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Curio

curio.to

From $8/mo Free plan WebAndroid
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Spec score 7.6 #78 of 96 in AI Study Tools

Spec sheet

Purpose
Curio turns study material such as PDFs and lecture videos into explanations, practice questions, flashcards and quizzes for students.Read 12 Oct 2026 · curio.to
Support
Curio’s site lists [email protected] as its contact email.Read 12 Oct 2026 · curio.to
Headquarters
Wilmington, Delaware, United StatesRead 28 Sep 2026 · curio.to
Android app
Curio links to an Android app on Google Play and says iOS is coming soon.Read 12 Oct 2026 · curio.to
Data privacy
Curio’s FAQ says it does not sell user data and that documents, notes and chats stay private and secure.Read 12 Oct 2026 · curio.to
Developer listing
Google Play identifies the app developer as Educate Online, Inc. and lists a Wilmington, Delaware address.Read 12 Oct 2026 · play.google.com
Exam practice
The site describes custom mock exams, surprise quizzes and timed practice.Read 12 Oct 2026 · curio.to
Free tier limit
The free plan has fair daily limits, while paid plans advertise unlimited learning tools.Read 12 Oct 2026 · curio.to
Language study
Curio says users can upload text to create vocabulary drills, grammar checks and quizzes.Read 12 Oct 2026 · curio.to
Learning tools
Curio offers AI tutoring, explanations, recap notes, flashcards, quizzes and exam-style practice questions.Read 12 Oct 2026 · curio.to
Progress
Curio tracks progress and reminds users when to review material.Read 12 Oct 2026 · curio.to
SAT access
The Ultra Curio plan includes access to the SAT feature.Read 12 Oct 2026 · curio.to
Study materials
The site says users can upload lecture slides, PDFs, notes, past papers, screenshots and images.Read 12 Oct 2026 · curio.to
YouTube
The site says users can paste a YouTube lecture link to get its main ideas as study notes.Read 12 Oct 2026 · curio.to

Plans and prices

Curio Free Free forever AI tutor for any subject · Upload docs, notes or images · Flashcards, quizzes and summaries · Practice tests · Fair daily limits Read 12 Oct 2026 · curio.to
Super Curio $8 a month Billed yearly; $8.00 /month Advanced AI tutor · Unlimited chat, flashcards, quizzes and tests · Larger file upload limits · Adaptive test difficulty Read 12 Oct 2026 · curio.to
Ultra Curio $21 a month Billed yearly; $21.00 /month Advanced AI tutor · Unlimited chat, flashcards, quizzes and tests · Adaptive test difficulty · SAT feature Read 12 Oct 2026 · curio.to

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