ChatPDF vs Lectura vs Linnk AI: Research Assistant, Summarizer, Translator vs Free PDF Translate
Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.
Your tool
ChatPDF
vs ChatPDF
Competitor 1
Lectura
Lectura
Competitor 2
Linnk AI: Research Assistant, Summarizer, Translator
Linnk AI: Research Assistant, Summarizer, Translator
Competitor 3
Free PDF Translate
Free PDF TranslateCompare
4 tools · best value per row highlighted
Your tool
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
Free PDF Translate
Free PDF Translate
pdftranslator.org
Translating PDF files often destroys the original formatting, turning carefully structured documents into messy text blocks
Traffic estimated monthly website traffic
Monthly visits
—
1Kvisits/mo
452.2Kvisits/mo
111.4Kvisits/mo
MoM change
—
▼ 29.0%
▲ 2.8%
▲ 23.9%
6-month growth
—
—
-2.1%
+181.6%
Global rank web
—
#12,243,847
#127,460
#445,067
Avg. last 3 months
—
854
445.7K
87.5K
Bounce rate lower is better
—
38%
48%
42%
Pages / visit
—
1.9
1.9
2.0
Visit duration
—
53s
48s
1m 57s
Traffic sources
—
—
● Direct 66% · ● Referral 34%
● Direct 85% · ● Referral 15%
ChatPDFLecturaLinnk AI: Research Assistant, Summarizer, TranslatorFree PDF Translate
Pricing
Model
Free
Freemium
Freemium
Free
Starting price
Free
$6per month · free tier available
$8.2per month
Free
Free tier
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Free trial
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–
–
–
API access
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–
–
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Plans
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—
Essential $8.20/moProfessional $9.90/moPremium $19.90/moVolume $39.90/mo
Free Free
Capabilities input → output
Input
DocumentsTextWeb pages
Web pagesVideo
DocumentsImagesWeb pages
Documents
Output
Text
Text
DocumentsText
Documents
Skill level
Beginner-friendly
Intermediate
Beginner-friendly
Beginner-friendly
Categories
Tasks what each tool can do · 0 shared · core partial
Tasks covered
12
8
9
9
Summarizing
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Translations
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Document translation
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PDF translations
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Video summaries
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Document summarization
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Research
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–
Interactive PDF processing
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–
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PDF analysis
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PDFs
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YouTube summaries
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Academic translations
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Chrome extensions
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Legal translations
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Mind maps
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–
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OCR
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–
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PDF summaries
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Papers translation
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–
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Quiz generation
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Technical translations
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Video q a
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YouTube transcription
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Academic research
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Book translation
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Document reading
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Homework assistance
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Knowledge graphs
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Summaries
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Tutoring
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–
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YouTube videos
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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
0
0
Prompts
0
0
0
0
Verified listing
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–
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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.