Apollo AI records 0 monthly visits with -100% month-over-month growth and Freemium pricing. PDF.ai records 387,819 monthly visits with -5.5% growth and Freemium, Free Trial pricing.
AI research assistant for long PDFs, papers, and literature reviews
Chat with any PDF and get cited answers instantly
| Dimension / Metric | ||
|---|---|---|
| Official Domain | useapollo.app | pdf.ai |
| Pricing Model | Freemium | Freemium, Free Trial |
| Monthly Visits | 0 (0) | 387.82K (387,819) |
| MoM Traffic Delta | -434 (-100%) | -22.46K (-5.5%) |
| Primary Market & Share | 🌐 Global (—) | 🇧🇷 Brazil (11%) |
| Direct Visits / mo | 0 | 127.04K |
| User Rating | 4.2 | 4.2 |
| Supported Platforms | Website | Website |
AI research assistant for long PDFs, papers, and literature reviews
Upload papers and reports of hundreds of pages and get summaries, extracted findings, and specific answers in seconds without chunking the file yourself.
The assistant generates its own queries, gathers credible sources, cross-checks the information, and returns a report with citations and a reference list.
Draft literature reviews and produce formatted references in APA, MLA, Chicago, Harvard, and IEEE styles.
Turn research data into bar charts, line graphs, pie charts, and scatter plots ready to drop into a paper or presentation.
Chat with any PDF and get cited answers instantly
Ask questions in plain language and get answers drawn from your document, with citations back to the source passages.
Generate quick summaries and find specific answers in long reports, contracts and papers without reading every page.
Pull structured data and fields out of documents to reuse in spreadsheets, apps or other automations.
Use the API to parse documents, extract data and split PDFs programmatically inside your own workflows.
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
AI academic search engine for peer-reviewed science
SpecialistTailored specifically for reading and explaining academic literature, whereas PDF.ai handles a broader range of general business documents.
SpecialistTailored specifically for reading and explaining academic literature, whereas PDF.ai handles a broader range of general business documents.
Free / Open-sourceProvides a fully free PDF reader and editor with built-in AI tools, lacking some of PDF.ai's API features.
AI research assistant for evidence-based literature review and synthesis
Combines robust PDF editing and conversion tools with AI chat, though document analysis is slightly less specialized.
Combines robust PDF editing and conversion tools with AI chat, though document analysis is slightly less specialized.
The AI workspace where researchers read, write, and cite with every claim traceable to its source
The AI workspace where researchers read, write, and cite with every claim traceable to its source
Integrates AI summarization directly into a cross-platform desktop PDF editor, but lacks PDF.ai's standalone web-first focus.
Focuses purely on rapid conversational Q&A over PDF files, but lacks advanced document editing and developer APIs.
A proactive AI reading lens for papers, videos, and web pages
A proactive AI reading lens for papers, videos, and web pages
Free / Open-sourceTurn any document into AI-ready context with agentic parsing and extraction
Free / Open-sourceTurn any document into AI-ready context with agentic parsing and extraction
SpecialistAI document conversion for math, chemistry, tables and full PDFs
SpecialistAI document conversion for math, chemistry, tables and full PDFs
