Cool Reader VS KOReader

An Android tablet and the CoolReader app. For me, it's simply the best eReader experience available. It's incredibly customisable. The only downside is it doesn't support PDF or AZW3, both of which can be reformatted to your preferred file type with Calibre anyway. Source: over 1 year ago

Cool reader is also another option https://sourceforge.net/projects/crengine/. Source: almost 3 years ago

I only read kepub files on my Kobo Clara 2E (kobo stock). I use KOReader to read PDF, CBZ (comic files) and epub. Source: 5 months ago

You can easily modify it (like adding KOReader). Source: 5 months ago

It doesn't try to solve the same use cases that Calibre does, but I built an open source (EPUB only) manager / reader / statistics tracker called AnthoLume [0]. It mostly stemmed from me reading in KOReader [1] on my Kindle, and not having the ability to sync the progress to my iPhone / iPad. It's got metadata matching, support for multiple users, and statistics tracking which allows me to have a "Leaderboard"... - Source: Hacker News / 6 months ago

Hi! I recently became the owner of an e-reader, and wanted an easy way to get web articles from Hacker News and my bookmarks onto the device, on-demand, for easy reading. I'm using KOReader (https://koreader.rocks/) on my device, and like lots of e-book readers it allows browsing online catalogs of books (e.g. From sources like Project Gutenberg) using the OPDS protocol. News2reader is a self-hosted Node... - Source: Hacker News / 9 months ago

No I don't have any special lag. But I also don't use the default reading app, I use Koreader. I think the normal reading app also doesn't have much lag. Most modern eReaders have much less than 5s lag. Source: 10 months ago