
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. Spike records 93,475 monthly visits with -26.6% growth and Freemium pricing.

AI-first email that turns your inbox into a chat-like workspace
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | knowt.com | spikenow.com |
| Pricing Model | Free | Freemium |
| Monthly Visits | 4.18M (4,183,953) | 93.48K (93,475) |
| MoM Traffic Delta | +214.76K (+5.4%) |
| -33.94K (-26.6%) |
| Primary Market & Share | 🇺🇸 United States (69.6%) | 🇺🇸 United States (30.1%) |
|---|
| Direct Visits / mo | 2.74M | 36.89K |
|---|
| User Rating | 4.3 | 4.2 |
|---|
| 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-first email that turns your inbox into a chat-like workspace
AI snapshots unread mail and long conversations so you can catch up in seconds, while priority inbox surfaces the messages that matter first.
Draft quick replies, contextual responses, and brainstormed messages with AI assistance directly inside the composer.
Threads are grouped by person like a messenger app, and every connected account lands in one inbox with file management and powerful search.
Shared inboxes, channels and groups, collaborative docs and notes, tasks, and one-click audio and video meetings all live inside your mail workspace.

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.

The AI productivity suite with agents, email, and docs that work wherever you do
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.

Collaborative inbox and email management for teams
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
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.
The AI productivity suite with agents, email, and docs that work wherever you do
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.
Collaborative inbox and email management for teams
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