# ThinkBetter

> ThinkBetter is an iOS and Android app for learning mental models and cognitive biases — deep-dives, real-world examples, quizzes and audio. This site is a free web reference for every concept in the library.

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## Cognitive biases

- [Loss Aversion Bias](https://thinkbetter.app/cognitive-biases/loss-aversion-bias.md): We often feel the pain of losing something…
- [The Ben Franklin Effect](https://thinkbetter.app/cognitive-biases/ben-franklin-effect.md): Someone who does a favor for another is…
- [The Baader-Meinhof Phenomenon](https://thinkbetter.app/cognitive-biases/baader-meinhof-phenomenon.md): When something you've recently learned or…
- [The False Consensus Effect](https://thinkbetter.app/cognitive-biases/false-consensus-effect.md): We tend to think more people share our…
- [Anchoring Bias](https://thinkbetter.app/cognitive-biases/anchoring-bias.md): Anchoring Bias is the tendency to overly…
- [Dunning-Kruger Effect](https://thinkbetter.app/cognitive-biases/dunning-kruger-effect.md): Individuals with low ability or…
- [Negativity Bias](https://thinkbetter.app/cognitive-biases/negativity-bias.md): Predisposition to prioritize and remember…
- [Survivorship Bias](https://thinkbetter.app/cognitive-biases/survivorship-bias.md): The focus on successful outcomes while…
- [Scarcity Bias](https://thinkbetter.app/cognitive-biases/scarcity-bias.md): The tendency to value and desire something…
- [Sunk Cost Fallacy](https://thinkbetter.app/cognitive-biases/sunk-cost-fallacy.md): The tendency to continue something once an…
- [Hindsight Bias](https://thinkbetter.app/cognitive-biases/hindsight-bias.md): The tendency to believe, after an event has…
- [Ostrich Effect](https://thinkbetter.app/cognitive-biases/ostrich-effect.md): The tendency to avoid or ignore negative or…
- [Fundamental Attribution Error](https://thinkbetter.app/cognitive-biases/fundamental-attribution-error.md): People often attribute someone's behavior…
- [Default Effect](https://thinkbetter.app/cognitive-biases/default-effect.md): People tend to stick with the pre-defined…
- [Ambiguity Effect](https://thinkbetter.app/cognitive-biases/ambiguity-effect.md): People tend to avoid options with unknown…
- [Base Rate Fallacy](https://thinkbetter.app/cognitive-biases/base-rate-fallacy.md): Ignoring general (usually statistical)…
- [Zero-sum Thinking](https://thinkbetter.app/cognitive-biases/zero-sum-thinking.md): Assuming that one person's gain is directly…
- [Rosy Retrospection](https://thinkbetter.app/cognitive-biases/rosy-retrospection.md): People tend to remember past events more…
- [In-Group Bias](https://thinkbetter.app/cognitive-biases/in-group-bias.md): People tend to favor members of their own…
- [Cognitive Dissonance](https://thinkbetter.app/cognitive-biases/cognitive-dissonance.md): The mental discomfort experienced by a…
- [Availability Heuristic](https://thinkbetter.app/cognitive-biases/availability-heuristic.md): People tend to rely on immediate examples…
- [Confirmation Bias](https://thinkbetter.app/cognitive-biases/confirmation-bias.md): People tend to favor information that…
- [Gambler’s Fallacy](https://thinkbetter.app/cognitive-biases/gamblers-fallacy.md): The mistaken belief that if something…
- [Empathy Gap](https://thinkbetter.app/cognitive-biases/empathy-gap.md): Underestimating the influence of emotional…
- [Endowment Effect](https://thinkbetter.app/cognitive-biases/endowment-effect.md): We value things more just because we own…
- [Zeigarnik Effect](https://thinkbetter.app/cognitive-biases/zeigarnik-effect.md): We remember uncompleted or interrupted…
- [Hyperbolic Discounting](https://thinkbetter.app/cognitive-biases/hyperbolic-discounting.md): We prefer immediate rewards over future…
- [Framing Effect](https://thinkbetter.app/cognitive-biases/framing-effect.md): How information is presented shapes our…
- [Curse of Knowledge](https://thinkbetter.app/cognitive-biases/curse-of-knowledge.md): We find it hard to imagine not knowing…
- [Barnum Effect](https://thinkbetter.app/cognitive-biases/barnum-effect.md): We tend to accept vague, general…
- [Halo Effect](https://thinkbetter.app/cognitive-biases/halo-effect.md): We tend to judge a person's overall…
- [Impact Bias](https://thinkbetter.app/cognitive-biases/impact-bias.md): We tend to overestimate the intensity and…
- [Salience Bias](https://thinkbetter.app/cognitive-biases/salience-bias.md): We tend to focus on the most noticeable or…
- [Groupthink](https://thinkbetter.app/cognitive-biases/groupthink.md): We tend to conform to group opinions, often…
- [Mere Exposure Effect](https://thinkbetter.app/cognitive-biases/mere-exposure-effect.md): We tend to develop a preference for things…
- [Bystander Effect](https://thinkbetter.app/cognitive-biases/bystander-effect.md): We are less likely to help someone in need…
- [Availability Cascade](https://thinkbetter.app/cognitive-biases/availability-cascade.md): We tend to believe something is more true…
- [Hawthorne Effect](https://thinkbetter.app/cognitive-biases/hawthorne-effect.md): People tend to change their behavior when…
- [Illusion of Control](https://thinkbetter.app/cognitive-biases/illusion-of-control.md): We tend to overestimate our ability to…
- [Narrative Fallacy](https://thinkbetter.app/cognitive-biases/narrative-fallacy.md): We have a tendency to create stories to…

## Mental models

- [Hanlon's Razor](https://thinkbetter.app/mental-models/hanlons-razor.md): Never attribute to malice that which can be…
- [Inversion](https://thinkbetter.app/mental-models/inversion.md): Instead of considering what you need to…
- [Bounded Rationality](https://thinkbetter.app/mental-models/bounded-rationality.md): Our ability to make rational decisions is…
- [Circle of Competence](https://thinkbetter.app/mental-models/circle-of-competence.md): The Circle of Competence emphasizes…
- [Occam's Razor](https://thinkbetter.app/mental-models/occams-razor.md): When presented with multiple explanations…
- [Map is Not The Territory](https://thinkbetter.app/mental-models/map-is-not-the-territory.md): Our perception or representation of reality…
- [Regression to the Mean](https://thinkbetter.app/mental-models/regression-to-the-mean.md): Regression to the mean is the statistical…
- [Parkinson's Law](https://thinkbetter.app/mental-models/parkinsons-law.md): Work expands to fill the time available for…
- [Law of Diminishing Returns](https://thinkbetter.app/mental-models/law-of-diminishing-returns.md): After a certain point, each additional unit…
- [Pareto Principle](https://thinkbetter.app/mental-models/pareto-principle.md): aka the 80/20 rule, says that is common for…
- [Bayes' Theorem](https://thinkbetter.app/mental-models/bayes-theorem.md): Probabilities (or the likelihood of…
- [Probabilistic Thinking](https://thinkbetter.app/mental-models/probabilistic-thinking.md): Decisions or predictions are based on…
- [Second-Order Thinking](https://thinkbetter.app/mental-models/second-order-thinking.md): We should consider and plan for the…
- [Pygmalion Effect](https://thinkbetter.app/mental-models/pygmalion-effect.md): People tend to perform according to the…

## About the app

ThinkBetter helps you learn mental models and cognitive biases so you can think more clearly day to day. Open any concept for a short explanation and examples; the app goes further with quizzes, audio, and a weekly path through the full library. A free version includes every model and bias, with more content per concept than these pages show. Pro is an optional, inexpensive upgrade when you want the rest of each deep-dive.

- iOS: https://apps.apple.com/app/id6459831884
- Android: https://play.google.com/store/apps/details?id=io.ventureship.braintricks