PDF2Anki (Memo AI) records 1,225 monthly visits with -57.8% month-over-month growth and Freemium pricing. Perplexity records 88,310,223 monthly visits with -3.7% growth and Freemium pricing.
Turn study material into cited flashcards, notes, and practice tests
Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
| Dimension / Metric | ||
|---|---|---|
| Official Domain | pdf2-anki.com | perplexity.ai |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 1.23K (1,225) | 88.31M (88,310,223) |
| MoM Traffic Delta | -1.68K (-57.8%) | -3.39M (-3.7%) |
| Primary Market & Share | 🇮🇳 India (100%) | 🇺🇸 United States (25.5%) |
| Direct Visits / mo | 382 | 63.32M |
| User Rating | 4.4 | 4.7 |
| Supported Platforms | Website | Website |
Turn study material into cited flashcards, notes, and practice tests
Upload PDFs, slides, YouTube videos, websites, or raw text; the ingestion pipeline parses each source and connects concepts across your notebook.
Each generated card and explanation links back to the exact page or timestamp in your source material, which makes review far more trustworthy.
One upload can become flashcards, notes, an MCQ practice test, a mind map, a summary, or a narrated walkthrough depending on your goal.
Track Mode narrates dense documents, auto-flips pages, and runs comprehension checks in a conversational voice, with speech output in 32 languages.
Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
Executes multi-step iterative web and document research across hundreds of sources, cross-checking facts and generating structured, citation-backed analytical reports that can be exported as PDFs or shared as interactive Perplexity Pages.
Lets Pro and Max subscribers switch dynamically between Perplexity's in-house Sonar models and top external models (including Claude 4, o3-pro, and Gemini) or compare multi-model reasoning outputs side by side.
Provides dedicated project workspaces where users upload local PDFs, spreadsheets, and text files, configure custom assistant instructions, and run queries that combine private document retrieval with live internet search.
Extends Perplexity from passive Q&A into agentic execution, turning high-level user requests into completed workflows, multi-tab browser actions, and automated data synthesis via the Comet ecosystem.
Offers deeper conversational reasoning and coding agents, but lacks Perplexity's dedicated inline citation-first search layout.
Offers deeper conversational reasoning and coding agents, but lacks Perplexity's dedicated inline citation-first search layout.
Leverages Google's vast search index for real-time answers, but offers a standard chat interface rather than deep research feeds.
Leverages Google's vast search index for real-time answers, but offers a standard chat interface rather than deep research feeds.
Provides exceptional analytical depth and writing quality, but does not focus purely on web-sourced search summaries.
Provides exceptional analytical depth and writing quality, but does not focus purely on web-sourced search summaries.
Integrates real-time social data search for breaking news, but leans more toward casual chat than structured research.
Integrates real-time social data search for breaking news, but leans more toward casual chat than structured research.
Share and access study materials worldwide — with AI study tools built in
Share and access study materials worldwide — with AI study tools built in
Delivers agentic multi-source research and page generation, but can feel more cluttered than Perplexity's clean answer engine.
Delivers agentic multi-source research and page generation, but can feel more cluttered than Perplexity's clean answer engine.
AI flashcards that turn note dumps and PDFs into addictive quiz sessions
AI flashcards that turn note dumps and PDFs into addictive quiz sessions
SpecialistOffers a comprehensive free index of academic literature, but lacks conversational chat synthesis for general web queries.
SpecialistOffers a comprehensive free index of academic literature, but lacks conversational chat synthesis for general web queries.
SpecialistFocuses exclusively on peer-reviewed scientific papers for evidence-based answers, unlike Perplexity's broad general web search.
SpecialistFocuses exclusively on peer-reviewed scientific papers for evidence-based answers, unlike Perplexity's broad general web search.
Combines privacy-focused web search with AI summarization, though it requires a paid subscription for full access.
Combines privacy-focused web search with AI summarization, though it requires a paid subscription for full access.
Free AI flashcard and study tools for students
Free AI flashcard and study tools for students
AI study tools and a personal tutor built from your own course material
AI study tools and a personal tutor built from your own course material
