Curio
Free
AI tutor for any subject · Upload docs, notes or images · Flashcards, quizzes and summaries · Practice tests · Fair daily limits
Checked 12 Oct 2026
Plans and prices
Curio pricing
Super Curio
$8 a month
Advanced AI tutor · Unlimited chat, flashcards, quizzes and tests · Larger file upload limits · Adaptive test difficulty
Checked 12 Oct 2026
Ultra Curio
$21 a month
Advanced AI tutor · Unlimited chat, flashcards, quizzes and tests · Adaptive test difficulty · SAT feature
Checked 12 Oct 2026