KeepRule is a free AI-powered investment discipline platform that helps investors make better decisions by learning from 26 legendary investors including Warren Buffett, Charlie Munger, Ray Dalio, and Peter Lynch. Key Features: - Investment Principles Library: Browse curated investment principles from 26 master investors, organized by categories like value investing, risk management, and behavioral finance. - AI Investment Scenarios: Practice real-world investment decisions with AI-generated scenarios and get scored based on how well you apply proven investment principles. - Psychology Test: Discover your investor personality type and understand your behavioral biases with our investment psychology assessment. - Investment Glossary: Comprehensive glossary of investment terms and concepts explained in plain language. - Multi-language Support: Available in 5 languages (English, Chinese, Japanese, Korean, Spanish). KeepRule is completely free to use. Whether you're a beginner learning the basics of value investing or an experienced investor looking to sharpen your discipline, KeepRule provides the tools and knowledge to help you invest smarter.