Comparison

PDF Reader vs PDFai

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

Head to head
About

PDF Reader

Features
Read full description

PDF to Word Converter & Editor is your all-in-one document management solution. Easily convert, view, edit, scan, sign, and merge PDF files on your Android device with speed and precision. Whether you need to convert contracts into editable Word documents, extract spreadsheets from invoices, or digitize paper notes, our app preserves your original formatting, fonts, and layouts seamlessly. POWERFUL DOCUMENT CONVERSION - PDF to Word Converter: Convert PDF to editable Word (DOC, DOCX) files while preserving original layouts and tables. - PDF to Excel Converter: Extract data and tables from PDF files into organized Excel spreadsheets (XLS, XLSX). - PDF to PowerPoint Converter: Transform PDF presentations into editable PowerPoint slides (PPT, PPTX). - Office to PDF: Convert Word, Excel, and PowerPoint files directly into secure PDF format. - Image to PDF & PDF to Image: Turn JPG and PNG photos into PDF, or extract high-resolution images from documents. BUILT-IN DOCUMENT SCANNER - Portable Camera Scanner: Scan physical receipts, notes, certificates, and multipage documents directly into clean PDFs. - Auto Edge Detection: Smart perspective correction and auto-cropping for sharp, professional scans. - Document Filters: Enhance legibility with black-and-white, color, and grayscale scan filters. FULL-FEATURED PDF READER & VIEWER - Fast Document Viewing: Open and read large PDF files smoothly without lag. - Search & Navigate: Instantly find keywords inside documents and jump to specific pages. - Comfortable Reading Modes: Choose between continuous vertical scroll, page-by-page view, and night mode for eye comfort. FILL & SIGN PDF FORMS - Digital Signature: Create and save your custom electronic signature with your finger or stylus. - Contract Signing: Sign business contracts, tax documents, and lease agreements anywhere, anytime. - Form Filling: Easily type text, check boxes, and fill out PDF forms on the go. ORGANIZE, MERGE & MANAGE - Merge PDF Files: Combine multiple PDF files and receipts into a single organized document. - Secure File Manager: Rename, delete, favorite, and organize your files with ease. - Quick Sharing: Share converted Word documents, Excel sheets, and PDFs via email, cloud drives, or messaging apps. PRIVACY & SECURITY Your privacy matters. All your document processing and file management are handled securely on your device, ensuring your sensitive data remains confidential. Download PDF to Word Converter & Editor today and streamline your document workflow.

About

PDFai

Features
Read full description

PDFai turns any PDF into a conversation. Open a document, ask a question and get a clear answer or a bullet-point summary in seconds. Then convert it to Word, sign it, merge it or compress it, all in one app. CHAT WITH YOUR PDF • Ask questions about contracts, reports, lecture notes and research papers • Get short bullet-point summaries of long documents • Ask about a photo or screenshot, too • Answers come in the language you write in CONVERT • PDF to Word (.docx) and Excel (.xlsx), built from the document's text • PDF to images (PNG) and HTML • Photos and images to PDF, text or HTML to PDF ORGANIZE & PROTECT • Merge several PDFs into one, split out a page range, compress large files • Draw your signature and place it on any page • Add a password (AES-256) or remove one you know • OCR: pull the text out of scanned PDFs OPEN FROM ANYWHERE • Open PDFs from the Files app, iCloud Drive and Google Drive PDFai PRO AI chat and signing are part of PDFai Pro. Pro also unlocks unlimited merge, split, compress, OCR and password tools and removes ads. Converting PDFs and creating PDFs from photos is free. Subscriptions (weekly, monthly or yearly) are charged to your Apple ID and renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Terms of Use (EULA): https://kolekciapps.com/pdfai-terms Privacy Policy: https://kolekciapps.com/pdfai-privacy ——— Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://kolekciapps.com/privacy

Screenshots

PDF Reader4 screens
PDFai4 screens

Verdict

The call

The clearest difference is in-app purchases: PDF Reader at none against PDFai's 3. PDFai's advantage is update cadence (fortnightly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. PDFai sells 3 in-app purchases, starting at $4.99 per 7 days. PDF Reader asks for nothing beyond the download.

UpkeepUpdate frequency

PDF Reader ships an update every 2 months, PDFai fortnightly. The most recent releases landed on October 31, 2026 and November 4, 2026 respectively.

Scorecard2 real differences Ā· 4 level
PDF Reader versus PDFai: the parameters behind the verdict, then further details
ParameterPDF ReaderPDFai
PriceFreeFree
Update frequencyEvery 2 monthsFortnightly — better
AdsYesYes
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.515.5
Further details — not scored
Size121 MB96 MB
Age rating4+4+
DeveloperNguyen GiapKolekciApps LLC

In-app purchases

None

PDF Reader

No in-app purchases

3 purchases

PDFai

Subscriptions3
  • Weekly$4.997 Days
  • Monthly$12.991 Month
  • Yearly$99.991 Year

Questions

Is PDF Reader free?
PDF Reader is free to download, with no in-app purchases.
Is PDFai free?
PDFai is free to download, with in-app purchases available.
Do PDF Reader or PDFai have ads?
Both PDF Reader and PDFai show ads.
Which is updated more often, PDF Reader or PDFai?
PDF Reader ships an update every 2 months, and PDFai fortnightly. Most recently, PDF Reader was updated on October 31, 2026 and PDFai on November 4, 2026.

Other comparisons