Comparison

STATS™ Mobile vs ChatPDF

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

STATS™ Mobile

This application offers essential statistical calculators for marketing researchers and students. It provides tools for summary statistics, sample size determination, standard error calculations, and significance testing, with clear explanations of formulas.

Highlights
  • Summary statistics for CSV files
  • Sample size determination
  • Standard error of proportion
  • Significance testing
  • Formula explanations
Features
Read full description

STATS™ Mobile is a free, easy-to-use application providing simple statistical calculators for marketing researchers. Functions and calculators provided by this app include: • Summary statistics for a CSV data file • Sample size determination • Standard error of a proportion • Significance testing Students may find this app useful as we clearly present and describe all of the tests and formulas used in this app.

About

ChatPDF

This AI-powered tool allows you to ask questions and get summaries directly from your PDF documents. It supports multiple files, OCR, and multilingual interactions, making complex information easily accessible.

Highlights
  • Instant answers from PDFs
  • Quick document summaries
  • Chat with multiple PDFs
  • OCR for scanned documents
  • Multilingual support
  • Cross-device access
Features
Read full description

ChatPDF lets you ask questions, request summaries, or quickly find the information you need—powered by advanced AI that understands your documents. Simply upload your PDF and start chatting. Ideal for students, researchers, and professionals, ChatPDF helps you effortlessly grasp complex research papers, academic articles, or any document you care about. Key Features: • Instant Answers: Ask questions directly to your PDFs and receive accurate responses based entirely on your document's content. • Quick Summaries: Save time and boost your understanding with concise, clear summaries of lengthy texts. • Multi-PDF Chat: Manage multiple documents seamlessly by chatting with several PDFs at once. • OCR Support: Easily extract text from scanned documents or images, making even printed PDFs fully searchable. • Multilingual Support: Engage with your documents in any language, simplifying global research and collaboration. • Robust Data Security: Your privacy matters. ChatPDF keeps your documents confidential with advanced data protection measures. • Cross-Device Access: ChatPDF runs smoothly on phones, tablets, and desktops, providing seamless document interactions wherever you are. • Trusted by Experts: Used and trusted by researchers from renowned institutions such as Stanford and Harvard for reliable, swift document analysis. • Multiple File Formats: Beyond PDFs, ChatPDF supports a variety of file formats, giving you flexible document management options. https://chat-pdf.notion.site/ChatPDF-Terms-of-Service-6a422751d9b74ad8893dea50fd970270ChatPDF is your essential tool for smarter document engagement. Whether you're studying, preparing presentations, or simply trying to make sense of complex material, ChatPDF turns your documents into clear, insightful conversations. Download now and revolutionize the way you work with PDFs! Terms of service & privacy policy: https://chat-pdf.notion.site/ChatPDF-Privacy-Policy-45fa3cf8bac8483896eb09b108f0c0f2 https://chat-pdf.notion.site/ChatPDF-Terms-of-Service-6a422751d9b74ad8893dea50fd970270

Screenshots

STATS™ Mobile4 screens
ChatPDF3 screens

Verdict

The call

The clearest difference is in-app purchases: STATS™ Mobile at none against ChatPDF's 2. STATS™ Mobile also leads on ads (none vs shown) and rating (5.0 vs 4.6). ChatPDF's advantage is update cadence (every 4 days vs every 6 weeks) and ratings volume (94 vs 1). On price, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ChatPDF sells 2 in-app purchases, starting at $14.99 per month. STATS™ Mobile asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

STATS™ Mobile holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: ChatPDF has 94 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

STATS™ Mobile ships an update every 6 weeks, ChatPDF every 4 days. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.

Scorecard6 real differences · 4 level
STATS™ Mobile versus ChatPDF: the parameters behind the verdict, then further details
ParameterSTATS™ MobileChatPDF
PriceFreeFree
Rating5.0 (1 ratings) — better4.6 (94 ratings)
Positive reviews—0.0% of reviews
Number of ratings194 — better
Update frequencyEvery 6 weeksEvery 4 days — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.1 — better15.6
Further details — not scored
Size30 MB41 MB
Age rating4+4+
DeveloperDecision AnalystChatPDF GmbH

Customer experience

STATS™ Mobile

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

ChatPDF

All ratings92 ratings
Positive89.1%
Neutral1.1%
Negative9.8%
Written reviews5 reviews
Positive0.0%
Neutral20.0%
Negative80.0%

In-app purchases

None

STATS™ Mobile

No in-app purchases

2 purchases

ChatPDF

Subscriptions2
  • Monthly Plus Subscription$14.991 Month
  • ChatPDF Yearly Plus Plan$89.991 Year

Questions

Is STATS™ Mobile free?
STATS™ Mobile is free to download, with no in-app purchases.
Is ChatPDF free?
ChatPDF is free to download, with in-app purchases available.
Which has better reviews, STATS™ Mobile or ChatPDF?
STATS™ Mobile is rated higher. STATS™ Mobile averages 5.0 out of 5 from 1 ratings, while ChatPDF averages 4.6 from 94 ratings.
Do STATS™ Mobile or ChatPDF have ads?
ChatPDF shows ads; STATS™ Mobile does not.
Which is updated more often, STATS™ Mobile or ChatPDF?
STATS™ Mobile ships an update every 6 weeks, and ChatPDF every 4 days. Most recently, STATS™ Mobile was updated on October 29, 2026 and ChatPDF on October 30, 2026.

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