ReadDocs vs MostlyAI vs Perplexity AI vs PDF.ai

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

Your tool
ReadDocs
vs
Competitor 1
MostlyAI
Competitor 2
Perplexity AI
Competitor 3
PDF.ai
Compare
4 tools · best value per row highlighted
Your tool 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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Competitor MostlyAI
mostly.ai
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Competitor Perplexity AI
perplexity.ai
Search that gives answers instead of links
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Competitor PDF.ai
pdf.ai
PDF.ai lets you chat with any PDF: ask questions, get summaries and find answers inside the document.
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Traffic estimated monthly website traffic
Monthly visits
744visits/mo
43.5Kvisits/mo
95.2Mvisits/mo
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MoM change
▲ 141.6%
▼ 22.5%
▼ 8.2%
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6-month growth
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-35.7%
-42.9%
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Global rank web
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#791,007
#446
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Avg. last 3 months
384
55.6K
104.9M
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Bounce rate lower is better
39%
39%
33%
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Pages / visit
1.1
1.8
3.6
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Visit duration
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22s
4m 18s
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Traffic sources
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● Direct 94% · ● Referral 4%
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ReadDocsMostlyAIPerplexity AIPDF.ai
047.3M94.5M141.8M189MReadDocs · 101ReadDocs · 308ReadDocs · 744MostlyAI · 76.8KMostlyAI · 88.7KMostlyAI · 87.8KMostlyAI · 67.7KMostlyAI · 61.8KMostlyAI · 56.7KMostlyAI · 67.3KMostlyAI · 56.1KMostlyAI · 43.5KPerplexity AI · 189MPerplexity AI · 179.6MPerplexity AI · 170.1MPerplexity AI · 153.8MPerplexity AI · 166.8MPerplexity AI · 154.9MPerplexity AI · 138.1MPerplexity AI · 115.8MPerplexity AI · 103.8MPerplexity AI · 95.2M1001K10K100K1M10M100M1BReadDocs · 101ReadDocs · 308ReadDocs · 744MostlyAI · 76.8KMostlyAI · 88.7KMostlyAI · 87.8KMostlyAI · 67.7KMostlyAI · 61.8KMostlyAI · 56.7KMostlyAI · 67.3KMostlyAI · 56.1KMostlyAI · 43.5KPerplexity AI · 189MPerplexity AI · 179.6MPerplexity AI · 170.1MPerplexity AI · 153.8MPerplexity AI · 166.8MPerplexity AI · 154.9MPerplexity AI · 138.1MPerplexity AI · 115.8MPerplexity AI · 103.8MPerplexity AI · 95.2MNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Free
Freemium
Freemium
Starting price
Free tier
Free
$20per month · free tier available
$49per month · free tier available
Free tier
Free trial
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API access
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Plans
Free FreePro £9.99/moBusiness £29/mo
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Free FreeStarter $49/moPro $99/moScale $249/mo+1 more
Capabilities input → output
Input
TextImagesDocuments
TextData
DocumentsImagesTextCode
TextDocuments
Output
Text
Data
CodeText
TextData
Skill level
Beginner-friendly
Advanced
Beginner-friendly
Beginner-friendly
Categories
Productivity & OfficeWriting & ContentAI PDFAI Summarizer
Development & CodeResearch & AnalyticsAI Developer ToolsAI For Data Analytics
Chatbots & CompanionsEducation & LearningLifestyle & EntertainmentProductivity & Office+13 more
Productivity & OfficeWriting & ContentAI Document ExtractionAI PDF+1 more
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
13
6
10
10
Summarizing
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PDF summaries
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Document summarization
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Interactive PDF processing
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PDF analysis
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OCR
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AI search
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Document chat
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Document data extraction
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Document q a
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Document summaries
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PDFs
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Research
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Search engine
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Synthetic data
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APIs
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Chatbots
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Data analysis
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Data extraction
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Document processing
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Official documents q a
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Research papers
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Summaries
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Data anonymization
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Data privacy compliance
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Data science
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Developer tools
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Homework assistance
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Literature reviews
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Meeting summaries
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
▲ 3
▲ 0
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
0
1
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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.