PDF Reader vs iDoc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDF Reader
This app offers a superior PDF reading experience with its innovative Liquid Mode, which optimizes documents for mobile screens. It also provides robust tools for annotating, signing, managing, and sharing your PDF files, catering to both work and study needs.
- Liquid Mode for optimized mobile reading
- Annotation tools (pencil, text, highlighting)
- Handwritten signature insertion
- File management (move, merge, copy, delete)
- Cloud service integration (Wondershare, iCloud)
- Create blank PDFs and folders
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PDFelement - PDF Reader is a PDF reader using the latest technology. The newly connected Liquid Mode function allows you to enjoy the best reading experience. In addition, there are various annotation tools, file management, signature, Various functions such as cloud services can meet your PDF needs in work and study. PDF VIEWER • Liquid Mode gives you the best PDF reading experience • Star files to find them quickly • Easily locate recently accessed files in the "Recent" list. • Enter the page number to navigate to the desired page for viewing LIQUID MODE • Get the best PDF Reading experience with Liquid Mode • PDF document fully fits the mobile phone screen, no need to zoom in and out repeatedly. • Easily adjust brightness, font size,style, and spacing. ANNOTATE • Using Pencil to annotate like writing on the paper • Add text annotations, freely modify the text and background, border colors, choose the appropriate font and font size. • Supports many annotating tools like highlighting, underlining, squiggly lines, or strikethroughs. MANAGE • Move, merge, copy or delete files SIGNATURE • Enables handwritten signatures to be inserted anywhere within the document, while also offering the ability to zoom in and out for greater flexibility. • Built-in commonly used stamps CREATE • Quickly create completely blank PDF documents • Creat blank folders. SHARE • Sharing document content with others is just a click away with capture feature. • Select sentence(s) or pragraph(s) to share CLOUD SERVICE • PDF Reader supports uploading or downloading docs via computer, Wondershare document cloud and iCloud. Please note that this app only supports editing native PDF files. It does not support editing scanned or raster PDF. If you find you cannot edit text in PDF, please check if it is scanned PDF. Thank you! ---------------------------------------------------------------------------------------- Need HELP? Please contact us! We'll feedback to you ASAP. Email: pdfelement@wondershare.com Support Center: http://support.wondershare.com Forum: http://forum.pdf.wondershare.com Official Website: https://pdf.wondershare.com If you think this App helps you, your positive review in the App Store would be much appreciated.
iDoc
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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
Verdict
The clearest difference is update cadence: iDoc at every 8 days against PDF Reader's every 2 months. iDoc also leads on iOS requirement (11.0 vs 15.0). On price, ads, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
PDF Reader ships an update every 2 months, iDoc every 8 days. The most recent releases landed on September 23, 2026 and May 16, 2026 respectively.
| Parameter | PDF Reader | iDoc |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (3.9K ratings) — better | — |
| Positive reviews | 76.7% of reviews | — |
| Number of ratings | 3.9K — better | — |
| Update frequency | Every 2 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 173 MB | 41 MB |
| Age rating | 4+ | 4+ |
| Developer | Wondershare Technology (Hunan) Co.,Ltd. | TP TECHNOLOGY SERVICES COMPANY LIMITED |
Bugs and requests
PDF Reader
Reported bugs
4 issues- Text boxes appearing randomly
- Inability to select/edit text in some PDFs
- Scrolling issues and page loading delays
- Incompatibility with certain PDF formats
Requested features
5 requests- Ability to edit text formatting (font, size, color)
- Support for multiple open documents
- Improved Apple Pencil integration
- Bookmark/favorite feature for frequently used PDFs
- Expanded cloud storage integration (OneDrive, Google Drive, etc.)
iDoc
Not enough reviews yet to summarise bugs or requests.
In-app purchases
PDF Reader
No in-app purchases
iDoc
No in-app purchases









