
Share and access study materials worldwide — with AI study tools built in
Share and access study materials worldwide — with AI study tools built in
Knowt records 4,183,953 monthly visits with +5.4% month-over-month growth and Free pricing. Ubie records 2,941,054 monthly visits with -23.2% growth and Free pricing.

Free AI symptom checker developed by doctors
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | knowt.com | ubiehealth.com |
| Pricing Model | Free | Free |
| Monthly Visits | 4.18M (4,183,953) | 2.94M (2,941,054) |
| MoM Traffic Delta | +214.76K (+5.4%) | -888.05K (-23.2%) |
| Primary Market & Share | 🇺🇸 United States (69.6%) | 🇺🇸 United States (66%) |
| Direct Visits / mo | 2.74M | 517.59K |
| User Rating | 4.3 | 4.6 |
| Supported Platforms | Website | Website |
Free AI flashcard and study tools for students
Upload up to 30 files and Kai instantly produces notes, flashcards, summaries, and practice resources from them.
Convert Quizlet, Kahoot, Wayground, and YouTube content, or record live lectures to generate notes and study sets.
Upload class files to get a study plan and exam prediction that highlights what your professor emphasizes most.
Kai quizzes you by voice and can turn any note or flashcard into a podcast for study on the go.

Free AI symptom checker developed by doctors
A three-minute interactive questionnaire adapts to your sex, age, history, and specific symptoms.
Get a report covering possible causes, when to see a doctor, and treatment information.
A library of articles and real doctor responses to common health questions.
Ubie reports being supervised by 50+ medical experts and used by 900+ medical institutions worldwide.

Share and access study materials worldwide — with AI study tools built in
Share and access study materials worldwide — with AI study tools built in
AI flashcards that turn note dumps and PDFs into addictive quiz sessions
AI flashcards that turn note dumps and PDFs into addictive quiz sessions
All-in-one IB and MYP exam prep with an AI study partner

AI study tools and a personal tutor built from your own course material
AI study tools and a personal tutor built from your own course material
AI health guidance with licensed doctors on demand
AI health guidance with licensed doctors on demand
Turn any material into notes, flashcards, quizzes, and podcasts.
Europe's student learning hub with notes, AI flashcards and AI chat
Europe's student learning hub with notes, AI flashcards and AI chat

Identify any plant from a photo and learn exactly how to care for it
Identify any plant from a photo and learn exactly how to care for it

Turn your notes into flashcards that stick
Turn your notes into flashcards that stick

Turn any material into visual study sets, flashcards and quizzes
Turn any material into visual study sets, flashcards and quizzes

Turn any lecture, PDF, or video into notes, flashcards, and quizzes in minutes
Turn any lecture, PDF, or video into notes, flashcards, and quizzes in minutes
AI-powered exam prep with question banks, mock tests and spaced-repetition flashcards for 10,000+ exams
AI-powered exam prep with question banks, mock tests and spaced-repetition flashcards for 10,000+ exams