Box Sync and Box Drive are two separate desktop applications that give users the ability to access Box content from the user's desktop environment. There are a few differences between the applications that may make one more suited to your needs than the other.
Box Drive Vs. Box Sync
Box Drive is an unlimited cloud drive. You can an unlimited number of files from your desktop without needing to take up much of your actual Hard Drive space. Work with these files in the cloud just as if they were on your desktop through Finder. Whether you create a new Microsoft Word document or edit a PDF in Adobe, any changes you make will automatically save back to Box. You can also right-click any file or folder to leverage collaborative Box features such as sharing, locking and creating Box Notes.
Box Sync allows you to mirror data stored on Box to your desktop. You can edit content stored on the Box website through your computer's native file browsing interface, without using a web browser. Content that syncs down to your computer are available for offline access.
Known Issue: Due to reported software incompatibility, Box recommends uninstalling Box Sync from your computer before installing Box Drive. Box Sync is set to be retired and is only used for instances when you need to work on files when you have no internet access.