Duolingo is a popular language learning platform that can be used to learn Japanese. It offers comprehensive yet easy-to-use courses, tracks progress, and has no upfront cost. The curriculum covers basic greetings and introductions up to more complex grammar concepts. To reach fluency in Japanese, users must not only master the material presented but also have an extensive vocabulary and practice speaking with native speakers. Duolingo can be helpful for beginners but should not be relied upon exclusively if one wishes to reach mastery level proficiency in the language. Combining Duolingo with other resources such as joining forums dedicated to discussing various aspects of the language or watching videos created by native speakers can increase chances of success in reaching fluency much faster than relying solely on Duolingo alone.