Saya vs ChatPDF vs ScienceOS vs YouMind
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
YouMind
YouMindCompare
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
Competitor
YouMind
YouMind
youmind.com
Saving materials from across the web, annotating them with personal insights, and then generating AI-powered analysis that actually reflects your thinking creates a different kind of knowledge work...
Traffic estimated monthly website traffic
Monthly visits
886visits/mo
—
64.9Kvisits/mo
1.3Mvisits/mo
MoM change
▲ 26.4%
—
▼ 6.2%
▼ 19.3%
6-month growth
-32.0%
—
+1.2%
+107.4%
Global rank web
#10,410,793
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#464,304
#33,948
Avg. last 3 months
1K
—
68.2K
1.3M
Bounce rate lower is better
34%
—
39%
50%
Pages / visit
1.0
—
3.7
3.5
Visit duration
—
—
1m 37s
2m 16s
Traffic sources
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● Direct 98% · ● Mail 2%
● Direct 84% · ● Referral 15%
SayaChatPDFScienceOSYouMind
Pricing
Model
Freemium
Free
Freemium
Freemium
Starting price
$19.99per month · free tier available
Free
€7.25per month · free tier available
$20per month · free tier available
Free tier
Free trial
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API access
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–
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Plans
Free Trial FreePro $19.99/mo
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Free FreeAngel €7.25/moTeam €6/moInstitution Custom
Free FreePro $20/moMax $100/mo
Capabilities input → output
Input
AudioWeb pagesDocuments
Web pagesTextDocuments
TextDocuments
AudioDocumentsTextWeb pagesVideo
Output
Text
Text
TextData
VideoTextSlidesAppsImages
Skill level
Beginner-friendly
Beginner-friendly
Intermediate
Beginner-friendly
Categories
Tasks what each tool can do · 2 shared · core partial
Tasks covered
12
12
8
7
Research
PDF analysis
Summarizing
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Research papers
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Academic research
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Document summarization
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Video summaries
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Interactive PDF processing
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PDFs
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Scientific q a
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Study assistance
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Citations
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Document chat
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Note taking
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PDF summaries
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PDF translations
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Scientific literature exploration
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YouTube summaries
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Document reading
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Homework assistance
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Knowledge bases
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Literature analysis
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Network diagrams
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Summaries
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Transcription
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Web research summarization
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Writing
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 0
▲ 1
Saves
0
0
0
0
Reviews
0
0
0
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.