Ive been storing all my books on Onedrive. I have 30gigs of free space and everthing is accessible on my iphone, ipad, laptop (MBP) and 2 Windows 10 machines.
I have a Google Drive account, a Drop box, an iCoud and 2 One drive accounts. IMHO the Onedrive has the most free storage and seems to work the best and is easy to use.
|