Master History, Biology, Psychology and more through bite-sized lessons, spaced repetition, and real-time PvP knowledge battles.
We combine proven learning science with game mechanics that make you want to come back every day.
Teaching cards explain concepts clearly, then quiz questions test your understanding. 5 minutes is all you need.
Our SM-2 algorithm schedules reviews at optimal intervals. You retain more while studying less.
XP, levels, streaks, achievements, and leaderboards. Every lesson feels like leveling up in your favorite game.
Challenge friends or random opponents to real-time trivia duels. Climb the ELO rankings and prove your knowledge.
Fully translated content from Portuguese to Japanese. Learn in your native language, no barriers.
See how subjects connect. Discover cross-disciplinary links between History, Psychology, Economics and more.
From ancient civilizations to cognitive biases. Each subject has 90 topics, 450 lessons, and thousands of questions.
From Mesopotamia to the Moon landing
Cells, evolution, and the code of life
How your mind really works
Society, culture, and human interaction
Markets, money, and decision-making
What makes us human across cultures
Power, governance, and political systems
Challenge friends or match with random opponents. Answer 60 trivia questions in 60 seconds. The most correct answers wins. Climb the ELO rankings.
Both players answer simultaneously
Competitive rating system
Pick your strongest topic
Earn exclusive battle badges
Swipe through mind-blowing facts from our TikTok-style Discover feed.
Cleopatra lived closer in time to the Moon landing than to the construction of the Great Pyramid of Giza.
Your body contains about 37.2 trillion cells, and each one contains your entire genetic code.
The Dunning-Kruger effect shows that people with limited knowledge tend to overestimate their competence.
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