Perplexity records 88,310,223 monthly visits with -3.7% month-over-month growth and Freemium pricing. Rayyan records 1,116,437 monthly visits with +7.9% growth and Freemium pricing.
Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
AI-assisted systematic review software for screening, extraction, and evidence synthesis at scale
| Dimension / Metric | ||
|---|---|---|
| Official Domain | perplexity.ai | rayyan.ai |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 88.31M (88,310,223) | 1.12M (1,116,437) |
| MoM Traffic Delta | -3.39M (-3.7%) | +81.92K (+7.9%) |
| Primary Market & Share | 🇺🇸 United States (25.5%) | 🇺🇸 United States (18%) |
| Direct Visits / mo | 63.32M | 677.88K |
| User Rating | 4.7 | 4.5 |
| Supported Platforms | Website | Website |
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.
AI-assisted systematic review software for screening, extraction, and evidence synthesis at scale
The Systematic Auto-Resolver deduplicates up to 200,000 references using your own inclusion and exclusion protocol with one click.
ResearchPilot delivers zero-shot relevance ratings, an AI Analyzer, an AI Reviewer, and auto-extraction to speed up search, screening, and data capture.
Work through title, abstract, and full-text screening with inclusion and exclusion tagging, conflict resolution, and blinded reviewer modes.
Capture structured study data with configurable extraction fields, apply PICO frameworks, and export results with auto-generated PRISMA diagrams.
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.
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.
Free / Open-sourceProvides a completely free and open academic search database, but lacks collaborative literature review screening tools.
Free / Open-sourceProvides a completely free and open academic search database, but lacks collaborative literature review screening tools.
SpecialistGreat for finding scientific agreement and evidence-backed answers, but lacks dedicated screening queues and systematic review extraction forms.
SpecialistGreat for finding scientific agreement and evidence-backed answers, but lacks dedicated screening queues and systematic review extraction forms.
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.
SpecialistExcellent for reading, chatting with, and summarizing individual papers, but less structured for multi-reviewer systematic review screening.
SpecialistExcellent for reading, chatting with, and summarizing individual papers, but less structured for multi-reviewer systematic review screening.
Stronger automated data extraction and evidence synthesis from papers, but less focused on collaborative title and abstract screening workflows.
Stronger automated data extraction and evidence synthesis from papers, but less focused on collaborative title and abstract screening workflows.
SpecialistOffers powerful citation analysis and smart citation metrics, but is less tailored for full PRISMA systematic review workflows.
SpecialistOffers powerful citation analysis and smart citation metrics, but is less tailored for full PRISMA systematic review workflows.
SpecialistVisualizes citation networks and paper relationships wonderfully, but lacks Rayyan's screening, tagging, and exclusion tracking features.
SpecialistVisualizes citation networks and paper relationships wonderfully, but lacks Rayyan's screening, tagging, and exclusion tracking features.
