The LITE version (FREE) is ideal for "getting your feet wet" with computer navigation, or for occasional boat users (or desktop sailors) who don't require much more than plotting the boat's position on a chart. Or those who know their local cruising grounds so well that a chart is superfluous, but will be thankful for the powerful navigation tools in SOB (such as Wpts, chart notes, TTG and distance calculations etc).

A Trial/Registered user can evaluate all SOB features for a full month. Allowing sufficient time to address the various issues involved with computerised navigation along the way - choosing a laptop/desktop and mounting it onboard; connecting your NMEA enabled instruments to the PC; and sorting out your power-supply issues, etc.

A SOB User License is required to continue to use SOB beyond the trial period with the licensed features enabled.

A Standard License is ideal for the typical weekend-sailor or cruiser with minimum instruments and electronics onboard and mostly short coastal legs in familiar waters, and for use in areas with minimal commercial traffic or without AIS receiver capabilities.

The Pro License is recommended for Power Users (of both boats and IT) example a keen club racer with strong computer/navigation skills and enjoys electronics! This version would be recommended for the following example users: offshore passaging or extended cruising; any professionals; commercial operators ; VTS Base Stations; remote ship monitoring and any and all networked configurations.