MASTER tool, reads/writes files in .HPT format, compatible with VCM Editor. VCM Scanner - Diagnostic and advanced real time data logger tool, which is completely free! VCM Editor - Flash tool and editor functions operate on a credit based licensing system.
Credits are used as currency to purchase licenses for the different modules and licensing a module gives you the ability to tune it. The number of credits necessary to purchase a license varies depending on the vehicle. You can find a complete list of supported vehicles and credit costs here.