
Massive library of shared academic notes paired with AI study tools, but less focused on flashcard creation.
Free Blocks records 0 monthly visits with 0% month-over-month growth and Freemium pricing. Knowt records 4,183,953 monthly visits with +5.4% growth and Free pricing.

Share your availability and stop the back-and-forth scheduling emails
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | freeblocksapp.com | knowt.com |
| Pricing Model | Freemium | Free |
| Monthly Visits | 0 (0) | 4.18M (4,183,953) |
| MoM Traffic Delta | 0 (0%) |
| +214.76K (+5.4%) |
| Primary Market & Share | 🌐 Global (—) | 🇺🇸 United States (69.6%) |
|---|
| Direct Visits / mo | 0 | 2.74M |
|---|
| User Rating | 4 | 4.3 |
|---|
| Supported Platforms | Website | Website |
|---|

Share your availability and stop the back-and-forth scheduling emails
Connects to your primary Google Calendar to detect busy periods and generate accurate free-time blocks automatically.
Publish a link where clients and colleagues can see your openings and book a slot themselves, removing email back-and-forth.
Share availability and schedule from inside Slack, Gmail and the Google Workspace Marketplace without switching tools.
Grab your availability blocks while browsing and drop them straight into an email or message.
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.

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

AI study platform converting course materials into practice questions and flashcards, but with a simpler feature set.
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
AI study platform converting course materials into practice questions and flashcards, but with a simpler feature set.