
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. Windmill (Windy) records 24,480 monthly visits with +20.6% growth and Contact for Pricing pricing.

AI performance reviews grounded in your team's actual work
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | knowt.com | gowindmill.com |
| Pricing Model | Free | Contact for Pricing |
| Monthly Visits | 4.18M (4,183,953) | 24.48K (24,480) |
| MoM Traffic Delta | +214.76K (+5.4%) |
| +4.18K (+20.6%) |
| Primary Market & Share | 🇺🇸 United States (69.6%) | 🇺🇸 United States (73.4%) |
|---|
| Direct Visits / mo | 2.74M | 9.98K |
|---|
| User Rating | 4.3 | 4.4 |
|---|
| 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.

AI performance reviews grounded in your team's actual work
An in-Slack agent that runs check-ins, collects peer input, and drafts performance reviews from evidence it gathered during the quarter.
Agendas are assembled from the week's actual work, with space for the employee to add what is on their mind before the meeting.
Windy notices when two people finish something together and asks how it went, so feedback arrives in days rather than six months later.
Committee members get a bias-flagged pre-read and a rating grid where every placement can be traced back to supporting evidence.

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.
AI-native enterprise skills management and learning platform

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 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.

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Agentic HR platform uniting HRIS, performance and talent management
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 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.
Free / Open-sourceThe AI super app for work — tasks, projects, calendar and meetings in one place