The ProStart (2020 and up) does not require Velocitek Control Center.
Velocitek Control Center is a free application for Windows and Mac OSX that lets you download GPS data from a ProStart Classic or SpeedPuck (prior to 2020), version 3.0 features direct track uploads to ChartedSails.
Requirements (Mac Version)
OSX 10.10 (Yosemite) or later
Requirements (Windows Version)
Windows 8 or later
To replay the data downloaded from a Velocitek device we recommend ChartedSails.