Comparison

OBD2 Scanner | OBD Auto Doctor vs TeCar

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

Transform your iPhone into a car diagnostic tool. Read and clear engine trouble codes, monitor live engine data, and check emissions readiness with a compatible OBD2 dongle.

Highlights
  • Read and clear diagnostic trouble codes (DTCs)
  • Monitor live engine data
  • Check emissions readiness
  • View freeze-frame data
  • Create custom sensor dashboards
  • Works with compatible OBD2 dongles
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

TeCar

This service transforms vehicles into smart cars with a plug-and-play device for enhanced maintenance and fleet management. It offers affordable solutions to optimize time and cost for the automotive industry.

Highlights
  • Vehicle maintenance tracking
  • Smart vehicle conversion
  • Fleet management
  • Real-time monitoring
  • OBDII device integration
  • Cost and time optimization
Features
Read full description

Tecar is a tailored service focused in addressing solution for automobile & service industry, TeCar enhances customer services by keeping their vehicle safe and maintained through converting it to a smart vehicle by installation of our plug & play device ( OBDII) . TeCar is specialised in customer value proposition (CVP) Tecar enhances its value by providing complete fleet management and monitoring solutions with an affordable time & cost. We offer a free 2 weeks trial and in-app purchases for upgrade storage plan. All users have 2 GB Storage for free. The amount will be charged to your iTunes account and will vary by plan and country. You’ll see the total price before completing payment. TeCar subscriptions purchased in-app renew monthly depending on your plan. Plan pricing may vary by country. To avoid renewal, you must turn off auto-renew at least 24 hours before your subscription ends. You can turn off auto-renew at any time from your iTunes account settings. Terms of Service: https://admin.tecar.com.co/serviceagreement.html Privacy Policy: https://admin.tecar.com.co/privacy-policy.html

Screenshots

OBD2 Scanner | OBD Auto Doctor4 screens
TeCar4 screens

Verdict

The call

The clearest difference is rating: OBD2 Scanner | OBD Auto Doctor at 4.4 against TeCar's 2.0. OBD2 Scanner | OBD Auto Doctor also leads on review sentiment (30% vs 4%) and ratings volume (6.2K vs 4). TeCar's advantage is iOS requirement (12.0 vs 17.0). On price, ads, in-app purchases and monetization model 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 TeCar sells 4 in-app purchases, starting at $1.99 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 2.0. That said, the two scores are not equally well evidenced: OBD2 Scanner | OBD Auto Doctor has 6.2K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 30% of OBD2 Scanner | OBD Auto Doctor's written reviews are positive against 4% of TeCar's.

UpkeepUpdate frequency

OBD2 Scanner | OBD Auto Doctor ships an update every 3 weeks, TeCar every 2 months. Both last shipped on November 6, 2026.

Scorecard5 real differences · 5 level
OBD2 Scanner | OBD Auto Doctor versus TeCar: the parameters behind the verdict, then further details
ParameterOBD2 Scanner | OBD Auto DoctorTeCar
PriceFreeFree
Rating4.4 (6.2K ratings) — better2.0 (4 ratings)
Positive reviews30.3% of reviews — better4.3% of reviews
Number of ratings6.2K — better4
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.012.0 — better
Further details — not scored
Size19 MB143 MB
Age rating4+4+
DeveloperCreosysROADMASTER INTERNATIONAL TRADING L.L.C

Customer experience

OBD2 Scanner | OBD Auto Doctor

All ratings6,230 ratings
Positive84.4%
Neutral4.1%
Negative11.4%
Written reviews577 reviews
Positive30.3%
Neutral8.3%
Negative61.4%

TeCar

All ratings4 ratings
Positive25.0%
Neutral0.0%
Negative75.0%
Written reviews23 reviews
Positive4.3%
Neutral8.7%
Negative87.0%

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

TeCar

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
4 purchases

TeCar

Subscriptions4
  • 5 GB Subscription14 Days trial$1.991 Month
  • 10 GB Subscription14 Days trial$2.991 Month
  • 50 GB Subscription14 Days trial$14.991 Month
Show 1 more
  • 100 GB Subscription14 Days trial$25.991 Month

Questions

Is OBD2 Scanner | OBD Auto Doctor free?
OBD2 Scanner | OBD Auto Doctor is free to download, with in-app purchases available.
Is TeCar free?
TeCar is free to download, with in-app purchases available.
Which has better reviews, OBD2 Scanner | OBD Auto Doctor or TeCar?
OBD2 Scanner | OBD Auto Doctor is rated higher. OBD2 Scanner | OBD Auto Doctor averages 4.4 out of 5 from 6.2K ratings, while TeCar averages 2.0 from 4 ratings.
Do OBD2 Scanner | OBD Auto Doctor or TeCar have ads?
Neither OBD2 Scanner | OBD Auto Doctor nor TeCar shows ads.
Which is updated more often, OBD2 Scanner | OBD Auto Doctor or TeCar?
OBD2 Scanner | OBD Auto Doctor ships an update every 3 weeks, and TeCar every 2 months. Most recently, OBD2 Scanner | OBD Auto Doctor was updated on November 6, 2026 and TeCar on November 6, 2026.

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