Learn new words with definitions and etymology. Explore historical events from past dates. Take daily quizzes to test knowledge. Discover fun and trivia. Track progress and revisit content for review.
Practice arithmetic operations including addition, subtraction, multiplication, and division. Track missed numbers in a sequence. Complete quizzes across 22 categories. Available in 30+ languages.
Perform surgeries on aliens using tools like a surgical laser and X-Ray machine. Diagnose injuries, treat wounds, and care for patients. Track progress through various cases and complete missions to advance.
Teach basic skills with interactive quizzes on addition, subtraction, and number comparisons. Complete 700 free tasks across different difficulty levels. Remove ads to access an ad-free version.
Access bite-sized of non-fiction books. Read key insights in minutes. Save time by skipping lengthy content. Learn practical life, career, and relationship advice. Track progress and revisit notes. Share with others.
Learn idioms through explanations and examples. Explore meanings and usage in context. Practice with quizzes and flashcards. View idioms in and translated text. Share progress and review frequently used phrases.
Watch videos in over 200 languages to learn vocabulary. Tap words to view meanings and definitions. Access hundreds of video clips for practice. Track progress through interactive content. Share notes and vocabulary lists with others.
Create detailed with custom labels and priorities. Set multiple reminders and recurring schedules. Organize into smart lists or custom to-do lists. Track progress on habit-building and shopping lists. Automatically recognize dates from task titles.
Play an infinite runner game while answering vocabulary quizzes. Correctly answer questions to progress through levels. Kanji and vocabulary. Complete challenges to improve skills or prepare for JLPT certification.