Comparison

OBD2 Scanner | OBD Auto Doctor vs OBDocker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

OBD2 Scanner | OBD Auto Doctor

Diagnose your car's engine light issues and monitor real-time performance data. This app allows you to read and clear diagnostic trouble codes, track fuel consumption, and view sensor data. It's a comprehensive tool for understanding your vehicle's health.

Highlights
  • Read and clear OBD2 diagnostic trouble codes (DTC)
  • Reset Check Engine Light
  • Monitor real-time vehicle data and sensor readings
  • Track fuel consumption
  • Read readiness monitor status for emissions testing
  • Initiate service routines
  • Send diagnostic data via email
Read full description

Turn your iPhone into a powerful OBD2 car scanner and diagnose your vehicle yourself. Check why your Check Engine Light is on, read and clear diagnostic trouble codes, monitor live engine data, and check emissions readiness — all from your iPhone or iPad with a compatible OBD2 dongle. CHECK YOUR CHECK ENGINE LIGHT Don't guess what's wrong with your car. OBD Auto Doctor reads diagnostic trouble codes from your vehicle and provides detailed information to help you understand what they mean. • Read diagnostic trouble codes (DTCs) • Clear Check Engine Light codes • View detailed code descriptions • Read freeze-frame data MONITOR YOUR CAR IN REAL TIME See what's happening while your engine is running with live OBD2 data. • Engine RPM and vehicle speed • Coolant temperature • Fuel system and fuel trim data • Throttle position • Intake air and engine load • Oxygen sensor data • And many other vehicle parameters Create your own dashboard and choose exactly which sensors you want to monitor. CHECK EMISSIONS READINESS Preparing for an emissions or vehicle inspection? Check your vehicle's readiness monitors and see whether your car's emissions systems have completed their tests. WORKS WITH OBD2 DONGLES Connect OBD Auto Doctor to your vehicle using a compatible Bluetooth, Wi-Fi or Bluetooth Low Energy (BLE) OBD2 dongle. Compatible dongles include many ELM327-based adapters, OBDLink, Vgate, Linker, Veepeak and other compatible OBD2 interfaces. Please note: An OBD2 dongle is required to connect the app to your vehicle. Dongle compatibility and available features depend on your vehicle. MORE THAN JUST A CODE READER OBD Auto Doctor gives you access to the information your car's onboard diagnostic system makes available. • Read vehicle information • Monitor fuel consumption • View and record live sensor data • Read diagnostic trouble codes • Clear diagnostic trouble codes • Check emissions readiness • View freeze-frame data • Monitor vehicle performance Whether you're trying to understand a Check Engine Light, preparing your car for inspection, monitoring your engine, or simply want to know more about your vehicle, OBD Auto Doctor puts professional-style OBD2 diagnostics in your pocket. Download OBD Auto Doctor and start diagnosing your car today. SUBSCRIPTION OBD Auto Doctor offers optional subscriptions that unlock additional features. Terms of Use: https://www.obdautodoctor.com/terms

About

OBDocker

This app acts as a professional OBD2 car scanner, enabling users to diagnose, service, and customize their vehicles. It offers comprehensive diagnostic modes, real-time data monitoring, and various service functions like oil resets and battery registration.

Highlights
  • Triple-mode diagnostics (Full-Systems, Multi-Systems, Quick Scan)
  • Triple-mode live data monitoring (Health, Engine, Dash)
  • Full-cycle service functions (Emissions Pre-Check, Control Tests, Oil Reset, Battery Registration)
  • One-click car setting adjustments and retrofits
  • Supports a wide range of car brands and models
Read full description

Crafted with user-friendliness and power in mind, OBDocker is a professional OBD2 car scanner app that empowers you to diagnose, service, and customize your vehicles with ease and precision. ************************* KEY FEATURES → Triple-Mode Diagnostics ○ Full-Systems Diagnose: One-Click OE-Level full-systems diagnostics. ○ Multi-Systems Diagnose: Scan multiple systems through ECUs filtering such as TMS, SRS, ABS, TCM, BCM and many more. ○ Quick Scan: Swiftly read and clear engine fault codes to maintain a smooth drive. → Triple-Mode Live Data ○ Health Monitor: Track every systems performance by diving into real-time parameters. ○ Engine Monitor: Monitor your engine's performance. ○ Dash Monitor: Visualize your vehicle's metrics in real-time. → Full-Cycle Service ○ Emissions Pre-Check: Test your emissions and pass with confidence before your official check. ○ Control Tests: Perform EVAP Leak Test, DPF and Inducement System Reinitialization. ○ Oil Reset: Easily reset oil change reminders and maintenance lights to keep your car's records up to date. ○ Battery Registration: Register the battery replacement to notify the battery management. → On-Click Modification ○ Adjustments: Adjust different car settings and customize them by one-click. ○ Retrofits: Easily adapt additional vehicle parts after installation. ************************* OBD ADAPTERS OBDocker requires a compatible OBD adapter to work. We recommend the following for the best experience: - High Performance: Vlinker Series, OBDLink Series, MotorSure OBD Tool, Carista EVO. - Middle Performance: All genuine adapters compatible with ELM327 / ELM329, including Veepeak Series, Vgate iCar Series, UniCarScan, NEXAS, Carista, Rodoil ScanX, and more. - Low Performance (Not Recommended): Cheep Chinese clones ELM. ************************* SUPPORTED CARS OBDocker is compatible with a wide range of vehicles, covering both standard and advanced modes: - Standard Mode: Universal compatibility with OBD2 / OBD-II or EOBD vehicles worldwide. - Advanced Mode: Toyota, Lexus, Nissan, infiniti, Honda, Acura, Hyundai, Kia, Volkswagen, Audi, Skoda, SEAT, Mercedes-Benz, BMW, Mini, Porsche, Ford, Lincoln, Chevrolet, Cadillac, GMC, Buick. And still working really hard to add more… ************************* PLANS: OBDocker offers a free trial for full feature access. To unlock unlimited potential, choose from our Pro or Pro Max subscriptions. NOTE: Vehicle ECUs vary in the amount of sensors supported. This app can’t show you something, that is not provided by your car. Terms and Conditions: https://www.obdocker.com/terms-and-coditions Privacy Policy: https://www.obdocker.com/privacy-policy Apple Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

OBD2 Scanner | OBD Auto Doctor4 screens
OBDocker4 screens

Verdict

The call

The clearest difference is ratings volume: OBD2 Scanner | OBD Auto Doctor at 6.2K against OBDocker's 17. OBD2 Scanner | OBD Auto Doctor also leads on rating (4.4 vs 4.2). OBDocker's advantage is review sentiment (48% vs 30%) and iOS requirement (13.0 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. OBD2 Scanner | OBD Auto Doctor sells 9 in-app purchases, starting at $4.99 per month and OBDocker sells 7 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

OBD2 Scanner | OBD Auto Doctor holds the better App Store score, 4.4 against 4.2. That said, the two scores are not equally well evidenced: OBD2 Scanner | OBD Auto Doctor has 6.2K ratings behind it against 17, so its average is the more settled of the two. Written reviews complicate that: 30% of OBD2 Scanner | OBD Auto Doctor's written reviews are positive against 48% of OBDocker's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

OBD2 Scanner | OBD Auto Doctor ships an update every 4 weeks, OBDocker fortnightly. The most recent releases landed on September 23, 2026 and September 22, 2026 respectively.

Scorecard4 real differences · 6 level
OBD2 Scanner | OBD Auto Doctor versus OBDocker: the parameters behind the verdict, then further details
ParameterOBD2 Scanner | OBD Auto DoctorOBDocker
PriceFreeFree
Rating4.4 (6.2K ratings) — better4.2 (17 ratings)
Positive reviews30.3% of reviews48.4% of reviews — better
Number of ratings6.2K — better17
Update frequencyEvery 4 weeksFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.013.0 — better
Further details — not scored
Size19 MB238 MB
Age rating4+4+
DeveloperCreosysMotorsure. Inc

Customer experience

OBD2 Scanner | OBD Auto Doctor

All ratings6,181 ratings
Positive84.4%
Neutral4.1%
Negative11.4%
Written reviews575 reviews
Positive30.3%
Neutral8.3%
Negative61.4%

OBDocker

All ratings17 ratings
Positive70.6%
Neutral17.6%
Negative11.8%
Written reviews31 reviews
Positive48.4%
Neutral6.5%
Negative45.2%

Bugs and requests

OBD2 Scanner | OBD Auto Doctor

Reported bugs

4 issues
  • App crashes on launch
  • Fails to detect existing fault codes
  • Subscription issues and inability to cancel
  • Incompatible with certain OBD2 adapters

Requested features

6 requests
  • Add support for more vehicle makes and models
  • Improve Bluetooth/WiFi connectivity
  • Provide more detailed diagnostic information
  • Allow clearing of error codes without subscription
  • Add live data dashboards and graphs
Show 1 more
  • Integrate with vehicle maintenance scheduling

OBDocker

Not enough reviews yet to summarise bugs or requests.

In-app purchases

9 purchases

OBD2 Scanner | OBD Auto Doctor

Subscriptions8
  • Monthly (legacy)$4.991 Month
  • Personal, monthly$4.991 Month
  • Premium, monthly$5.991 Month
Show 5 more
  • Professional, monthly$6.991 Month
  • Yearly (legacy)$23.991 Year
  • Personal, yearly$23.991 Year
  • Professional, yearly$29.991 Year
  • Premium, annual3 Days trial$29.991 Year
One-time1
  • OBD Auto Doctor Pro (legacy)$29.99
7 purchases

OBDocker

Subscriptions6
  • OBD Pro (Monthly)$2.991 Month
  • OBD Pro Max (Monthly)$7.991 Month
  • OBD2 Pro (6 Months)$14.996 Months
Show 3 more
  • OBD Pro (Annual)7 Days trial$17.991 Year
  • Mechanic Access (Quarterly)$19.993 Months
  • OBD Pro Max (Annual)7 Days trial$47.991 Year
One-time1
  • OBD Pro Max (Permanent)$119.99

Questions

Is OBD2 Scanner | OBD Auto Doctor free?
OBD2 Scanner | OBD Auto Doctor is free to download, with in-app purchases available.
Is OBDocker free?
OBDocker is free to download, with in-app purchases available.
Which has better reviews, OBD2 Scanner | OBD Auto Doctor or OBDocker?
OBD2 Scanner | OBD Auto Doctor is rated higher. OBD2 Scanner | OBD Auto Doctor averages 4.4 out of 5 from 6.2K ratings, while OBDocker averages 4.2 from 17 ratings.
Do OBD2 Scanner | OBD Auto Doctor or OBDocker have ads?
Neither OBD2 Scanner | OBD Auto Doctor nor OBDocker shows ads.
Which is updated more often, OBD2 Scanner | OBD Auto Doctor or OBDocker?
OBD2 Scanner | OBD Auto Doctor ships an update every 4 weeks, and OBDocker fortnightly. Most recently, OBD2 Scanner | OBD Auto Doctor was updated on September 23, 2026 and OBDocker on September 22, 2026.

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