Based on our record, Librera Reader seems to be a lot more popular than GoodSync. While we know about 14 links to Librera Reader, we've tracked only 1 mention of GoodSync. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I've been rather happy with Librera, although when reading foreign languages, I prefer KOReader for its locally installed dictionary lookups (you have to add them). Note that these are both reader software, first, and not advanced library management packages (as far as I know). The last I checked, Librera also had two versions on the Play store, with the paid pro (or whatever) version sending a few dollars towards... - Source: Hacker News / 6 months ago
On Android, the text-to-speech I find is better with https://librera.mobi/. Source: about 1 year ago
I use Libera which has everything I need for a reader, to view full-screen is essential bc it makes use of all the space on phone. Source: about 1 year ago
Librera reader, perhaps? https://librera.mobi/. Source: about 1 year ago
I personally use Librera on Android with google translate. Source: about 1 year ago
Or check out goodsync.com I think the free version might work as well. Source: over 2 years ago
ReadEra - Read book files in EPUB, PDF, DOC, DOCX, RTF, TXT, DJVU, FB2, MOBI and CHM formats.
FreeFileSync - FreeFileSync is a free open source data backup software that helps you synchronize files and folders on Windows, Linux and macOS.
FBReader - FBReader is an e-book reader for various platforms. Features:
rsync - rsync is a file transfer program for Unix systems. rsync uses the "rsync algorithm" which provides a very fast method for bringing remote files into sync.
calibre - Ebook manager, viewer & converter
Duplicati - Free backup software to store backups online with strong encryption. Works with FTP, SSH, WebDAV, OneDrive, Amazon S3, Google Drive and many others.