Comparison

PDF Pro vs Ink PDF Editor

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

Ink PDF Editor

This application allows users to quickly read, annotate, and edit PDF documents. It offers tools for marking up important information, navigating through documents with bookmarks, and even playing embedded audio. The app provides a straightforward way to manage PDF files on mobile devices.

Highlights
  • Quick PDF reading and viewing
  • Full-text scroll and zoom
  • PDF annotation tools
  • Embedded PDF audio playback
  • Bookmark creation and management
Features
Read full description

Ink PDF Editor is a simple and easy-to-use PDF app. It helps you read and edit PDF files quickly and complete any PDF tasks effortlessly. • Quickly Read PDFs Quickly open and view PDF documents Enable full-text scroll, zoom in and out Choose single page or double page scroll mode • Annotate PDFs Mark up important information with professional annotation tools Various annotation styles and colors to choose from • PDF audio reading Recognize and play PDF embedded audio Support single loop/list mode • Bookmarks Add and edit bookmarks as you like to navigate your PDF documents easily

Screenshots

PDF Pro4 screens
Ink PDF Editor4 screens

Verdict

The call

The clearest difference is rating: PDF Pro at 4.7 against Ink PDF Editor's 4.1. PDF Pro also leads on ratings volume (6.9K vs 35) and review sentiment (60% vs 44%). Ink PDF Editor's advantage is in-app purchases (none vs 12) and update cadence (every 3 weeks vs every 2 months). 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. Ink PDF Editor asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PDF Pro holds the better App Store score, 4.7 against 4.1. That said, the two scores are not equally well evidenced: PDF Pro has 6.9K ratings behind it against 35, so its average is the more settled of the two. Written reviews point the same way: 60% of PDF Pro's written reviews are positive against 44% of Ink PDF Editor's.

UpkeepUpdate frequency

PDF Pro ships an update every 2 months, Ink PDF Editor every 3 weeks. The most recent releases landed on September 24, 2026 and September 17, 2026 respectively.

Scorecard7 real differences · 3 level
PDF Pro versus Ink PDF Editor: the parameters behind the verdict, then further details
ParameterPDF ProInk PDF Editor
PriceFreeFree
Rating4.7 (6.9K ratings) — better4.1 (35 ratings)
Positive reviews60.3% of reviews — better44.4% of reviews
Number of ratings6.9K — better35
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS17.012.0 — better
Further details — not scored
Size91 MB27 MB
Age rating4+4+
DeveloperDominic RodemerHefei T-Stack Information Technology Co., Ltd.

Customer experience

PDF Pro

All ratings6,925 ratings
Positive93.4%
Neutral3.2%
Negative3.3%
Written reviews423 reviews
Positive60.3%
Neutral10.4%
Negative29.3%

Ink PDF Editor

All ratings35 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews9 reviews
Positive44.4%
Neutral22.2%
Negative33.3%

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

Ink PDF Editor

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

Ink PDF Editor

No in-app purchases

Questions

Is PDF Pro free?
PDF Pro is free to download, with in-app purchases available.
Is Ink PDF Editor free?
Ink PDF Editor is free to download, with no in-app purchases.
Which has better reviews, PDF Pro or Ink PDF Editor?
PDF Pro is rated higher. PDF Pro averages 4.7 out of 5 from 6.9K ratings, while Ink PDF Editor averages 4.1 from 35 ratings.
Do PDF Pro or Ink PDF Editor have ads?
Neither PDF Pro nor Ink PDF Editor shows ads.
Which is updated more often, PDF Pro or Ink PDF Editor?
PDF Pro ships an update every 2 months, and Ink PDF Editor every 3 weeks. Most recently, PDF Pro was updated on September 24, 2026 and Ink PDF Editor on September 17, 2026.

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