What is the Best OBD2  blutooth connector 2023 and what is the best OBDII software 2023 The best OBDII SOFTWARE AND BLUTOOTH connector for car scanner and diagnostic in 2023 1. Diagzone that can work with many connector like thinkdiag old boot, launch golo, easydiag.3 easydiag 4 ..etc 2. Thinkdiag runs on thinkcar software 2