Librum Alternatives

Librum is described as 'A clean and simple way to read your books on any device and build your own online library' and is a PDF Reader in the news & books category. There are more than 50 alternatives to Librum for a variety of platforms, including Android, Windows, Android Tablet, Linux and Mac apps. The best Librum alternative is calibre, which is both free and Open Source. Other great apps like Librum are Readest, MuPDF, Librera Reader and KOReader.