
Offers deeper conversational reasoning and coding agents, but lacks Perplexity's dedicated inline citation-first search layout.
#1Caktus AI records 47,736 monthly visits with -33.7% month-over-month growth and Freemium pricing. Perplexity records 88,310,223 monthly visits with -3.7% growth and Freemium pricing.

One AI study workspace with 25+ tools for essays, math, research and exam prep
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | caktus.ai | perplexity.ai |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 47.74K (47,736) | 88.31M (88,310,223) |
| MoM Traffic Delta |
| -24.29K (-33.7%) |
| -3.39M (-3.7%) |
| Primary Market & Share | 🇮🇪 Ireland (31.6%) | 🇺🇸 United States (25.5%) |
|---|
| Direct Visits / mo | 15.89K | 63.32M |
|---|
| User Rating | 4.1 | 4.7 |
|---|
| Supported Platforms | Website | Website |
|---|

One AI study workspace with 25+ tools for essays, math, research and exam prep
Generate structured academic essays in APA, MLA, Chicago or Harvard style, with verifiable sources pulled from scholarly databases and an editable first draft you can refine.
Math, physics, chemistry and biology assistants show the full working behind each answer, so the solution doubles as a study aid rather than just a final number.
Find papers, capture citation details, organize a bibliography, auto-cite URLs and export references in the format your assignment requires.
Convert notes or uploaded documents into study decks, auto-graded quizzes, Cornell-notes study guides and timed practice exams with AI feedback.
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.
#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.

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.
A friendly Vietnamese AI study assistant for homework, images and everyday questions

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


Your personal AI tutor for every subject, from notes to exam day.

Snap a homework question and get step-by-step AI answers

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.
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.
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.
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.