CrushDrive	CrushSync	Cloud Sync Providers
Data Ownership	Own your data	Own your data	Third party holds the data and promises to be careful...
Storage Fees	No fees	No fees	Pay per GB of data stored
Connection	LAN / WAN	LAN / WAN	WAN Only
Data Location	Server Only	Local / Server	Local / Server
Web Access	Yes	Yes	Yes
Access Restrictions	Yes	Yes	Limited
Bandwidth Acceleration	Yes	Yes	No
Encrypted / Secure	Yes	Yes	Yes
Users Accessing Server	Users you create	Users you create	Millions of unrelated users sharing access on the same server...
AD/LDAP Integration	Yes	Yes	No
Additional Secure Protocols	FTPES/SFTP/SCP/HTTPS/WebDAV	FTPES/SFTP/SCP/HTTPS/WebDAV	None
Support	Direct email, emergency telephone 24x7	Direct email, emergency telephone 24x7	Often forum based, non committal, slow response times...

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* This comparison table is meant to illustrate some of the areas not normally mentioned about cloud providers. The key issue is that you trust your data on a third party who maintains a policy to keep your data safe, and promises to be good about how they handle your data.