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.
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.
- 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
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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
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.
- Vehicle maintenance tracking
- Smart vehicle conversion
- Fleet management
- Real-time monitoring
- OBDII device integration
- Cost and time optimization
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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
Verdict
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
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.
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.
OBD2 Scanner | OBD Auto Doctor ships an update every 3 weeks, TeCar every 2 months. Both last shipped on November 6, 2026.
| Parameter | OBD2 Scanner | OBD Auto Doctor | TeCar |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (6.2K ratings) — better | 2.0 (4 ratings) |
| Positive reviews | 30.3% of reviews — better | 4.3% of reviews |
| Number of ratings | 6.2K — better | 4 |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 19 MB | 143 MB |
| Age rating | 4+ | 4+ |
| Developer | Creosys | ROADMASTER INTERNATIONAL TRADING L.L.C |
Customer experience
OBD2 Scanner | OBD Auto Doctor
TeCar
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
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- Integrate with vehicle maintenance scheduling
TeCar
Not enough reviews yet to summarise bugs or requests.
In-app purchases
OBD2 Scanner | OBD Auto Doctor
- Monthly (legacy)$4.991 Month
- Personal, monthly$4.991 Month
- Premium, monthly$5.991 Month
Show 5 moreShow fewer
- 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
- OBD Auto Doctor Pro (legacy)$29.99
TeCar
- 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 moreShow fewer
- 100 GB Subscription14 Days trial$25.991 Month
Questions
Is OBD2 Scanner | OBD Auto Doctor free?
Is TeCar free?
Which has better reviews, OBD2 Scanner | OBD Auto Doctor or TeCar?
Do OBD2 Scanner | OBD Auto Doctor or TeCar have ads?
Which is updated more often, OBD2 Scanner | OBD Auto Doctor or TeCar?
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