Spot the Fallacy is a critical-thinking brand that helps people recognize flawed reasoning and cognitive biases in news, social media, and everyday conversations. Its central offering is a short, interactive game available on iOS and Android, with browser-based play also available. Players assess realistic arguments drawn from settings such as group chats, headlines, opinion pieces, and campaign speeches, then learn the name and structure of each reasoning error through clear explanations.

The app features more than 80 logical fallacies and six game modes. It adapts practice to the patterns a player tends to miss, helping them build awareness through repeated, focused rounds rather than lectures. Spot the Fallacy also provides a free library of fallacy guides, resources on cognitive biases and critical thinking, and articles covering topics such as pseudoscience. Designed for brief daily use, the service requires no account and displays no ads, according to its website. Spot the Fallacy aims to make critical-thinking practice accessible and engaging, helping users evaluate arguments more carefully at work, in the news, and in everyday discussions.