
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
ChatPDF records 1,044,477 monthly visits with -3.7% month-over-month growth and Freemium pricing. AIDojo records 0 monthly visits with — growth and Freemium pricing.

A native AI chat client for iPhone, iPad and Mac with voice and a personal knowledge base
| 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 | 3.8 |
| 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.

A native AI chat client for iPhone, iPad and Mac with voice and a personal knowledge base
Ask questions by typing or by speaking. Voice input is transcribed to text and replies can be read back aloud, which is handy when you are travelling or away from a keyboard.
Attach PDFs, EPUBs and plain text files to build a searchable personal library the assistant can draw on, with the option to hide individual items from retrieval.
Save reusable prompts, browse and organise conversation history, and tune parameters such as temperature for more precise or more creative answers.
Optional plugins such as web page and video summarisation pull in current information so answers are not limited to whatever the model learned during training.

OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
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.
Free / Open-sourceCompletely free PDF reading and editing tool with AI assistant, though basic compared to dedicated platforms.
All-in-one IB and MYP exam prep with an AI study partner

Chat with 30+ leading AI models in one clean, fast workspace
Chat with 30+ leading AI models in one clean, fast workspace

Free AI-powered PDF editor, converter and reader for every device
Free AI-powered PDF editor, converter and reader for every device

Combines full desktop PDF editing software with AI chat, but requires software installation for full features.
One subscription, many AI models — chat, search, analyze files and links
One subscription, many AI models — chat, search, analyze files and links

AI-powered knowledge base that turns documents into fast answers
Free / Open-sourceOwn your intelligence: a private AI assistant that runs entirely on your machine
Free / Open-sourceOwn your intelligence: a private AI assistant that runs entirely on your machine

Custom AI agents trained on your documentation and knowledge base
Custom AI agents trained on your documentation and knowledge base
Includes robust developer APIs for custom document workflows, but free tier limits document page counts.