Ref No. FAQ-A7
You can buy any ELM327 OBD-adapter, but, please, be warned that the correct operation of the App with Chinese ELM327-adapters v2.1 is not guaranteed since many of these adapters do not meet the specifications. Sometimes defective adapters v2.1 are sold as adapters v1.5. In this case, there may be errors and incorrect data output when you connect to the vehicle.
The following adapter types are supported:
Android App:
– Bluetooth adapters
– Wi-Fi adapters
IOS App
– Wi-Fi adapters