Currently there is a few main players on the market who working in developing the odometer adjustment tools. They all claim "We are the best!" Please consider the following while selecting the appropriate supplier: price, software update flow and coverage to your region, options provided by tools such as ability to backup/transfer/edit files, ability to use tools as a stand-along programmer, tech support (!!!). Some companies ready to communicate only while you shopping the tools, but will be silent if you have technical questions! Keep it in mind. Smelecom is always online and provides customers with immediate assistance via Skype of email.