Comparison

PDF Pro 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 Pro

Edit, annotate, and read PDF documents on your iPhone and iPad. Highlight text, add notes, shapes, voice recordings, and photos. Search your entire PDF library, fill out forms, and sign documents.

Highlights
  • Edit and annotate PDFs
  • Highlight text and add notes
  • Embed audio and photo annotations
  • Full-text search of PDF library
  • Fill out and sign PDF forms
  • Organize PDFs with folders and tags
  • Import from cloud storage
Features
Read full description

PDF Pro lets you read, edit and annotate your PDF documents directly on your iPhone and iPad. Highlight text, take notes, embed shapes or draw with your finger. You can even embed voice recordings or photo annotations. Full-text-search your entire PDF library with just a single tap. Above all PDF Pro comes with full-featured PDF form and signature support. Key-Features At A Glance: • POWERFUL SEARCH: ∙ Full-text-search your entire PDF library. ∙ Search inside specific documents with easy navigation through the search results. ∙ Look-up selected text directly on Wikipedia or in the included dictionaries. • FILE-MANAGEMENT: ∙ Group your PDFs in folders and tag them with colorful labels. ∙ Import PDFs from your Dropbox®, Microsoft OneDrive® or Google Drive®. ∙ Add PDFs via USB or WiFi. ∙ Open E-Mail attachments. • CLEAR VIEW: ∙ Easily browse through all your annotations. ∙ Full PDF outline support. You can even search the outline. ∙ Get an overview of all your bookmarked or annotated pages just with a single tap. • SHARE and PRINT: ∙ Easily share your annotated documents with your friends or co-workers. ∙ Print your annotated and edited PDFs. ∙ You can even share or print single pages of a document. • HIGH SPEED and STABILITY: ∙ Rapid viewing of PDF documents. ∙ Smooth display of very large PDF files. • NIGHT MODE: ∙ Makes reading in the dark much easier on the eyes. • SECURITY: ∙ Support for password-protected PDFs • AND MUCH MORE... Premium Features and Premium Offer include: • ANNOTATIONS and NOTES: ∙ Highlight text, take notes or draw with your finger. ∙ Powerful shape editor for arrows, rectangles, circles, lines and much more. ∙ Embed audio and photo annotations into your PDFs. ∙ Use predefined stamps or create your own. • DOCUMENT EDITOR: ∙ Create new pages. ∙ Export pages or merge them into existing documents. ∙ Reorder, rotate and delete pages. • CONTENT EDITOR: • Modify the existing content of PDF documents. • MULTITASKING: ∙ Work with multiple PDFs at a time. ∙ Copy and paste annotations, shapes, images or text from one PDF document into another. • FORM SUPPORT: ∙ Just fill out your PDF form, sign it with your handwritten signature and you are ready to send it via E-Mail or print it via AirPrint®. A monthly or annual subscription is required to get access to all premium features and premium offer. --- Subscriptions automatically renew monthly or yearly depending on your plan unless auto-renew is turned off at least 24-hours before the end of the current period. Plans are priced at $3.99USD monthly and $24.99USD yearly (pricing may vary in countries other than the U.S.). Payment will be charged to your App Store Account at confirmation of purchase. To avoid automatic renewal, you must turn off auto-renew at least 24 hours before your subscription ends. You can turn off auto-renew at any time from your App Store Account Settings. Terms of Use: https://pdf-pro.net/terms-of-service/ Privacy Policy: https://pdf-pro.net/privacy-policy/

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 Pro4 screens
iDoc4 screens

Verdict

The call

The clearest difference is in-app purchases: iDoc at none against PDF Pro's 12. iDoc also leads on update cadence (every 8 days vs every 2 months) and iOS requirement (11.0 vs 17.0). On price, ads 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 Pro sells 12 in-app purchases, starting at $1.99 per month. iDoc asks for nothing beyond the download.

UpkeepUpdate frequency

PDF Pro ships an update every 2 months, iDoc every 8 days. The most recent releases landed on September 22, 2026 and May 16, 2026 respectively.

Scorecard3 real differences · 7 level
PDF Pro versus iDoc: the parameters behind the verdict, then further details
ParameterPDF ProiDoc
PriceFreeFree
Rating4.7 (6.9K ratings) — better
Positive reviews60.3% of reviews
Number of ratings6.9K — better
Update frequencyEvery 2 monthsEvery 8 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscription
DevicesiPhone, iPad, Mac — betteriPhone, iPod
Requires iOS17.011.0 — better
Further details — not scored
Size91 MB41 MB
Age rating4+4+
DeveloperDominic RodemerTP TECHNOLOGY SERVICES COMPANY LIMITED

Bugs and requests

PDF Pro

Reported bugs

5 issues
  • Annotations and highlights randomly disappearing
  • Compatibility issues with newer iOS versions
  • Corrupted PDF files after editing
  • Slow performance on older devices
  • Inconsistent behavior when switching between PDFs

Requested features

5 requests
  • Improved bookmarking and note-taking
  • Seamless iCloud/cloud storage integration
  • Customizable keyboard shortcuts
  • Advanced text editing and OCR capabilities
  • Better organization and folder management

iDoc

Not enough reviews yet to summarise bugs or requests.

In-app purchases

12 purchases

PDF Pro

Subscriptions12
  • Offer - Monthly - macOS3 Days trial$1.991 Month
  • Offer - Monthly - iOS3 Days trial$2.991 Month
  • Premium - Monthly - iOS3 Days trial$3.991 Month
Show 9 more
  • Premium - Monthly - macOS3 Days trial$4.991 Month
  • Offer - Annual - iOS3 Days trial$12.991 Year
  • Offer - Annual - macOS3 Days trial$22.991 Year
  • Premium - Annual - iOS3 Days trial$24.991 Year
  • Offer - macOS + iOS3 Days trial$24.991 Year
  • Offer - iOS + macOS3 Days trial$29.991 Year
  • Premium - Annual - macOS3 Days trial$44.991 Year
  • Premium - iOS + macOS3 Days trial$49.991 Year
  • Premium - macOS + iOS3 Days trial$49.991 Year
None

iDoc

No in-app purchases

Questions

Is PDF Pro free?
PDF Pro is free to download, with in-app purchases available.
Is iDoc free?
iDoc is free to download, with no in-app purchases.
Do PDF Pro or iDoc have ads?
Neither PDF Pro nor iDoc shows ads.
Which is updated more often, PDF Pro or iDoc?
PDF Pro ships an update every 2 months, and iDoc every 8 days. Most recently, PDF Pro was updated on September 22, 2026 and iDoc on May 16, 2026.

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