| archive sharing | document exchange
storage unit | share | folder
storage subunit | archive set | directory (nested)
storage object | archive | file
file synchronization | no | yes
file attributes preservation | yes | modification time only
annotations | yes | directory only
versioning level | archive | folder
cooperative administration | yes | no
expiration/autodelete | no | no
transfer size | unlimited | unlimited
resuming of interrupted transfers | yes | yes
users managed by owner | yes | yes
user upload | yes | yes
users may delete objects | yes | no
anonymous usage | optional | optional
web interface | yes | yes
CLI | yes | yes
notification of new uploads | optional | optional