Debias: Cognitive Biases Quiz
Contains adsIn-app purchases
Everyone
info
10+
Downloads
infoAI
infoAI
About this app
Do you think you see the world clearly? Your brain runs on shortcuts, and those shortcuts quietly shape every decision you make.
Debias is a cognitive bias trainer, not just another reference list. Learn the 188 cognitive biases that distort judgment, test yourself on nearly 19,000 real-world scenarios, and log your own decisions to see which biases keep showing up in your thinking.
🎯 WHAT MAKES DEBIAS DIFFERENT
Most cognitive bias apps hand you a list to read. Debias gives you practice, feedback, and a record of your own thinking.
🔍 QUIZ YOURSELF - 18,869 SCENARIOS
Work through realistic situations built from all 188 cognitive biases. Track your accuracy, watch your score climb, and turn passive reading into knowledge that actually sticks.
🧠 REFLECT ON REAL DECISIONS
Log a decision you are facing - a job offer, a big purchase, a project deadline - and check it against the biases most likely to be at work. Sunk cost fallacy. Planning fallacy. Optimism bias.
⚡SEE YOUR PATTERNS
Your reflection history shows which cognitive biases you lean on most. Revisit past decisions, watch your self-awareness improve, and build genuinely clearer thinking over time.
🔍EXPLORE 188 COGNITIVE BIASES
Built around the Cognitive Bias Codex and organized into four core categories: too much information, not enough meaning, the need to act fast, and what we should remember. Browse the bias wheel, filter by category, or search full text to find any bias in seconds.
CLEAR EXPLANATIONS, NO JARGON
Every cognitive bias comes with a plain-language definition and a real-world example, so the concept is memorable instead of abstract.
SAVE WHAT MATTERS
Bookmark the biases you want to work on and come back to them anytime.
WHO IT IS FOR
Cognitive biases affect everyone who makes decisions. Debias is built for:
- Students of psychology, behavioral economics, and decision science
- Investors and analysts who need to check their own reasoning
- Managers and founders making high-stakes calls
- Designers and researchers who want to understand user behavior
- Anyone who wants to think more clearly and assume less
WHY IT MATTERS
Learning to recognize cognitive biases helps you make better and more rational decisions, argue more honestly, avoid expensive thinking errors, and understand why people - including you - behave the way they do.
Understand more. Assume less. Download Debias and start training your thinking today.
Debias is a cognitive bias trainer, not just another reference list. Learn the 188 cognitive biases that distort judgment, test yourself on nearly 19,000 real-world scenarios, and log your own decisions to see which biases keep showing up in your thinking.
🎯 WHAT MAKES DEBIAS DIFFERENT
Most cognitive bias apps hand you a list to read. Debias gives you practice, feedback, and a record of your own thinking.
🔍 QUIZ YOURSELF - 18,869 SCENARIOS
Work through realistic situations built from all 188 cognitive biases. Track your accuracy, watch your score climb, and turn passive reading into knowledge that actually sticks.
🧠 REFLECT ON REAL DECISIONS
Log a decision you are facing - a job offer, a big purchase, a project deadline - and check it against the biases most likely to be at work. Sunk cost fallacy. Planning fallacy. Optimism bias.
⚡SEE YOUR PATTERNS
Your reflection history shows which cognitive biases you lean on most. Revisit past decisions, watch your self-awareness improve, and build genuinely clearer thinking over time.
🔍EXPLORE 188 COGNITIVE BIASES
Built around the Cognitive Bias Codex and organized into four core categories: too much information, not enough meaning, the need to act fast, and what we should remember. Browse the bias wheel, filter by category, or search full text to find any bias in seconds.
CLEAR EXPLANATIONS, NO JARGON
Every cognitive bias comes with a plain-language definition and a real-world example, so the concept is memorable instead of abstract.
SAVE WHAT MATTERS
Bookmark the biases you want to work on and come back to them anytime.
WHO IT IS FOR
Cognitive biases affect everyone who makes decisions. Debias is built for:
- Students of psychology, behavioral economics, and decision science
- Investors and analysts who need to check their own reasoning
- Managers and founders making high-stakes calls
- Designers and researchers who want to understand user behavior
- Anyone who wants to think more clearly and assume less
WHY IT MATTERS
Learning to recognize cognitive biases helps you make better and more rational decisions, argue more honestly, avoid expensive thinking errors, and understand why people - including you - behave the way they do.
Understand more. Assume less. Download Debias and start training your thinking today.
Learn 188 cognitive biases, test yourself, and see which ones are yours.
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
- No data shared with third partiesLearn more about how developers declare sharing
- No data collectedLearn more about how developers declare collection
What’s new
Version 1.0
Initial public release
Learn core cognitive biases with clear, focused explanations
Take short quizzes to test understanding and reinforce learning
Reflect on real-life decisions with Bias Check
View reflection history and identify recurring bias patterns
Track quiz progress and basic stats
Save biases and insights for later reference
Clean, distraction-free UI optimized for focus
All data stored locally on device
Initial public release
Learn core cognitive biases with clear, focused explanations
Take short quizzes to test understanding and reinforce learning
Reflect on real-life decisions with Bias Check
View reflection history and identify recurring bias patterns
Track quiz progress and basic stats
Save biases and insights for later reference
Clean, distraction-free UI optimized for focus
All data stored locally on device
App support
About the developer
Mehmet Basgol
mehmet.basgol@hotmail.com
Velioğlu caddesi, Babil Konakları Apartman, Demirkapı Mahallesi
85/B, daire:16
34214 Bağcılar/İstanbul
Türkiye
