From beginner to advanced levels. Access a large offline database of words and phrases. Explore topics and study essential vocabulary. Receive daily updates with new useful words. No registration required. No paid content. offline.
Provides likelihood ratios for clinical diagnosis. Users input patient symptoms and test results to refine differential diagnoses. Integrates with open-source reference data for evidence-based decision support.
Learn a language through audio files from native speakers. Play 3 levels of games and 3 types of quizzes. Search a database with cultural notes, audio, video, and images. Practice listening and speaking skills.