Readium-Based EPub3 Apps Released for Android, iOS

Readium-Based EPub3 Apps Released for Android, iOS e-Reading Software

eBook app development is almost a dead field, but after years of only being able to report on new features in the Kindle apps, I am pleased to report that multiple Epub3 apps have been released in under a month.

A couple weeks ago EDR Lab released the first alpha version of its app for Windows, macOS, and Linux, and now I can report that similar apps have been released for Android and iOS.

Released last month, Lea Reader is an Android app that uses the open source Readium  SDK as the core of a custom and easy-to-use Android SDK. The app has basic features like management of personal book collections, bookmarks, annotations, and full-text search, and supports both reflowable and fixed-layout ebooks.

This is an evolving app and it will get many new options in the coming months such as Dropbox, Google Drive, and iCloud integration. You can find the app in Google Play.

Just released this week, R2 Reader is an iOS app from EDRLab. According to the listing:

This free reading application demonstrates the power of the open-source Readium-2 architecture for accessing Epub and Epub3 publications. It is compatible with Readium LCP, the non-proprietary and user friendly solution for distributing protected publications. It supports OPDS feeds, and therefore allows users to access easily a multitude of free ebooks from multiple providers.

Edit: R2 Reader also supports the new Readium DRM. No one sells ebooks with this DRM, but you can test it here.

You can find R2 Reader in iTunes.

Nate Hoffelder

View posts by Nate Hoffelder
Nate Hoffelder is the founder and editor of The Digital Reader. He has been blogging about indie authors since 2010 while learning new tech skills weekly. He fixes author sites, and shares what he learns on The Digital Reader's blog. In his spare time, he fosters dogs for A Forever Home, a local rescue group.


  1. M.10 April, 2018

    Thank you! For a long time now I meant to check out Readium-based Apps to test if they support speech markup for TTS and how it works, but I’m still busy writing the book I wanted to try it out for. I have bookmarked your post for when I’m done!

    1. Nate Hoffelder10 April, 2018


  2. Reader10 April, 2018

    There is also Gitden and Bookari (used to be called Mantano) if you want other standards-compliant readers.

  3. […] Readium-Based EPub3 Apps Released for Android, iOS (The Digital Reader) […]

  4. pfunnyjoy15 April, 2018

    Well, FOO! Went to install Lea Reader on my Pixel C and it apparently isn’t available for my country, the good ole USA. What the heck are the developers thinking?

    Meanwhile, no trouble getting R2 Reader on my iPad…

  5. […] there are other apps that also use a form of Readium DRM; it's not clear whether all the apps and ereaders use mutually compatible DRM (this is one of the […]


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