How Rex works

Live OBD in, a clear answer out. Plug in your own adapter, and Rex reads live OBD-II data, stored codes, freeze-frame, and the session you already saved.

Rex ranks likely causes and gives you a test plan: each test says what confirms the cause and what rules it out. You stay in the driver's seat of the diagnosis.

When the job is clear, you can turn it into a quote. The same login and the same sessions work on the Android app and on the web.