When comparing FBReader vs Librera Reader (PRO), the Slant community recommends Librera Reader (PRO) for most people. In the question“What are the best eBook readers on Android?” Librera Reader (PRO) is ranked 2nd while FBReader is ranked 5th. The most important reason people chose Librera Reader (PRO) is:
Best app so far.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Built in eBook store
FBReader features an in built eBook store for users to download eBooks onto their devices through the app.
Pro Simple and fast
FBReader, while offering many options is simple in design, with that allowing for fast use.
Pro Books can be saved to SD card
Pro Cloud sync
FBReader has built in Google Drive sync for the users files, allowing them to store their eBooks online, not taking up room on their local storage.
Pro Has all the functionality one needs - nothing is missing and there's nothing excessive
Best app so far.
Pro Fast animation
Pro FOSS
GPL v.3.
Pro Can read aloud texts
Customize the voice with pitch, speed and do whatever you want with it.
Pro UI and reading customization will blow your mind
You can even customize CSS code to fine-tune display of epub books. The best reader to handle online catalogs and TTS reading!
Cons
Con Cannot search for books on a SD card
Con No light mode
Unusable if you have astigmatism.
Con UI is bad
User interface is confusing and ugly.
Con Complex and confusing app settings
Con Free version contains ads
The Pro version has no problem. Alternatively, the fdroid version works as well, though it might be annoying to those who want cloud integration because the fdroid version doesn't have cloud integration.
Con No way to set a "home" folder
You have to press the back button a ridiculous amount of times to exit the app and then browse back to your books when you want to read again later.
Con Cannot reverse PDF reflow to return to normal view without exiting the PDF and opening again
Very annoying when you want to view graphics and tables etc.