ChatPDF vs UPDF vs ReadDocs vs Collate

Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.

Your tool
ChatPDF
vs
Competitor 1
UPDF
Competitor 2
ReadDocs
Competitor 3
Collate
Compare
4 tools · best value per row highlighted
Your tool ChatPDF
chatpdf.com
ChatPDF is a document question-answering app: upload a PDF, ask questions in plain language, and get answers with built-in citations that point back to the source passage.
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Competitor UPDF
pdfassistant.ai
PDFs that work the way you need them to
Make main Remove
Competitor ReadDocs
readdocs.co.uk
Upload a PDF contract and ReadDocs spits out a one-minute summary, bullet points, and answers to specific questions you ask
Make main Remove
Competitor Collate
collate.one
Collate is a free, offline PDF assistant designed for everyday learners, students, and professionals who want to take control of their PDFs. With Collate, you can: • Summarize PDFs: Turn lengthy doc
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
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28.7Kvisits/mo
744visits/mo
4.1Kvisits/mo
MoM change
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▼ 28.2%
▲ 141.6%
▼ 59.8%
6-month growth
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-27.5%
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-0.1%
Global rank web
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#984,401
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#4,822,608
Avg. last 3 months
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40.4K
384
8.9K
Bounce rate lower is better
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42%
39%
37%
Pages / visit
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2.1
1.1
1.3
Visit duration
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19s
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2s
Traffic sources
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● Direct 90% · ● Mail 10%
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ChatPDFUPDFReadDocsCollate
015.8K31.5K47.3K63KUPDF · 38.9KUPDF · 51.3KUPDF · 45.4KUPDF · 39.5KUPDF · 52.9KUPDF · 63KUPDF · 52.7KUPDF · 39.9KUPDF · 28.7KReadDocs · 101ReadDocs · 308ReadDocs · 744Collate · 10.2KCollate · 7.2KCollate · 5.3KCollate · 4.1KCollate · 6KCollate · 13.1KCollate · 12.4KCollate · 10.2KCollate · 4.1K1001K10K100KUPDF · 38.9KUPDF · 51.3KUPDF · 45.4KUPDF · 39.5KUPDF · 52.9KUPDF · 63KUPDF · 52.7KUPDF · 39.9KUPDF · 28.7KReadDocs · 101ReadDocs · 308ReadDocs · 744Collate · 10.2KCollate · 7.2KCollate · 5.3KCollate · 4.1KCollate · 6KCollate · 13.1KCollate · 12.4KCollate · 10.2KCollate · 4.1KNov '25DecJan '26FebMarAprMayJunJul
Pricing
Model
Free
Freemium
Freemium
Freemium
Starting price
Free
$9.99per month · free tier available
Free tier
$9.99per month · free tier available
Free tier
Free trial
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API access
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Plans
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Starter FreePlus $9.99/moPro $24.99/moBusiness $59.99/mo+1 more
Free FreePro £9.99/moBusiness £29/mo
Free Custom
Capabilities input → output
Input
DocumentsTextWeb pages
DocumentsText
DocumentsImagesText
Documents
Output
Text
DocumentsText
Text
Text
Skill level
Beginner-friendly
Intermediate
Beginner-friendly
Beginner-friendly
Categories
Education & LearningProductivity & OfficeResearch & AnalyticsWriting & Content+4 more
Productivity & OfficeAI Document ExtractionAI PDF
Productivity & OfficeWriting & ContentAI PDFAI Summarizer
Productivity & OfficeWriting & ContentAI PDFAI Summarizer
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
7
13
10
8
Document summarization
PDF summaries
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PDFs
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Summarizing
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Interactive PDF processing
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PDF analysis
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Summaries
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Document summaries
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PDF management
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Document scanning
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File conversion
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Homework assistance
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OCR
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Official documents q a
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Research
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Text extraction
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Academic research
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Document analysis
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Document data extraction
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Document reading
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Meeting summaries
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PDF compression
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PDF redaction
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 1
▲ 0
▲ 0
Saves
0
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Reviews
0
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Prompts
0
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Verified listing
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Traffic figures are third-party estimates for the tool's own domain; tools sharing a domain with a bigger product are not counted. Pricing is captured from each tool's site and may lag.