ChatPDF records 1,044,477 monthly visits with -3.7% month-over-month growth and Freemium pricing. Pinster AI records 0 monthly visits with — growth and Freemium pricing.
Chat with any PDF, video, or website and get cited answers in seconds
Save anything, and let AI tag, summarise and let you chat with it.
| Dimension / Metric | | |
|---|---|---|
| Official Domain | chatpdf.com | apps.apple.com |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 1.04M (1,044,477) | 0 (0) |
| MoM Traffic Delta | -40.47K (-3.7%) | 0 (—) |
| Primary Market & Share | 🇺🇸 United States (9.6%) | 🌐 Global (—) |
| Direct Visits / mo | 457.79K | 0 |
| User Rating | 4.2 | 4.4 |
| Supported Platforms | Website | App |
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.
Save anything, and let AI tag, summarise and let you chat with it.
When you save a link, document or image, Pinster analyses it and proposes folders and tags based on your existing categories.
Web pages, PDFs and articles are summarised so you can skim the key ideas without re-reading everything.
Ask questions and get answers drawn from your library of saved links and documents.
Scheduled daily, weekly or monthly wrap-ups of what you saved, available as text and as audio you can listen to.
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.
AI research platform for reading, understanding and writing scientific papers
AI research platform for reading, understanding and writing scientific papers
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
All-in-one online PDF editor with AI helpers for reading, summarizing, and generating documents
All-in-one online PDF editor with AI helpers for reading, summarizing, and generating documents
Combines full desktop PDF editing software with AI chat, but requires software installation for full features.
Translate, summarize, and understand documents in 154 languages without losing the layout
Translate, summarize, and understand documents in 154 languages without losing the layout
Free AI Summarizer for text, articles, URLs and images
Free AI Summarizer for text, articles, URLs and images
Includes robust developer APIs for custom document workflows, but free tier limits document page counts.
ADHD-friendly AI assistant for notes, email and tasks
ADHD-friendly AI assistant for notes, email and tasks
Your files, notes and meetings in one drive — with an AI that knows all of it.
Your files, notes and meetings in one drive — with an AI that knows all of it.
Strong multi-format document chat and form filling capabilities, but interface can feel slightly more cluttered.
Strong multi-format document chat and form filling capabilities, but interface can feel slightly more cluttered.
