Insync Plus

For consumers

$ 20

one-time

Per Google account
15-day free trial
 

Windows, Mac & Linux
Command line client
Windows Server 2003, 2008, 2012

Unlimited installs

Email support in 5 business days
Free upgrades for 1.x versions

Insync Pro

For professionals

$ 20

per year

3 Google accounts
$10/year per extra account
15-day free trial

Windows, Mac & Linux
Command line client
Windows Server 2003, 2008, 2012

Unlimited installs

Email support in 3 business days
Free upgrades for all versions

Account management

Insync Business

For organizations

$ 20

per year

Per Google account
15-day free trial
 

Windows, Mac & Linux
Command line client
Windows Server 2003, 2008, 2012

Unlimited installs

Email support in 2 business days
Free upgrades for all versions

Member management
License management
Centralized billing
Import Google Apps employees
MSI package support
Push through group policy A/D