Apodex records 9,348 monthly visits with -87.3% month-over-month growth and Freemium pricing. ChatPDF records 1,044,477 monthly visits with -3.7% growth and Freemium pricing.
Deep-research AI that verifies every reasoning step before it answers
Chat with any PDF, video, or website and get cited answers in seconds
| Dimension / Metric | | |
|---|---|---|
| Official Domain | apodex.ai | chatpdf.com |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 9.35K (9,348) | 1.04M (1,044,477) |
| MoM Traffic Delta | -64.17K (-87.3%) | -40.47K (-3.7%) |
| Primary Market & Share | 🇺🇸 United States (81.8%) | 🇺🇸 United States (9.6%) |
| Direct Visits / mo | 4.64K | 457.79K |
| User Rating | 4.2 | 4.2 |
| Supported Platforms | Website | Website |
Deep-research AI that verifies every reasoning step before it answers
See the intermediate steps and checks behind a conclusion, so a brief can be audited rather than taken on faith.
Claims are tied to sources inside the generated brief, making follow-up verification straightforward.
Fork a completed inquiry to explore a sub-question or alternative angle while keeping the original reasoning intact.
Saved inquiries are searchable in full text, so prior research becomes a reusable knowledge base.
Chat with any PDF, video, or website and get cited answers in seconds
Every response is anchored to your source document with clickable citations that scroll to the exact passage, so verification takes seconds instead of page-by-page searching.
Organize documents into folders and query many files in a single conversation to compare arguments, cross-reference findings, or study a whole syllabus at once.
Condense long papers, reports, and contracts into key takeaways, and translate or query documents in any language — including mixing a source language with a different question language.
Generate flashcards and slide decks from your material, and use the built-in AI writer and AI detector for drafting and checking academic text.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
Moonshot AI's long-context assistant for research, coding, and agentic work
A free, AI-powered academic search engine for 240M+ papers across every scientific field
A free, AI-powered academic search engine for 240M+ papers across every scientific field
Computational knowledge engine for expert answers
Free / Open-sourceCompletely free PDF reading and editing tool with AI assistant, though basic compared to dedicated platforms.
Free AI-powered PDF editor, converter and reader for every device
Free AI-powered PDF editor, converter and reader for every device
AI-assisted systematic review software for screening, extraction, and evidence synthesis at scale
AI-assisted systematic review software for screening, extraction, and evidence synthesis at scale
Combines full desktop PDF editing software with AI chat, but requires software installation for full features.
AI answers grounded in 300M+ scholarly full texts
AI answers grounded in 300M+ scholarly full texts
Domain-specific AI agents for innovation, R&D, and intellectual property
Domain-specific AI agents for innovation, R&D, and intellectual property
Includes robust developer APIs for custom document workflows, but free tier limits document page counts.
