Dropbox works across MacOS X, iOS, Windows, Linux, Android, and Blackberry. Currently, your first 3.5 GB of storage are free. If you need more than 3.5 GB of storage, then you must pay. Your data reside in a local folder on each system on which you have the
Dropbox client installed and linked. Your data are also stored on
Dropbox's server. When you change data in your
Dropbox folder on one device, the change is synchronized across all devices and the
Dropbox server. You may access your data on the server by logging into your account on the
Dropbox website. As with other filesharing sites, you may share a file in your
Dropbox folder by sending the file's
Dropbox website URL to those with whom you share.