Comparison

PDF Reader vs iDoc

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

Head to head
About

PDF Reader

Easily view PDF documents on your mobile device or tablet. Upload files via WiFi, open encrypted PDFs with a password, and enjoy adaptive screen sizing for comfortable reading. Protect your documents with app lock and gesture passwords.

Highlights
  • View PDF documents
  • WiFi file upload
  • Encrypted PDF support
  • Adaptive screen size
  • Read Word, Excel, PPT
  • App lock and gesture password
Features
Read full description

PDF Reader, Easy read PDF documents for Mobile and Pad . WiFi easy Upload PDF documents to the phone. Support to view encrypted PDF documents, long press the document to enter the password. Document adaptive screen size, easy to read. Support read word, excel, ppt and other format documents. APP lock, gesture password, protect privacy, protect document security.

About

iDoc

Features
Read full description

iDoc - PDF Reader and Viewer - An INTELLIGENT and OPTIMIZED application for office productivity No need to open your computer or use a web browser to read documents, as all file formats can be opened, read and viewed anytime, anywhere on your phone even offline, without the need for an internet connection. iDoc - PDF Reader and Viewer helps manage and read documents in all file formats: PDF, PPT, XLS, TXT and WORD, quickly and easily. iDoc is an excellent platform where everyone can improve work productivity and learning by uploading, downloading, and sharing documents with the community. Versatile and free document reader - Open and view documents from file manager in any format - Easily read multiple file types with simple gestures - Easily search for files with intelligent search system - Read documents, read file offline - Enjoy smooth file reading with smooth scrolling capabilities Efficient document management - Simple document management and organization - View Category list with various publicly uploaded documents - Move favorite documents to ""Add to Favorites"" for later reading Other features - Zoom in, zoom out PDF files - Easily select to access the popup list of document pages - Rename, delete, sort, and view file details with simple gestures - Easily share document files, PDF files, docx files, xlsx files, ppt files, txt files - Preview documents before deciding to download - Print documents through a connected printer - Easily bookmark and pin documents. Support for multiple formats, open all types of files - PDF file reader - Word file reader: DOC, DOCX, DOCS - Excel file reader: XLS, XLSX - Slide documents: PPT, PPTX, PPS, PPSX - Other Office 365 Word file reader: TXT, ODT, ZIP iDoc will provide you with the best experience with a document reader that can be used anytime, anywhere, simple and FREE! - Compatible with all types of devices, all types of documents - Saves battery and storage space - Fast loading speed - Documents are updated weekly - There is a user community sharing files that makes your life more productive - User-friendly interface, easy to use - Can be used without the Internet - Free to search, read, and download unlimited types of documents iDoc - PDF Reader and Viewer will make your life more productive. Join the document sharing community and DOWNLOAD the smart and convenient PDF Reader and Viewer for FREE!!!

Screenshots

PDF Reader4 screens
iDoc4 screens

Verdict

The call

The clearest difference is in-app purchases: iDoc at none against PDF Reader's 1. iDoc also leads on ads (none vs shown) and update cadence (every 8 days vs every 9 months). PDF Reader's advantage is iOS requirement (9.0 vs 11.0). On price and device support 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. PDF Reader sells 1 one-off in-app purchase. iDoc asks for nothing beyond the download.

UpkeepUpdate frequency

PDF Reader ships an update every 9 months, iDoc every 8 days. The most recent releases landed on September 14, 2026 and May 16, 2026 respectively.

Scorecard4 real differences · 6 level
PDF Reader versus iDoc: the parameters behind the verdict, then further details
ParameterPDF ReaderiDoc
PriceFreeFree
Rating3.5 (2 ratings) — better
Positive reviews33.3% of reviews
Number of ratings2 — better
Update frequencyEvery 9 monthsEvery 8 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS9.0 — better11.0
Further details — not scored
Size7 MB41 MB
Age rating4+4+
Developer小玲 白TP TECHNOLOGY SERVICES COMPANY LIMITED

In-app purchases

1 purchases

PDF Reader

One-time1
  • Permanently remove ads$1.99
None

iDoc

No in-app purchases

Questions

Is PDF Reader free?
PDF Reader is free to download, with in-app purchases available.
Is iDoc free?
iDoc is free to download, with no in-app purchases.
Do PDF Reader or iDoc have ads?
PDF Reader shows ads; iDoc does not.
Which is updated more often, PDF Reader or iDoc?
PDF Reader ships an update every 9 months, and iDoc every 8 days. Most recently, PDF Reader was updated on September 14, 2026 and iDoc on May 16, 2026.

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