# Bias Handbook > Bias Handbook (iPhone/iPad app by Stepapp, Inc..) - Source: https://appshunter.io/ios/app/bias-handbook/id6767604061 (this page in markdown: same URL + `.md`) - Developer: [Stepapp, Inc.](https://appshunter.io/developer/1584132042) - Category: Education, Business - Price: $0.99 - Age rating: 17+ - Requires: iOS 17.0 · 2 MB - Languages: American English - Released: 2026-05-11 - Data updated: 2026-08-07 - User reviews in markdown: https://appshunter.io/ios/app/bias-handbook/id6767604061/reviews.md ## What is Bias Handbook? Bias Handbook is a curated reference guide to the cognitive and behavioral biases that shape human thinking, judgment, and decision-making — now with visual diagrams for every bias and a built-in library of the behavioral-design frameworks professionals use to change behavior. Explore well-known biases such as confirmation bias, anchoring, survivorship bias, framing effects, the availability heuristic, and many more — each with a clear definition, real-world examples, a visual diagram, and links to related biases. New in this version: the Frameworks tab. Go beyond spotting biases to actually applying behavioral science, with 12 of the field's most trusted frameworks — COM-B, the Behaviour Change Wheel, the Theoretical Domains Framework, the BCT Taxonomy, EAST, MINDSPACE, Nudge, the Fogg Behaviour Model, Self-Determination Theory, Dual-Process (System 1/2), the Theory of Planned Behaviour, and the Transtheoretical Model. Each is explained in depth, illustrated with its own diagram, and cited to its original peer-reviewed or government source. Designed for students, researchers, product teams, behavioral scientists, marketers, investors, and anyone curious about how the mind works, Bias Handbook makes complex behavioral concepts easy to understand and accessible anywhere. Features: • A comprehensive, growing library of cognitive and behavioral biases • Visual diagrams — every bias has a clean, color-coded schematic that captures the idea at a glance • NEW — Frameworks tab: 12 in-depth behavioral-design frameworks (COM-B, EAST, Nudge, Fogg, and more), each with its own diagram • Diagnostic questions, end-to-end worked examples, implementation playbooks, templates, and practice exercises for every framework • Every framework cited to its original trusted source • Fast in-app search across names, aliases, and summaries • Filter by category — Decision-making, Memory, Belief & Probability, Social, and Self-perception, each with its own color • Bias of the Day — a fresh bias on the banner the first time you open the app each day • Bookmarks — save biases worth revisiting in a dedicated tab • Personal notes — capture how each bias shows up in your work or life, with a tab listing every bias you've noted • Daily reminders — set a time for a gentle nudge to learn one bias a day • Clean, intuitive browsing experience • Cross-references between related biases • An educational reference for psychology and decision science • Regular updates with new content Built by the Center for Behavioral Decisions, a research and consulting unit working at the intersection of behavioral economics, psychology, and decision science. Understand how biases influence decisions — and learn the frameworks to change behavior in everyday life and work. ## Version history (last 3 releases) ### 1.3 — 2026-06-16 This is our biggest visual update yet. NEW — A diagram for everything Every bias now has its own visual diagram: a clean, color-coded schematic that captures the idea at a glance. NEW — The Frameworks tab Bias Handbook now helps you act on biases, not just recognize them. We've added 12 of the most trusted frameworks in behavioral design, each with its own diagram and a complete, practical guide: COM-B • Behaviour Change Wheel • Theoretical Domains Framework • BCT Taxonomy v1 • EAST • MINDSPACE • Nudge • Fogg Behaviour Model (B=MAP) • Self-Determination Theory • Dual-Process (System 1/2) • Theory of Planned Behaviour • Transtheoretical Model Each framework includes: • A clear visual diagram of how the model works • Every component explained in depth — what it means, why it matters, and how to assess it • Ready-to-use diagnostic questions • A detailed, end-to-end worked example • An implementation playbook with reusable templates and checklists • Use cases, evidence, and common pitfalls with fixes • Hands-on exercises to practice • A full citation to the original peer-reviewed or government source We've also enlarged the framework badges and polished the browsing experience throughout. Thanks for using Bias Handbook. We're adding new content regularly — and we'd love your feedback. ### 1.1 — 2026-05-18 Welcome to Bias Handbook — your pocket reference to the cognitive and behavioral biases behind every decision. • A color-coded library of biases, fully searchable • Bias of the Day, fresh on the banner each day • Bookmarks and personal notes, each with a dedicated tab • Daily reminders to learn one bias a day ### 1.0 — 2026-05-11 No release notes. ## More apps by Stepapp, Inc. - [theStepApp - Motivator](https://appshunter.io/ios/app/thestepapp-motivator/id1584132040) - [BBooks](https://appshunter.io/ios/app/bbooks/id6443764221) - [cBreath: Thoughtful Decisions](https://appshunter.io/ios/app/cbreath-thoughtful-decisions/id6739448135) - [Tatevatsi: Learn to Decide](https://appshunter.io/ios/app/tatevatsi-learn-to-decide/id6774241121) All apps by Stepapp, Inc.: https://appshunter.io/developer/1584132042 ## Related topics [cognitive bias glossary](https://appshunter.io/ios/topics/cognitive-bias-glossary) · [the bias](https://appshunter.io/ios/topics/the-bias) · [bias](https://appshunter.io/ios/topics/bias) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-07.*