Apps

A small, growing catalog of learning apps, each one a carefully crafted “world” you can explore in minutes a day (or lose an entire evening to).

Close-up of handwritten script on an old manuscript page.

World of Alphabets app icon

World of Alphabets

Learn alphabets and writing systems with flashcards, quizzes, and a world map of scripts.

scripts languages history

A dinosaur skeleton on display in a natural history museum.

World of Dinosaurs app icon

World of Dinosaurs

Explore dinosaurs and prehistoric animals with profiles, articles, quizzes, and discovery maps.

dinosaurs paleontology science

A crowd holding red flags during a May Day demonstration.

World of Communism app icon

World of Communism

Explore Communism, Socialism, and Anarchism through thinkers, movements, maps, music, and quizzes.

history politics ideas

A rapper performing on stage with a microphone under warm lights.

Freestyle Rap app icon

Train freestyle rap with beats, tempo control, bilingual rhymes, and recording, powered by Double Rhyme.

improvisation music creativity