Saya vs ChatPDF vs ScienceOS vs ScholarAI
Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.
Your tool
vs SSaya
Competitor 1
ChatPDF
ChatPDF
Competitor 2
ScienceOS
ScienceOS
Competitor 3
ScholarAI
ScholarAICompare
4 tools · best value per row highlighted
Competitor
ChatPDF
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.
Competitor
ScienceOS
ScienceOS
scienceos.ai
Researchers waste hours hunting through literature—piecing together fragments from different papers
Traffic estimated monthly website traffic
Monthly visits
886visits/mo
—
64.9Kvisits/mo
106.2Kvisits/mo
MoM change
▲ 26.4%
—
▼ 6.2%
▼ 21.7%
6-month growth
-32.0%
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+1.2%
-22.5%
Global rank web
#10,410,793
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#464,304
#323,702
Avg. last 3 months
1K
—
68.2K
124.1K
Bounce rate lower is better
34%
—
39%
37%
Pages / visit
1.0
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3.7
1.9
Visit duration
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1m 37s
28s
Traffic sources
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● Direct 98% · ● Mail 2%
● Direct 64% · ● Referral 36%
SayaChatPDFScienceOSScholarAI
Pricing
Model
Freemium
Free
Freemium
Freemium
Starting price
$19.99per month · free tier available
Free
€7.25per month · free tier available
$9.99per month · free tier available
Free tier
Free trial
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API access
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Plans
Free Trial FreePro $19.99/mo
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Free FreeAngel €7.25/moTeam €6/moInstitution Custom
Free CustomBasic $9.99/moPremium $18.99/moTeams Custom
Capabilities input → output
Input
AudioDocumentsWeb pages
DocumentsTextWeb pages
DocumentsText
DocumentsText
Output
Text
Text
DataText
Text
Skill level
Beginner-friendly
Beginner-friendly
Intermediate
Beginner-friendly
Categories
Tasks what each tool can do · 1 shared · core partial
Tasks covered
12
12
8
9
Research
PDF analysis
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Research papers
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Academic research
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Citations
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Summarizing
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Document summarization
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Academic citation
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Interactive PDF processing
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PDFs
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Research papers summaries
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Scientific q a
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Study assistance
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Citation formatting
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Document chat
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Literature reviews
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PDF summaries
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PDF translations
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Scientific literature exploration
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Video summaries
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YouTube summaries
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Document reading
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Homework assistance
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Literature analysis
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Network diagrams
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Research papers drafting
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Summaries
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Transcription
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Web research summarization
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
▲ 0
Saves
0
0
0
0
Reviews
0
0
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0
Prompts
0
0
0
0
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.