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Sensor Ipod
Tablet  Phone


USB adapter C to A


Prefered for casual users.
OBDII Bluetooth adapter with auto off.
Link for More info or Purchase.

Not as fast as wifi but more reliable generally.
Easier to setup

Highly Rated no auto off advertised
Link for More Info or Purchase

For shops or serious users.
OBDII wifi adapter with auto off.
More range. Faster, Local Network
Can be frustrating to set up.




Car Scanner ELM
Popular and Free
In the app store.
Car Scanner ELM OBD2 App Screenshot 1


If you wish to clear codes many use Torque (video).
It does not have the best reviews but it has
the tools necessary for clearing codes. If the problem is persistant the light will 
return meaning that repairs are in order.


Pro level

Blue Driver

Pricey Interface

Number one Smart device  diagnostic
 tool on Amazon.

Application is in app store.
Substantial Diagnostic Database