This site is an archive of the EPUB3 Support Grid. The results here are not current.

For current accessibility testing results, please go to epubtest.org.

Reading System Evaluations

Information About Test Categories

Essential and Advanced results are presented in this table. The Essential category has several subcategories presented. Reading systems should aim to achieve a full score in these essential tests.

The Advanced subcategories are quite unique and Reading Systems are not expected to achieve a full score in each and every subcategory. The objectives of the advanced subcategories are:

  • They show us which features are supported in the Reading Systems. Based on these results, we may provide recommendations to application developers.
  • We learn which Assistive Technologies support various features being tested. We may provide guidance to AT developers based on these results.
  • We can make “best practice” recommendations to authors and publishers based on these results. We will evaluate the results so that we can attain the best reading experience and avoid recommending the lowest common supported implementations.
  • Advanced subcategories will prepare Reading Systems for future accessibility advancements. As we make progress and raise the bar for accessibility, advanced tests will become fundamental tests.

The following reading systems have been evaluated:

Table view: Basic | Fixed Header | Scrolled (The basic view is best for screen readers.)

Reading System Essential Advanced
Name AT Basic Functionality Non-Visual Reading Visual Adjustment Tests Read Aloud Media Overlays Math Extended Descriptions
VitalSource Bookshelf Online v 2019 (Windows 10) None Not Tested Not Tested 75% 75% Not Tested Not Tested Not Tested
VitalSource Bookshelf Desktop Windows v 8 (Windows 7/8/10) None Not Tested Not Tested 75% 87.5% Not Tested Not Tested Not Tested
RedShelf v Cloud-based (Windows 10) None Not Tested Not Tested 75% 87.5% Not Tested Not Tested Not Tested
RedShelf v Cloud-based (Windows 10) JAWS for Windows screen reader 73.3% 100% Not Tested Not Tested Not Tested Not Tested Not Tested
RedShelf v Cloud-based (Windows 10) JAWS for Windows 86.7% 100% Not Tested Not Tested Not Tested Not Tested Not Tested
RedShelf v Cloud-based (Windows 10) NVDA (April 1) 86.7% 100% Not Tested Not Tested Not Tested Not Tested Not Tested
RedShelf v Cloud-based (Windows 10) NVDA (April 1) 86.7% 100% Not Tested Not Tested Not Tested Not Tested Not Tested
Adobe Digital Editions v 4.5.2.151207 (Microsoft Windows 10) Jaws 20% 0% Not Tested Not Tested Not Tested Not Tested Not Tested
Microsoft Edge v 1809 (Windows 10) Not Tested Not Tested 100% 87.5% Not Tested Not Tested Not Tested
Microsoft Edge v 1809 (Windows 10) NVDA 2018.4.1 80% 100% Not Tested Not Tested Not Tested Not Tested Not Tested
Dolphin EasyReader v 7.0.6 (Windows 10) Jaws 2018 60% 92.9% Not Tested 100% Not Tested Not Tested Not Tested
Voice Dream Reader v 4.7.1 (iOS 12) Not Tested Not Tested 100% 100% Not Tested Not Tested Not Tested
Dolphin EasyReader v 7.06 (Windows 10) None Not Tested Not Tested 75% 100% 0% Not Tested Not Tested
Adobe Digital Editions v 4.5.6.177.148 (Windows 10) None Not Tested Not Tested 75% 0% Not Tested Not Tested Not Tested
Dolphin EasyReader v 2.4.449 (Android 9) None Not Tested Not Tested 75% 100% Not Tested Not Tested Not Tested
Dolphin EasyReader v 2.4.449 (Android 9) Talkback 86.7% 85.7% Not Tested Not Tested Not Tested Not Tested Not Tested
Google Play Books v 5.0.5 (Android 9) None Not Tested Not Tested 75% 87.5% Not Tested Not Tested Not Tested
Google Play Books v 5.0.5 (Android 9) Talkback 86.7% 64.3% Not Tested Not Tested Not Tested Not Tested Not Tested
Dolphin EasyReader v 2.3 (iOS 12) None Not Tested Not Tested 75% 100% Not Tested 33.3% Not Tested
Google Play Books v 5.1.2 (iOS 12.1.3) Not Tested Not Tested 75% 0% Not Tested Not Tested Not Tested
Google Play Books v 5.1.2 (iOS 12.1.3) Voiceover 53.3% 57.1% Not Tested Not Tested Not Tested Not Tested Not Tested
VitalSource Bookshelf v 4.5.1 (iOS 12.1.3) None Not Tested Not Tested 75% 87.5% Not Tested Not Tested Not Tested
Azardi v 43.1 (Windows 10) NVDA 2018.4.1 with EcoBraille Plus 66.7% 92.9% Not Tested Not Tested Not Tested Not Tested Not Tested
Azardi v 43.1 (Windows 10) None Not Tested Not Tested 75% 0% Not Tested Not Tested Not Tested
Voice Dream v 4.7.1 (iOS 12) Voiceover 93.3% 100% Not Tested Not Tested Not Tested Not Tested Not Tested
Apple Books v 4.2.1 (iOS 12) None Not Tested Not Tested 100% 0% Not Tested Not Tested Not Tested
Apple Books v 4.2.1 (iOS 12) Voiceover 80% 64.3% Not Tested Not Tested Not Tested 33.3% 55.6%
Apple Books v 1.17 (MacOS ) None 86.7% Not Tested 100% 12.5% Not Tested Not Tested Not Tested
Simply Reading v 3.0.7 (Android 9) None Not Tested Not Tested 100% 0% Not Tested Not Tested Not Tested
Simply Reading v 3.0.7 (Android 9) Talkback 100% 71.4% Not Tested Not Tested Not Tested 0% 11.1%
Voice Dream v 3.0.32 (Android 9) None Not Tested Not Tested 75% 87.5% Not Tested Not Tested Not Tested
Voice Dream v 3.0.32 (Android 9) Talkback 66.7% 35.7% Not Tested Not Tested Not Tested Not Tested Not Tested
Dolphin EasyReader v 2.3 (iOS 12) Voiceover 93.3% 92.9% Not Tested Not Tested Not Tested Not Tested Not Tested
VitalSource Bookshelf v 4.5.1 (iOS 12.1.3) 80% 85.7% Not Tested Not Tested Not Tested Not Tested Not Tested
Adobe Digital Editions v 4.5.10 (iOS 12) None Not Tested Not Tested 87.5% 0% Not Tested Not Tested Not Tested
Adobe Digital Editions v 4.5.10 (iOS 12) Voiceover 33.3% 85.7% Not Tested Not Tested Not Tested Not Tested Not Tested
Adobe Digital Editions v 4.5.10 (Android 9) None Not Tested Not Tested 87.5% 0% Not Tested Not Tested Not Tested
Adobe Digital Editions v 4.5.10 (Android 9) Talkback 6.7% 0% Not Tested Not Tested Not Tested Not Tested Not Tested
Adobe Digital Editions v 10.5.10 (MacOS ) None Not Tested Not Tested 75% 0% Not Tested Not Tested Not Tested
VitalSource Bookshelf Online v Browser/Cloud-based (Windows 10) JAWS 2019 80% 100% Not Tested Not Tested Not Tested 66.7% Not Tested
VitalSource Bookshelf Online v Browser/Cloud-based (Windows 10) NVDA (April 1, 2018) 86.7% 100% Not Tested Not Tested Not Tested Not Tested Not Tested
VitalSource Bookshelf Online v Browser/Cloud-based (Windows 10) NVDA (April 1) 93.3% 100% Not Tested Not Tested Not Tested Not Tested Not Tested
VitalSource Bookshelf Online v Browser/Cloud-based (Windows 10) JAWS for Windows 2019 86.7% 100% Not Tested Not Tested Not Tested Not Tested Not Tested
RedShelf v Cloud-based (Mac OSX10.14 Mojave 10.14 Mojave) VoiceOver with gestures and keyboard. 93.3% 100% Not Tested Not Tested Not Tested Not Tested Not Tested
VitalSource Bookshelf Online v Browser/Cloud-based (Mac OSX10.14 Mojave 10.14 Mojave) VoiceOver using gestures and keyboard. 93.3% 100% Not Tested Not Tested Not Tested Not Tested Not Tested

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