ChatPDF vs LightPDF vs AI PDF Reader vs ReadDocs

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

Your tool
ChatPDF
vs
Competitor 1
LightPDF
Competitor 2
APAI PDF Reader
Competitor 3
ReadDocs
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 LightPDF
lightpdf.com
LightPDF AI for Docs is an online tool that utilizes artificial intelligence to summarize and extract insights from uploaded PDF, Word, Excel, and PPT documents. With multi-platform availability and s
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Competitor APAI PDF Reader
aipdfreader.net
Upload a PDF and get a summary in seconds
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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
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Traffic estimated monthly website traffic
Monthly visits
—
1.8Mvisits/mo
4.1Kvisits/mo
744visits/mo
MoM change
—
▲ 1.0%
▲ 324.1%
▲ 141.6%
6-month growth
—
-4.4%
—
—
Global rank web
—
#34,433
#7,244,900
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Avg. last 3 months
—
1.7M
1.7K
384
Bounce rate lower is better
—
51%
0%
39%
Pages / visit
—
2.3
—
1.1
Visit duration
—
1m 31s
—
—
Traffic sources
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● Direct 88% · ● Referral 10%
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—
ChatPDFLightPDFAI PDF ReaderReadDocs
0477.3K954.5K1.4M1.9MLightPDF · 1.6MLightPDF · 1.6MLightPDF · 1.9MLightPDF · 1.7MLightPDF · 1.9MLightPDF · 1.9MLightPDF · 1.8MLightPDF · 1.5MLightPDF · 1.8MLightPDF · 1.8MAI PDF Reader · 1.2KAI PDF Reader · 294AI PDF Reader · 2.5KAI PDF Reader · 977AI PDF Reader · 4.1KReadDocs · 101ReadDocs · 308ReadDocs · 7441001K10K100K1M10MLightPDF · 1.6MLightPDF · 1.6MLightPDF · 1.9MLightPDF · 1.7MLightPDF · 1.9MLightPDF · 1.9MLightPDF · 1.8MLightPDF · 1.5MLightPDF · 1.8MLightPDF · 1.8MAI PDF Reader · 1.2KAI PDF Reader · 294AI PDF Reader · 2.5KAI PDF Reader · 977AI PDF Reader · 4.1KReadDocs · 101ReadDocs · 308ReadDocs · 744Nov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Free
Freemium
Free
Freemium
Starting price
Free
$1.33per month · free tier available
Free
Free tier
Free tier
Free trial
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–
–
API access
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–
–
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Plans
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Free FreeMonthly $5.99/moYearly $15.99/yrLifetime $39.99
Free Free
Free FreePro £9.99/moBusiness £29/mo
Capabilities input → output
Input
DocumentsTextWeb pages
DocumentsWeb pages
Documents
DocumentsImagesText
Output
Text
Text
Text
Text
Skill level
Beginner-friendly
Beginner-friendly
Beginner-friendly
Beginner-friendly
Categories
Education & LearningProductivity & OfficeResearch & AnalyticsWriting & Content+4 more
Productivity & OfficeWriting & ContentAI Document ExtractionAI PDF+1 more
Productivity & OfficeWriting & ContentAI PDFAI Summarizer
Productivity & OfficeWriting & ContentAI PDFAI Summarizer
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
1
9
3
4
Summarizing
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Document summarization
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PDF analysis
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OCR
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–
Data extraction
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–
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Document data extraction
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–
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PDFs
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–
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Text extraction
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–
–
Translations
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–
–
Document processing
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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.