
Offers deeper conversational reasoning and coding agents, but lacks Perplexity's dedicated inline citation-first search layout.
#1Perplexity records 88,310,223 monthly visits with -3.7% month-over-month growth and Freemium pricing. Prepform records 0 monthly visits with 0% growth and Freemium pricing.

Adaptive test prep that tells you what to study, how long, and when you have mastered it.
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | perplexity.ai | prepform.com |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 88.31M (88,310,223) | 0 (0) |
| MoM Traffic Delta | -3.39M (-3.7%) |
| 0 (0%) |
| Primary Market & Share | 🇺🇸 United States (25.5%) | 🌐 Global (—) |
|---|
| Direct Visits / mo | 63.32M | 0 |
|---|
| User Rating | 4.7 | 4.1 |
|---|
| 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.

Adaptive test prep that tells you what to study, how long, and when you have mastered it.
The Blend AI engine recommends exactly what to study, how long to spend on it, and when you have genuinely mastered a topic based on your own performance data.
Machine learning and spaced repetition decide which questions and mistakes to bring back, and at what interval, so review lands when it is most useful.
Charts, score prediction, and performance breakdowns expose the topics and question types where you are losing points.
Work through thousands of questions modeled on real exams, with immediate feedback and explanations that reinforce core concepts.

Offers deeper conversational reasoning and coding agents, but lacks Perplexity's dedicated inline citation-first search layout.
#1
Leverages Google's vast search index for real-time answers, but offers a standard chat interface rather than deep research feeds.
#2Provides 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.

Delivers agentic multi-source research and page generation, but can feel more cluttered than Perplexity's clean answer engine.

SpecialistOffers a comprehensive free index of academic literature, but lacks conversational chat synthesis for general web queries.

SpecialistLearn to code free with hands-on lessons and instant playgrounds

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.
SpecialistAll-in-one IB and MYP exam prep with an AI study partner
AI-native enterprise skills management and learning platform
Study smarter for IELTS, TOEIC and HSK with AI speaking and writing rooms
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.
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.
Delivers agentic multi-source research and page generation, but can feel more cluttered than Perplexity's clean answer engine.
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.
Combines privacy-focused web search with AI summarization, though it requires a paid subscription for full access.
Study smarter for IELTS, TOEIC and HSK with AI speaking and writing rooms