EPUBReader is a free HTML5-based ebook reader developed by Michael Volz. It is a fast and lightweight app that is less than 1 MB in size. The app is designed to read ebooks in the EPUB format without DRM. It uses the proven reading engine of the Firefox Add-on EPUBReader, which has 500,000 daily users. One of the unique features of this app is that it opens the ebooks in memory at the location where they are stored, without requiring extra space.

EPUBReader requires only the right to read the SD card. It comes with auto bookmarking, day/night theme, and tagging features. The app does not have any in-app advertising. If you encounter any issues while using the app, you can contact the developer via the support mail address provided. Overall, EPUBReader is a great option for those looking for a fast and simple ebook reader that supports the EPUB format.