In order to use the synchronisation service and sync files between a computer and Google Drive storage, users must have Google Drive client software running on their computer. This software then communicates with Google Drive in order to sync files.
A professional version of the service is called Google Drive for Work and features unlimited storage, advanced file audit reporting and eDiscovery services. Business users can upload files as large as 5 TB. For organisations with less than 5 users, there is a 1 TB limit per user.
As of 2015, Google claimed that they had over one million paid users of Google Drive.
