Start communicating with your vehicle immediately!

Over 30,000 car owners have chosen OBD Auto Doctor.

Free

For evaluation and getting started

$0 /yr

Get started

Read OBD2 Diagnostic Trouble Codes
Check Readiness Monitors
Figure out what your car has to offer

Personal

For every auto enthusiasts

/yr

Choose Personal

Everything in Free, plus

Access Freeze Frame
Reset OBD2 Trouble Codes
Clear the Check Engine Light
All live data parameters

Professional

For power users and Do It Yourself mechanics

/yr

Choose Professional

Everything in Personal, plus

Oxygen Sensor Monitors
On-Board Diagnostic Monitors
On-Board Service Activation
In-use Performance Tracking
Diverse parameter data views

Notice that in addition to the software, you need an ELM327-based OBD-II adapter to connect to your vehicle.

Pricing plan comparison
Feature by Plans	Free	Personal	Professional
Trouble Codes
Confirmed DTCs (service 0x03)	Included in Free	Included in Personal	Included in Professional
Pending DTCs (service 0x07)	Included in Free	Included in Personal	Included in Professional
Permanent DTCs (service 0x0A)	Included in Free	Included in Personal	Included in Professional
Freeze Frame (service 0x02)	Not included in Free	Included in Personal	Included in Professional
Clear DTCs and MIL (service $04)	Not included in Free	Included in Personal	Included in Professional
Save/Share diagnostic information	Included in Free	Included in Personal	Included in Professional
Search Trouble Codes (DTC Database)	Included in Free	Included in Personal	Included in Professional
Manufacturer specific DTCs	Not included in Free	Included in Personal	Included in Professional
Diagnostics
Readiness Monitors since MIL reset	Included in Free	Included in Personal	Included in Professional
Readiness Monitors for this drive cycle	Included in Free	Included in Personal	Included in Professional
Oxygen Sensor Monitors (service 0x05)	Not included in Free	Not included in Personal	Included in Professional
On-Board Diagnostic Monitors (service 0x06)	Not included in Free	Not included in Personal	Included in Professional
On-Board Service Activation (service 0x08)	Not included in Free	Not included in Personal	Included in Professional
In-use Performance Tracking (service 0x09)	Not included in Free	Not included in Personal	Included in Professional
Monitoring
Sensors, live data	limited	Included in Personal	Included in Professional
Sensor data logging, export data in csv format	Not included in Free	Included in Personal	Included in Professional
Sensor Graph	limited	Included in Personal	Included in Professional
Export Sensor Graph as image	Not included in Free	Included in Personal	Included in Professional
Sensor Graph Grid	Not included in Free	Not included in Personal	Included in Professional
Histogram	Not included in Free	Not included in Personal	Included in Professional
Electronic Control Unit Information
OBD requirements and the bus protocol	Included in Free	Included in Personal	Included in Professional
ECU name and description	Included in Free	Included in Personal	Included in Professional
Vehicle Identification Number	Not included in Free	Included in Personal	Included in Professional
Calibration Identifications	Not included in Free	Included in Personal	Included in Professional
Calibration Verification Numbers	Not included in Free	Included in Personal	Included in Professional
Engine Serial Number	Not included in Free	Included in Personal	Included in Professional
Exhaust Regulation Or Type Approval Number	Not included in Free	Included in Personal	Included in Professional
Extras
Console	Not included in Free	Included in Personal	Included in Professional
Data Log	Not included in Free	Included in Personal	Included in Professional
General
Support for multiple control units	Included in Free	Included in Personal	Included in Professional
Gasoline and Diesel engines	Included in Free	Included in Personal	Included in Professional
Metric and Imperial (US) units	Included in Free	Included in Personal	Included in Professional
Choose your plan	Get started	Choose Personal	Choose Professional

Please notice that all of the OBD2 features require that your vehicle supports them too. Morever, not all features are available in the mobile apps but only in the computer software.

Frequently asked questions

How can I upgrade/downgrade my plan?: We are still working on implementing the self service site. In the meantime, just get in touch with our email support and we'll handle it for you.
Can I cancel at anytime?: Yes, of course. There's no minimum contract — you can cancel at any time. When you cancel your paid plan, you will remain on the plan until the end of your billing cycle, at which time you'll be switched back to the Free plan.