turns to a pillar's entries, while the right page holds the entry you are reading and the related entries you follow from it. • The two pages meet at the fold with a clear strip either side of the crease, so neither the list nor the entry runs across it. • You can search on the left page while the entry you are reading stays open on the right. • Folding the phone keeps your place: the outer display carries on with the same entry, scrolled to where you were reading, along with the related entries you followed, and opening the phone again brings both pages back. • With the phone closed, the whole guide works on the outer display as it does on any iPhone, with search, Ask, the four pillars, and every entry. TWELVE NEW PATTERNS The guide adds twelve patterns: paywalls, two-factor authentication, account verification, account deletion, media uploads, cancelling a subscription, not-found pages and dead ends, onboarding checklists, help centres, inviting collaborators, notification settings, and chat and messaging. Each one has its own illustration and an interactive demo to try, and entries such as Sign-In & Registration, Checkout Flow, and Empty States now link to them. The guide holds 168 entries. ALSO IN THIS UPDATE • When a question names an entry, Search and Ask now find that entry more reliably. • The Chunking, Pair Icons with Text Labels, and Support Scalable Text demos now fit on smaller iPhone screens. • On iPad the guide opens on Patterns instead of an empty column. • At the largest text sizes, the Ask button moves under the search field and your search keeps the full width. Long titles also keep whole words, and the app name in About no longer cuts off. • The About link steps aside while the search field is active, so it stays clear of the pillars above the keyboard. • The search index, which the app rebuilds by itself, is left out of your device backups.

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