kitio.aiChatPDF vs PDF.ai
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. ChatPDF starts at See pricing page and PDF.ai starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Chat with PDFs
- Page citations
- Multi-file folders
- Multilingual support
- API access
- PDF chat
- Source highlighting
- Summaries
- Chrome extension
- API
| Feature | ChatPDF | PDF.ai |
|---|---|---|
| Best for | Upload a PDF and ask questions about it in a chat | Chat with any PDF and get answers linked to the source page |
| Category | Productivity | Productivity |
| Pricing model | Freemium | Freemium |
| Starting price | See pricing page | See pricing page |
| Free plan | Yes | Yes |
| Made by | ChatPDF | PDF.ai |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
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Pricing compared
ChatPDF starts at See pricing page and PDF.ai starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
ChatPDF
- Very simple to use
- Cites page numbers
- Free tier to start
- Free plan limits pages and questions
- Struggles with complex tables
PDF.ai
- Clear source links
- Simple interface
- API for developers
- Free plan has tight limits
- Few collaboration tools
Which one should you choose?
Choose ChatPDF if you want:
- Very simple to use
- Cites page numbers
- Free tier to start
Watch out: free plan limits pages and questions.
Choose PDF.ai if you want:
- Clear source links
- Simple interface
- API for developers
Watch out: free plan has tight limits.
ChatPDF vs PDF.ai FAQ
What is the difference between ChatPDF and PDF.ai?
ChatPDF: Upload a PDF and ask questions about it in a chat. PDF.ai: Chat with any PDF and get answers linked to the source page. Both are productivity tools.
Is ChatPDF or PDF.ai cheaper?
ChatPDF starts at See pricing page and PDF.ai starts at See pricing page. Check both pricing pages for current plans.
Do ChatPDF and PDF.ai have free plans?
ChatPDF: Yes. PDF.ai: Yes.
Who makes ChatPDF?
ChatPDF is made by ChatPDF.
Who makes PDF.ai?
PDF.ai is made by PDF.ai.
Which should I choose, ChatPDF or PDF.ai?
Choose ChatPDF if you value very simple to use and cites page numbers. Choose PDF.ai if you value clear source links and simple interface.