[graatch]

Bookfusion has been decent. They need to improve the epub experience in various ways like inline footnote functionality (as opposed to endnote jump). One should also be able to directly annotate selected text, defaulting to the last used highlight type, default default yellow highlight -- presently annotating anything requires selecting the text, highlighting, selecting the highlight, and selecting annotate -- that extra click can throw off workflow heavily.

Given the expense, I expect the developers to improve along these lines soon. If that doesn't happen, the price isn't right.

Pocketbook is quite good in features. Interface seems less responsive than it ought to be though compared to these others, and seems to be calibrated a little weirdly, on iPad Air and Pro.

Have found the PDFs look quite good on iOS tablet screens though and browsing is smooth even with larger documents. And their cloud works great.

It would be nice for PDF text to have some alternatives to interpret lineation (e.g. between default text as given, text with line breaks, text with 1 white space between words only) and epub viewing will always improve with CSS toggle options.

Yomu is elegant -- except the unfortunate lack of being able to do anything with text or annotations when it's a PDF, regardless of whether the PDF has text or not. Hopefully they finish up and add the function. I rate this unusable but if the function is added it might be an A+.

Kindle would be good if they hadn't direly nerfed custom documents in general. ��

Have not yet tried GoodReader, MapleRead.

Most other apps = bad.