Don't download unless you want to lose info on what books you own and who has your books. Maybe you want to end up getting your books stolen. Not me. DANGEROUS WASTE OF TIME! DELETE! I loved this application and entered much of my library into it. Would have recommended it to anyone - glad I didn't though. I backed up my database to an SD card like it says to.When I got a new phone and transferred the settings over  the database I'd spent so long creating was gone. I tried to restore from the SD card. The app  which encouraged me to back up this way  was the only app on my phone that didn't recognize external SD card. So  database lost as well as records of who has borrowed my books.
January 08 2015