Rex. Your senior tech in the passenger seat. Rex is an AI diagnostic assistant for independent techs and mobile mechanics. Connect an ELM327 OBD-II adapter over USB, Bluetooth, or Wi-Fi. Read live data and fault codes, then work the problem with a guided test plan. Rex ranks likely causes, explains fault codes in plain language, and tells you what confirms a cause and what rules it out. Diagnostic sessions stay on your account. You bring your own OBD-II adapter. Rex runs on Windows 10 and Windows 11 and needs an internet connection for AI analysis.
Utilities · Windows, Android · Free
