[parkher]

Cool Reader

Tested on: Onyx Boox Note (android 6.0.1)
Tested version: 3.2.9-1 (2018-08-14)

This is the "official" Cool Reader from Vadim Lopatin.
Finally decided to try it.
First of all, it seems that it recognized my device as e-ink and automatically switched to bw theme and some settings not useful for e-ink in Options menu were removed.
It also removed absent on Note keys in the key assignment menu.
Also, the recent book list here is working as usually - the full functionality.
I have to say, so far I love it. Not sure if it would work on T2, though.
I like the things you can assign to tap zones in Cool Reader (as well as in jCoolReader), such as toggle between internal and external styles, toggle auto-formatting, recent book list, last book folder (useful when reading series), etc.
Cool Reader also supports external css files. Good integration with dictionaries.
Allows to adjust font gamma which is useful for e-ink, etc.

So far, the main thing I miss in Cool Reader: page-by-page navigation through long list of books in the built-in file manager and in the recent book list, because Onyx Boox Note has no buttons. Or an ability to jump to any place in the list. Alternative: to make the key assignments also for file lists, not only inside the open book. I made a request for such things, not sure if it will be addressed, though. But it is an open source project, it would be possible to build a modified version independently.
Work-around: The stock file manager in Note (called Storage) allows such navigation, so you can get to a book this way and then open it in Cool Reader instead of using the internal CR file manager.

So on Note I am switching from jCoolReader to Cool Reader. But not on T1 & T2. On those devices jCoolReader is working very well and the newest Cool Reader probably would choke, or not run at all (just guessing, though)

IMPORTANT: if you are trying various Cool Reader / jCoolReader versions, you better delete hidden CR cache folders if they show up in the root or in the folder with books (their names begin with .cr3, .jcr3, I think) otherwise you may get unpredictable mixed results, various versions behaving not as they really should. So far no such cache folders were created by this newest version of Cool Reader, though.