
Massive library of shared academic notes paired with AI study tools, but less focused on flashcard creation.
Knowt records 4,183,953 monthly visits with +5.4% month-over-month growth and Free pricing. Retime records 712 monthly visits with +60.7% growth and Freemium, Free Trial pricing.

Your time, your terms — scheduling without the back-and-forth
| +269 (+60.7%) |
| Primary Market & Share | 🇺🇸 United States (69.6%) | 🇧🇷 Brazil (70.5%) |
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| Direct Visits / mo | 2.74M | 303 |
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| User Rating | 4.3 | 4.2 |
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| Supported Platforms | Website | Website |
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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.

Your time, your terms — scheduling without the back-and-forth
Define your availability once and share a booking page so guests pick a slot that fits your schedule.
Sync Google Calendar, Office365, Zoho, and more so your availability stays accurate and double-booking is avoided.
Collect payments for paid bookings via Stripe and PayPal directly inside the scheduling flow.
Plan meetings with agendas, action items, due dates, and a tasks section so follow-ups are not lost.

Massive library of shared academic notes paired with AI study tools, but less focused on flashcard creation.
Gamified AI study application converting notes into flashcards and quizzes, but with a more playful interface.
SpecialistComprehensive student study platform specialized in solving complex homework and exam prediction, but less focused on flashcards.

Interactive AI learning platform turning course materials into flashcards and quizzes, but with more video explanations.
Converts notes and PDFs into interactive flashcards and audio podcasts, but less established brand presence.
University learning platform combining shared notes with AI flashcard generation, but heavier community focus.

Personalized AI study assistant creating flashcards and mind maps from lecture recordings, but smaller user community.

AI calendar that defends your focus time and schedules work automatically

AI learning assistant converting lectures and documents into study guides and flashcards, but less free-tier friendly.
AI study platform transforming notes and videos into quizzes and summaries, but with fewer collaborative features.

The AI super app for work — tasks, projects, calendar and meetings in one place
A visual AI planner built for every neurotype
Massive library of shared academic notes paired with AI study tools, but less focused on flashcard creation.
Gamified AI study application converting notes into flashcards and quizzes, but with a more playful interface.
SpecialistComprehensive student study platform specialized in solving complex homework and exam prediction, but less focused on flashcards.
Interactive AI learning platform turning course materials into flashcards and quizzes, but with more video explanations.
Converts notes and PDFs into interactive flashcards and audio podcasts, but less established brand presence.
University learning platform combining shared notes with AI flashcard generation, but heavier community focus.
Personalized AI study assistant creating flashcards and mind maps from lecture recordings, but smaller user community.
AI calendar that defends your focus time and schedules work automatically
AI learning assistant converting lectures and documents into study guides and flashcards, but less free-tier friendly.
AI study platform transforming notes and videos into quizzes and summaries, but with fewer collaborative features.
The AI super app for work — tasks, projects, calendar and meetings in one place
A visual AI planner built for every neurotype