Comparison

VOICEYE vs PDF Viewer by Nutrient

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

Head to head
About

VOICEYE

This app allows visually impaired individuals to access printed information by scanning a special code with their smartphone camera. It converts text from printed materials into digital format, offering various display modes and text-to-speech functionality.

Highlights
  • Scan VOICEYE codes with smartphone camera
  • Convert printed text to digital format
  • Text-to-Speech (TTS) with highlighting
  • Multiple high-contrast viewing modes
  • Adjustable font sizes and zoom levels
  • Magnifier function for camera and gallery images
Features
Read full description

The new way to access printed information for print and visually impaired! VOICEYE is the smartphone application enabling those with print impairments to access printed information using a VOICEYE code on the printed material. Information regarding the VOICEYE code on the printed material: •VOICEYE can hold as much as two A4 pages of text on a 2.5 square centimeter code. •There’s no need for a data or internet connection to decode a VOICEYE code, as the code itself stores the data. •The VOICEYE App will use the phone camera to automatically scan the code and bring all of the text into the phone. Just imagine! You can access any printed information that is around you with your own smartphone. All education materials, all government materials, all books, notice boards in museums or libraries, in fact just about anything, once a document is produced with a VOICEYE code, any material becomes accessible and is accurately identified. In South Korea, the VOICEYE solution has been successfully applied to schools for the blind, universities with special education, publishing companies, state-run corporations, local newspapers and others. The VOICEYE solution is very popular for Dyslexia and the visually impaired. The Korean government has adopted the VOICEYE solution on its official documents, such as social security information, electricity, water, local tax bills and so on. VOICEYE App: Make your dreams come true with a VOICEYE code. Scan a VOICEYE code at the top right corner of the printed material. You then have access to the book you buy, the textbook you study, utility bills and prescriptions, it will then be opened automatically on your smartphone and the text can be read aloud with TTS (Text-to-Speech) software like on the iPhone or iPad (voiceover), or with TALKS or Mobile Speaks. The VOICEYE code is created by the VOICEYE Maker Add-In, which you add into MS-Word, Quark Xpress and Adobe InDesign programs. Quark Xpress and InDesign are programs for publishers. [Main Features] 1. Access to printed information - Scan a VOICEYE code at the top right corner of a page. - Text can be displayed on your smartphone screen in 5 high contrast text viewing modes (colored text) and read out the text with TTS like VoiceOver. - 10 zoom levels in font size - VOICEYE SmartPhone Stand a. This is the aid for visually impaired people so they can find and read VOICEYE code with smartphone. b. Put the smartphone on the smartphone stand and scan VOICEYE code at the top right corner of printed materials. It will be very easy and fast. 2. Magnifier - Provides 6 zoom levels - 5 high contrast viewing modes to maximize text readability - Magnifying various sources using camera or gallery 3. Text-to-Speech with Highlighting - In TTS mode, you will simultaneously hear the words and see them highlighted.

About

PDF Viewer by Nutrient

Easily view, search, and annotate PDF documents on your iPhone and iPad. Import files from cloud services, fill out forms, add signatures, and organize your documents. Advanced features like redaction and combining documents are available with a Pro subscription.

Highlights
  • View and search PDFs
  • Annotate with highlights and notes
  • Sign documents digitally
  • Fill out PDF forms
  • Organize and share documents
  • Import from cloud services
Features
Read full description

PDF Viewer is a fast and beautiful app, allowing you to view, search, and annotate PDF documents with ease on your iPhone and iPad. Access your files from iCloud, Dropbox, Box, OneDrive, Google Drive or any other cloud solution via Apple's familiar Document Browser interface. +++ Listed as “Productivity lifesaver” on the App Store +++ "A streamlined interface packed with powerful features - it’s like having a desktop-quality PDF toolkit wherever we go" – App Store Editor Notes “I'm impressed by how the folks at PSPDFKit have been able to fine-tune the document browser to the app's needs.” – MacStories.net "If you want a PDF viewer that is designed for reading PDF books, this is it." – App Review VIEW DOCUMENTS ON THE GO • Easily import a PDF from your favorite cloud service provider, email, or directly off a website. • Supports Open In Place, Drag & Drop and features the familiar Apple Document Browser interface from the Files app. • Search for the exact text you are looking for within the document. • Double tap on the screen to Smart Zoom directly to the text you want to read. • Annotate images (JPEG, PNG) non-destructive, just like PDF documents. (PRO) ANNOTATE WITH EASE • While reviewing a document, use your finger or Apple Pencil to highlight and markup text. • Leave comments by adding a note, text, or drawing directly on the PDF. • Add images or audio. • Reply to notes. (PRO) SIGN DOCUMENTS ANYWHERE • Add your signature to any document using your finger or Apple Pencil. • Move and resize your signature as needed. • Flatten a document to ensure the signature doesn’t change. CREATE AND EDIT PDFs • Create new documents from existing documents by moving, rotating, deleting, or adding new pages. • Combine multiple documents into a single one. (PRO) • Add bookmarks to easily return to certain pages in large documents. FILL OUT FORMS • Quickly fill out PDF Forms by adding text to the fields. • Flatten and secure the form once you’re done to ensure the document doesn’t change. • Add a signature to any Form. STORE, ORGANIZE AND SHARE • Store documents, create folders and organize your documents. • Share documents by printing, emailing or saving your edits back any cloud service. PASSWORD PROTECT DOCUMENTS • Read document metadata, title and keywords. • Protect documents with user and owner passwords and limit permissions. (PRO) AND SO MUCH MORE • Conveniently switch to night mode when viewing your documents at night. • Present on external screens without the distraction of toolbars. (PRO) • Have the text from a PDF read out loud to you with text-to-speech. • PDF Viewer remembers where you were down to the page/position where you left off - even across devices. PRICING PDF Viewer comes with a large feature set, completely free. Some advanced features require the purchase of PDF Viewer Pro, available as a subscription. We offer 3-monthly and yearly subscription plans. There’s also a fully functional 7-day trial, so you can test PDF Viewer Pro (including document merging and password editing) before you commit. All plans unlock the app on iPhone and iPad. TRUSTED BY COMPANIES YOU KNOW PDF Viewer is built on top of and powered by PSPDFKit, the same PDF engine trusted around the world by companies like Dropbox, Box, IBM, Atlassian, SAP, and Lufthansa. BE PART OF THE PDF VIEWER COMMUNITY pdfviewer.io twitter.com/pdfviewerapp LEGAL Duration and price of each subscription are displayed in PDF Viewers’ storefront, updated at the time of purchase. Payment will be charged to iTunes account at confirmation of purchase. Subscriptions automatically renew unless auto-renew is turned off no later than 24 hours before the end of the current period. Subscriptions and auto-renewal can be managed/turned off in the iTunes account settings. Any unused portion of a free trial period is forfeited as soon as a subscription is purchased. Terms of Use: https://pdfviewer.io/terms Privacy Policy: https://pdfviewer.io/privacy

Screenshots

VOICEYE4 screens
PDF Viewer by Nutrient4 screens

Verdict

The call

The clearest difference is rating: PDF Viewer by Nutrient at 4.6 against VOICEYE's 3.0. PDF Viewer by Nutrient also leads on review sentiment (74% vs 33%) and ratings volume (9.1K vs 2). VOICEYE's advantage is in-app purchases (none vs 2) and iOS requirement (12 vs 17.0). On price and ads 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 Viewer by Nutrient sells 2 in-app purchases, starting at $6.99 per 3 months. VOICEYE asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PDF Viewer by Nutrient holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: PDF Viewer by Nutrient has 9.1K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 33% of VOICEYE's written reviews are positive against 74% of PDF Viewer by Nutrient's.

UpkeepUpdate frequency

VOICEYE ships an update every 2 months, PDF Viewer by Nutrient monthly. The most recent releases landed on September 26, 2026 and September 30, 2026 respectively.

Scorecard8 real differences · 2 level
VOICEYE versus PDF Viewer by Nutrient: the parameters behind the verdict, then further details
ParameterVOICEYEPDF Viewer by Nutrient
PriceFreeFree
Rating3.0 (2 ratings)4.6 (9.1K ratings) — better
Positive reviews33.3% of reviews73.6% of reviews — better
Number of ratings29.1K — better
Update frequencyEvery 2 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPodiPhone, iPad, Mac, Vision Pro — better
Requires iOS12 — better17.0
Further details — not scored
Size81 MB112 MB
Age rating4+4+
Developervoiceye,incPSPDFKit GmbH

Customer experience

VOICEYE

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews6 reviews
Positive33.3%
Neutral16.7%
Negative50.0%

PDF Viewer by Nutrient

All ratings9,080 ratings
Positive90.9%
Neutral3.7%
Negative5.4%
Written reviews1,088 reviews
Positive73.6%
Neutral9.7%
Negative16.7%

Bugs and requests

VOICEYE

Not enough reviews yet to summarise bugs or requests.

PDF Viewer by Nutrient

Reported bugs

4 issues
  • Annotations randomly disappearing or not saving
  • Incompatibility issues with certain PDF files
  • Scrolling and panning problems on large PDFs
  • Unexpected crashes after iOS updates

Requested features

5 requests
  • Add a rubber/eraser tool for annotations
  • Implement a side-by-side PDF view mode
  • Improve palm rejection and gesture support
  • Allow customization of toolbar and shortcuts
  • Provide better options for PDF file management

In-app purchases

None

VOICEYE

No in-app purchases

2 purchases

PDF Viewer by Nutrient

Subscriptions2
  • PDF Viewer Pro 3 Months7 Days trial$6.993 Months
  • PDF Viewer Pro Yearly7 Days trial$19.991 Year

Questions

Is VOICEYE free?
VOICEYE is free to download, with no in-app purchases.
Is PDF Viewer by Nutrient free?
PDF Viewer by Nutrient is free to download, with in-app purchases available.
Which has better reviews, VOICEYE or PDF Viewer by Nutrient?
PDF Viewer by Nutrient is rated higher. VOICEYE averages 3.0 out of 5 from 2 ratings, while PDF Viewer by Nutrient averages 4.6 from 9.1K ratings.
Do VOICEYE or PDF Viewer by Nutrient have ads?
Neither VOICEYE nor PDF Viewer by Nutrient shows ads.
Which is updated more often, VOICEYE or PDF Viewer by Nutrient?
VOICEYE ships an update every 2 months, and PDF Viewer by Nutrient monthly. Most recently, VOICEYE was updated on September 26, 2026 and PDF Viewer by Nutrient on September 30, 2026.

Other comparisons