Their site advertises the following: --------------------snip------------------ If you already own an ELM-based OBD-II interface, then you definitely need to experience it with ProScan! You'll immediately be wondering how you managed to live without it! PrScan is the most advanced software available for ELM-based OBD-II hardware! Another benefit of purchasing ProScan is a lifetime of free software upgrades! --------------------snip------------------ I purchased the product and because it didn't work, I contacted... read full review »