Knowt records 4,183,953 monthly visits with +5.4% month-over-month growth and Free pricing. Synthesis Tutor records 130,472 monthly visits with -8.7% growth and Free Trial, Paid pricing.
Free AI flashcard and study tools for students
A patient, adaptive AI math tutor that grows with your child from counting to algebraic thinking.
| Dimension / Metric | | |
|---|---|---|
| Official Domain | knowt.com | synthesis.com |
| Pricing Model | Free | Free Trial, Paid |
| Monthly Visits | 4.18M (4,183,953) | 130.47K (130,472) |
| MoM Traffic Delta | +214.76K (+5.4%) | -12.47K (-8.7%) |
| Primary Market & Share | 🇺🇸 United States (69.6%) | 🇺🇸 United States (31.2%) |
| Direct Visits / mo | 2.74M | 82.7K |
| User Rating | 4.3 | 4.3 |
| 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.
A patient, adaptive AI math tutor that grows with your child from counting to algebraic thinking.
Lessons react to each answer, so the tutor slows down, re-explains, or moves ahead based on what the child actually understands.
Counting and cardinality, the four operations, fractions, and algebraic thinking are woven into a single progression with a visible lesson map.
Short, gamified problem sets and hands-on screen interactions keep young learners engaged and let them read less and play more.
Session summaries and weekly progress emails show what was practised, where mistakes clustered, and what comes next.
Massive library of shared academic notes paired with AI study tools, but less focused on flashcard creation.
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.
Gamified AI study application converting notes into flashcards and quizzes, but with a more playful interface.
Your personal AI tutor for every subject, from notes to exam day.
SpecialistComprehensive student study platform specialized in solving complex homework and exam prediction, but less focused on flashcards.
SpecialistComprehensive student study platform specialized in solving complex homework and exam prediction, but less focused on flashcards.
AI math solver that explains every step and animates the solution
Interactive AI learning platform turning course materials into flashcards and quizzes, but with more video explanations.
Interactive AI learning platform turning course materials into flashcards and quizzes, but with more video explanations.
AI-powered A Level and GCSE courses with a top-grades-or-refund guarantee
Converts notes and PDFs into interactive flashcards and audio podcasts, but less established brand presence.
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.
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.
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 learning assistant converting lectures and documents into study guides and flashcards, but less free-tier friendly.
AI homework help and visual courses that explain the why
AI homework help and visual courses that explain the why
