Comparison

Right PDF Reader vs Notator | Annotate Documents

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

Head to head
About

Right PDF Reader

This application provides robust PDF viewing, annotation, and management tools. It allows users to organize, share, and sign documents with a user-friendly interface and advanced features.

Highlights
  • Fast PDF viewing
  • Annotation tools (highlight, draw, text)
  • Document organization with folders
  • Cloud storage integration (Dropbox, WebDAV)
  • Handwritten signature creation
  • Form filling
  • Password protection
Features
Read full description

Right PDF Reader goes beyond a free PDF reader app. Created by a team of professionals in the PDF software business since 1993, Right PDF Reader has a simple UI that is easy to navigate and more features than average free readers. PDF Viewing - Fast document open speed - Browse lets you view PDFs in the device or iCloud - Supported thumbnail view - View PDF portfolio, comment, attachment and protected document - Single page view or continuous view available - Fit page width or whole page are also available under single page view - Use Day/Night mode to adjust brightness - After tapping page number, you can enter a number and jump to that page directly. - Quickly add and edit Bookmarks and Marks - Search document Note and Comments - Use highlight, cross-out and underline to annotate PDF with customizable color and opacity - Note lets you to add text comment anywhere in PDF - Use Draw Tools to mark up PDF with color, thickness and opacity of your choice. Move and undo are also supported - Batch remove comments Document Management - Create folder to organize PDFs better - Move or copy multiple documents to a folder - Compress multiple documents or folders, or extract any package quickly - Rename document - Attach one or multiple PDFs to an e-mail - Select and delete multiple documents Online Sharing - Get documents in and out of Dropbox - Add WebDAV servers to upload/download documents easily - Access documents in Gaaiho PDF online or upload documents directly to the app (permissions required), breaking the barrier between computer and your iPhone/iPad Handwritten signature - You can create a handwritten signature by drawing, using an image, or taking a photo - Sign anywhere in document Other Features - Fill a form - Use “open in” to share PDF files with other applications - Auto-memorize the point you quitted reading last time - Protect PDF with an open password - Print document

About

Notator | Annotate Documents

This app allows for detailed annotation of PDFs and images with various tools, including support for Apple Pencil. It offers flexible import options, high-quality rendering for large files, and intuitive page management. Upgrade to Pro for advanced export and editing capabilities.

Highlights
  • PDF and image annotation
  • Apple Pencil support
  • Flexible PDF import
  • High-quality PDF support
  • Zoom up to 1000%
  • Intuitive page management
  • Cloud storage integration
Features
Read full description

Notator is the ultimate app for all your PDF and image annotation needs, along with seamless note-taking capabilities. It adapts effortlessly to any situation, whether you're studying, working, or simply organizing your personal life. Experience the versatility of Notator today! What does Notator have in store for you? 1. Easy Annotation on PDFs and Images Effortlessly elevate your PDFs and images using a range of editing tools like pens, text boxes, and shapes. Infuse your own style by adding annotations, whether it's making notes on drawings, creating study guides, or refining your materials to perfection. 2. Supports Apple Pencil Our platform is fully compatible with the Apple Pencil, guaranteeing a seamless and precise writing experience when working on your documents. Additionally, you have the flexibility to utilize your fingers as an alternative input method. 3. Flexible PDF Import Extract specific portions from images saved on your device, recently captured photos, or PDF materials, and seamlessly insert them into your document while editing. 4. High-Quality PDF Support No need to worry about image degradation when importing large PDFs, even ones as big as A0 size. Edit detailed drawings and extensive project materials with ease, so you can stay stress-free while working on your documents. 5. Clipping and Pasting of PDFs & Photos Extract specific portions from images saved on your device, recently captured photos, or PDF materials, and seamlessly insert them into your document while editing. 6. Zoom Function Enables zooming up to 1000%, ensuring a hassle-free experience for annotating and reviewing intricate details in drawings. 7. Intuitive Page Management Effortlessly manage pages in imported PDFs or created documents with an intuitive interface. Rearrange, duplicate, delete, or add pages with ease, putting you in complete control. 8. Cloud Storage Compatible Easily import PDFs and images from cloud storage services like iCloud, Dropbox, Box. You can also upload your own documents hassle-free. 9. Notator Pro By upgrading to Notator Pro, you unlock the following features: - Export your created documents as PDFs or JPGs to easily share them with other apps. - Edit documents created by colleagues, friends, or family on different devices (note: real-time co-editing is not available). Stay tuned for more exciting updates as we add more useful features. To register, simply head to the "Settings" menu and select "Notator Pro." And guess what? You can enjoy a free trial for the first week! ◆ Ideal for a wide range of situations including: - Annotating intricate drawings or documents with precision. - Extracting specific sections from multi-page PDFs and adding your notes. - Annotating PDFs and images stored in cloud storage effortlessly. - Cutting out sections from various PDFs and images and compiling them into a single document. ◆ Contact Us If you have any questions, problems, or requests about using the app, feel free to contact us via our contact form. https://cimtops-sglab.com/about#contact-us ◆ Terms of Service https://cimtops-sglab.com/terms ◆ Privacy Policy https://cimtops-sglab.com/privacy-policy

Screenshots

Right PDF Reader4 screens
Notator | Annotate Documents4 screens

Verdict

The call

The clearest difference is rating: Right PDF Reader at 4.6 against Notator | Annotate Documents's 2.0. Right PDF Reader also leads on in-app purchases (none vs 2) and ratings volume (5 vs 1). Notator | Annotate Documents's advantage is update cadence (every 2 months vs every 11 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. Notator | Annotate Documents sells 2 in-app purchases, starting at $1.99 per month. Right PDF Reader asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Right PDF Reader holds the better App Store score, 4.6 against 2.0. That said, the two scores are not equally well evidenced: Right PDF Reader has 5 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Right PDF Reader ships an update every 11 months, Notator | Annotate Documents every 2 months. The most recent releases landed on September 27, 2026 and October 6, 2026 respectively.

Scorecard6 real differences · 4 level
Right PDF Reader versus Notator | Annotate Documents: the parameters behind the verdict, then further details
ParameterRight PDF ReaderNotator | Annotate Documents
PriceFreeFree
Rating4.6 (5 ratings) — better2.0 (1 ratings)
Positive reviews92.3% of reviews—
Number of ratings5 — better1
Update frequencyEvery 11 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better26.0
Further details — not scored
Size79 MB30 MB
Age rating4+4+
DeveloperZEON CorpCIMTOPS SG LAB Pte. Ltd.

Customer experience

Right PDF Reader

All ratings5 ratings
Positive80.0%
Neutral20.0%
Negative0.0%
Written reviews13 reviews
Positive92.3%
Neutral7.7%
Negative0.0%

Notator | Annotate Documents

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Right PDF Reader

No in-app purchases

2 purchases

Notator | Annotate Documents

Subscriptions2
  • Notator Pro Monthly7 Days trial$1.991 Month
  • Notator Pro Yearly7 Days trial$8.991 Year

Questions

Is Right PDF Reader free?
Right PDF Reader is free to download, with no in-app purchases.
Is Notator | Annotate Documents free?
Notator | Annotate Documents is free to download, with in-app purchases available.
Which has better reviews, Right PDF Reader or Notator | Annotate Documents?
Right PDF Reader is rated higher. Right PDF Reader averages 4.6 out of 5 from 5 ratings, while Notator | Annotate Documents averages 2.0 from 1 ratings.
Do Right PDF Reader or Notator | Annotate Documents have ads?
Neither Right PDF Reader nor Notator | Annotate Documents shows ads.
Which is updated more often, Right PDF Reader or Notator | Annotate Documents?
Right PDF Reader ships an update every 11 months, and Notator | Annotate Documents every 2 months. Most recently, Right PDF Reader was updated on September 27, 2026 and Notator | Annotate Documents on October 6, 2026.

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