Learn state capitals, flags, and geography through an adaptive spaced repetition system that adjusts review intervals based on memory performance. Complete interactive quizzes, create custom study sets, and track progress over time.
by Philipp Straub★ 4.522 ratingsEducationFreeData updated 2026-09-06
Learn any topic through short, personalized audio lessons. Ask questions by speaking or typing. Topics range from productivity to quantum physics. Lessons are interactive and tailored to user input. No textbooks required.
Test geography knowledge with trivia challenges. Guess flags and borders to identify countries. Track progress through increasing difficulty levels. Play casually with engaging graphics and background music.
Learn about all 50 U.S. with detailed encyclopedia entries. View maps with state names to test recall. Challenge yourself with interactive memorization games to improve geography knowledge.
Test geography knowledge with modes including world and continent-based challenges. Answer questions to earn points, with three incorrect attempts allowed. Review country in list mode, covering all 199 nations.
Learn geography through quizzes covering countries, states, capitals, and landmarks. Test knowledge with multiple-choice questions and progress tracking.
The app offers over 200 countries and 22 categories across 7 game modes. It features a smart learning engine with spaced repetition and provides deep analytics for tracking progress.
Learn Chinese through word packs with 15,000+ total words. Use spaced repetition to retain new words and review previously learned ones. Practice with adaptive question types that adjust difficulty.
The app offers vocabulary testing through a game format. Users can select from twenty-nine word categories, including Animals, Countries, and Movies, to play.
Knowledge of with randomized questions and answers. Challenge friends in multiplayer mode. Track progress and learn new capital cities through repeated practice.
Explore 249 countries and 50 U.S. states with realistic flags and national anthems. Tap to play anthems, double-tap to link to Wikipedia. Use gesture controls to navigate the 3D . View time zones and country information in multiple languages.