[shasheene]

Highlighting the very popular app enabled by this, KOReader: https://koreader.rocks/

https://github.com/koreader/koreader

[goosedragons]

Koreader can also be installed on Kobo out of the box with no jailbreaking. Just in case anybody was thinking of getting a Kindle for this.

[vanderZwan]

It's worth doing so on older kobo readers in my experience because it turns pages faster, and it also correctly displays embedded ePub fonts that the native software doesn't. I don't know how many of you will ever read books that feature APL glyphs so I don't know how relevant that last bit is, and I can't speak for more recent models.

[RachelF]

Yes, KOReader is the reason to jailbreak a Kindle.

It's way better than the built-in Amazon reader app.

[safety1st]

I was actually trying out KOReader (on Android via F-droid) last night and it... looks promising... but better than the Kindle app, really? It doesn't have a dark mode which is basically baseline for me reading at night. Or am I missing something?

[kubb]

Does it have machine translation? That would be a killer feature for me.

Edit: it has AskGPT!

[drewbitt]

For translation of more than a couple sentences on demand, you'd more likely translate the epub before you put it on the device, like with the Calibre plugin https://github.com/bookfere/Ebook-Translator-Calibre-Plugin . There are better solutions that have a dictionary for consistent name translations, too.

[anoncow]

Worth it just for this app.