
azw3 ones, while Apple labelled their ebook files as.

You could at least use apps like Calibre to convert between formats, but both Amazon and Apple asked themselves what they could do to make matters worse, and each concluded that the answer was to convert the standard they used into a proprietary format.

But this was not to be, as Amazon stuck stubbornly to MOBI. Amazon used MOBI for its Kindle devices, while Apple used EPUB for what were then iBooks and are now Apple Books.įor a while, it looked like we might end up with a single standard, as most companies adopted EPUB. A recently-announced change by Amazon might seem to open up the possibility of reading Apple Books on Kindle devices – but sadly this won’t be the case … Understanding ebook formatsįor years, there were two main competing ebook file formats: MOBI and EPUB.
