Comparison

iOBD2 vs OBD2 Car Scanner

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

Head to head
About

iOBD2

Transform your iPhone or iPad into a powerful vehicle diagnostic tool. Read engine data, check for issues, and monitor real-time performance metrics like fuel consumption and acceleration. Customize your dashboard to display only the information you care about.

Highlights
  • Read and clear diagnostic trouble codes (DTCs)
  • Access live engine data
  • View freeze frame data
  • Monitor readiness test status
  • Read vehicle information (VIN, CALID, CVN)
  • Perform O2 sensor and EVAP system tests
  • Customize real-time dashboards
Features
Read full description

iOBD2 is an app for your car. It makes your iPhone/iPod touch/iPad into a cool vehicle diagnostic tool to read your engine data. 1. When you are driving and MIL is on, you can check your car and know whether you can go on or not. 2. When there are troubles with your car, you can check it yourself and know what the problems are, and then ask for help by twitter or facebook from others. 3. You can know real time information such as fuel consumption, torque, acceleration, etc from iOBD2 on your iPhone/iPod touch/iPad. 4. iOBD2 can customized your gauge and after select the data that you are interested in, it will show you only the data which you concern. 5. You can share the record what you get from the car by iOBD2 on twitter and facebook. !!Attention: 1.Please make sure that your vehicle is with OBD-II/EOBD compliance before purchasing! 2.You can upgrade your general iOBD2 to iOBD2-BMW or iOBD2-VAG when you only have iOBD2 hardware , and you only need to pay $80.00 for iOBD2-BMW or $30.00 for iOBD2-VAG without paying extra money for hardware. Buy multiple gauges iOBD2 with scream and best price! (Note: Not all OBD-II compliant vehicles support all these parameters) DISCLAIMER: After buy our iOBD2 hardware interface, and download iOBD2 App, then your iPhone/iPod touch/iPad can communicate with the vehicle. You can buy it on our ebay shop or amazon shop or contact our sales. Function: 1. Diagnostic [Read DTC]: Read the current DTC that engine has stored, and show DTC info. [Clear DTC]: Clear all the current DTC. [Live data]: Read all the running parameters that related to the ECU. [Freeze frame data]: When OBD system sets the DTC, it will record the system running parameters related to the malfunction at the same time. And these parameters are called freeze frame data. [Readiness test]: Readiness reflects the status that all the valid diagnostic functions. [Read vehicle info]: Read vehicle info such as Vehicle Identification Number (VIN), Calibration IDs (CALID) and Calibration Verification Number (CVN). [O2 Sensor test]: It allows access to the on-board oxygen sensor monitoring test results. The same information may be obtained by the use of [Mode 6 test]. [Mode 6 test]: It allows access to the results for on-board diagnostic monitoring tests of specific components/systems that are not continuously monitored. [EVAP System Test]: The purpose of this service is to enable the external test equipment to control the operation of an on-board system, test or component. 2. My dashboard [Idle mode]: engine rotational speed, water temperature, battery voltage, mass air flow, instant fuel consumption (static), ignition timing, ever wished you had your own customizable gauges, showing only the data you were interested in. [Cruise mode]: vehicle speed, vehicle travel time, vehicle travel average speed, continuous running mileage, avg. fuel consumption., ever wished you had your own customizable gauges, showing only the data you were interested in. [Sport mode]: engine rotational speed, vehicle speed, water temperature, ins. fuel consumption(dynamic), acceleration speed, ever wished you had your own customizable gauges, showing only the data you were interested in. [Performance mode]: engine rotational speed, vehicle speed, power, torque, horsepower, ever wished you had your own customizable gauges, showing only the data you were interested in. 3. Performance test [Accelerate/Decelerate test]: Test acceleration / deceleration process time and distance. [0 to 400m acceleration test]: Test spends time from 0 to 400 meters. 4. Settings You can set units, alarms, coefficient and also customized the dashboard here. 5. History After record the history data, you can share the record what you get from the car by iOBD2 on Twitter and facebook. Package Hardware: iOBD2 unit Software: iOBD2 client software on app store Visit the iOBD2 product page for more info: www.iobd2.com

About

OBD2 Car Scanner

Transform your smartphone into a professional car diagnostic tool. Read and clear engine fault codes, monitor real-time sensor data, and perform advanced diagnostics without a mechanic. Supports a wide range of OBD2 compliant vehicles.

Highlights
  • Read and clear engine fault codes
  • Monitor real-time sensor data
  • Turn off check engine light
  • VIN decoder
  • Acceleration performance test
  • Generate PDF diagnostic reports
Features
Read full description

EOBD Facile is the OBD2 car scanner trusted by over 5 million drivers. Connect an ELM327 Bluetooth or WiFi adapter and turn your smartphone into a professional OBD2 diagnostic tool - monitor engine torque, read fault codes, no mechanic needed. ◉ CHECK ENGINE LIGHT IS ON? Run a complete OBD2 car diagnostic in seconds. EOBD Facile reads and clears engine and transmission fault codes (DTCs) so you know exactly what's wrong. Our code database covers 15,000+ definitions, including manufacturer-specific codes for BMW, Audi, Volkswagen, Ford, Mercedes, Renault, Peugeot, Fiat, Opel, Kia, Nissan, Toyota, Volvo, Subaru, Jeep, Lexus and more. ◉ REAL-TIME OBD2 LIVE DATA Monitor your vehicle sensors in real time: engine RPM, coolant temperature, vehicle speed, ignition timing, engine torque, air intake, fuel pressure, EGR, DPF and more. Record sensor sessions and replay them for deeper analysis. ◉ OBD2 SCANNER FEATURES — Read and clear engine and transmission fault codes — Turn off the check engine light from your dashboard — Display manufacturer-specific error codes — Real-time engine torque, RPM and sensor monitoring with live graphs — VIN decoder for vehicle identification — Sensor coherence test for advanced diagnostics — Acceleration performance test (0-60 mph, 0-100 km/h) — Trip recording and data logging — Generate and share PDF diagnostic reports — Built-in ELM327 adapter quality test ◉ OBD2 COMPATIBLE VEHICLES Works with all vehicles compliant with the OBD2 standard (also referred to as OBD-II, OBD 2, EOBD or OBDii). Gasoline cars from 2001, diesel from 2004, and commercial vehicles from 2007 are supported. Thousands of cars verified by our community — check the full list on our website. ◉ EASY CONNECTION EOBD Facile connects to any standard ELM327 OBD2 Bluetooth or WiFi adapter, including klavkarr, Vgate, Veepeak and other compatible car code readers. Plug into your car's OBD 2 port, launch the app, and start scanning. Warning: Many cheap ELM327 clones sold online do not function correctly. Use our built-in adapter test to verify compatibility before buying a new one. Can't find your OBD2 port? Download our free app "Where is my OBD2 port?" to locate it. ◉ UNLOCK PLUS FOR PRO DIAGNOSTICS The PLUS version unlocks manufacturer-specific codes, unlimited sensor recording, PDF reports, VIN decoding, and sensor coherence testing — professional-grade OBD2 diagnostics in your pocket. Download EOBD Facile - the OBD2 car scanner trusted by 5 million+ drivers. ◉ klavkarr.com

Screenshots

iOBD24 screens
OBD2 Car Scanner4 screens

Verdict

The call

The clearest difference is rating: OBD2 Car Scanner at 4.6 against iOBD2's 2.9. OBD2 Car Scanner also leads on review sentiment (55% vs 23%) and ratings volume (5.1K vs 85). iOBD2's advantage is in-app purchases (none vs 3) and iOS requirement (6.0 vs 14.0). On price, update cadence, ads 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 Car Scanner sells 3 one-off in-app purchases. iOBD2 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

OBD2 Car Scanner holds the better App Store score, 4.6 against 2.9. That said, the two scores are not equally well evidenced: OBD2 Car Scanner has 5.1K ratings behind it against 85, so its average is the more settled of the two. Written reviews point the same way: 23% of iOBD2's written reviews are positive against 55% of OBD2 Car Scanner's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 5 weeks. The most recent releases landed on October 20, 2026 and October 23, 2026 respectively.

Scorecard5 real differences · 5 level
iOBD2 versus OBD2 Car Scanner: the parameters behind the verdict, then further details
ParameteriOBD2OBD2 Car Scanner
PriceFreeFree
Rating2.9 (85 ratings)4.6 (5.1K ratings) — better
Positive reviews23.4% of reviews54.6% of reviews — better
Number of ratings855.1K — better
Update frequencyEvery 5 weeksEvery 5 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS6.0 — better14.0
Further details — not scored
Size90 MB68 MB
Age rating4+4+
DeveloperShenzhen Yunjia Intelligence Technology Co., Ltd.OUTILS OBD FACILE SARL

Customer experience

iOBD2

All ratings84 ratings
Positive40.5%
Neutral10.7%
Negative48.8%
Written reviews197 reviews
Positive23.4%
Neutral9.1%
Negative67.5%

OBD2 Car Scanner

All ratings5,098 ratings
Positive89.9%
Neutral4.5%
Negative5.6%
Written reviews1,002 reviews
Positive54.6%
Neutral7.0%
Negative38.4%

User reviews

iOBD2

From 85 App Store ratings

What we love

  • 🚀 Works great
  • 👍 Wonderful app
  • 🚀 Excellent tool
  • 👍 Good product
  • 🚀 Awesome free app

Room to improve

  • 🐛 Doesn't work
  • 🐛 Crashes frequently
  • 🐛 Connection issues
  • 🐛 Unreliable
  • 🐛 Useless

OBD2 Car Scanner

From 5.1K App Store ratings

What we love

  • 👍 Helpful for diagnosing issues
  • 🚀 Easy to use and connect
  • 💡 Provides useful vehicle data
  • 🔍 Able to read and clear error codes

Room to improve

  • 💰 Expensive for full functionality
  • 🔒 Requires paid upgrade to access key features
  • 🐛 Connectivity issues and app crashes
  • 🚫 Limited functionality in free version

Bugs and requests

iOBD2

Reported bugs

4 issues
  • Crashes when checking DTCs
  • Fails to connect to Bluetooth/WiFi adapters
  • Incorrect sensor readings
  • Compatibility issues with newer vehicles

Requested features

5 requests
  • Update for newer iOS versions
  • More frequent updates
  • Support for more vehicle makes/models
  • Customizable dashboards
  • Live data for more sensors

OBD2 Car Scanner

Reported bugs

3 issues
  • Unable to connect to some OBD2 adapters
  • Incorrect or missing sensor data
  • Paid version not functioning as expected

Requested features

4 requests
  • Add support for more vehicle makes and models
  • Improve user interface and data visualization
  • Ability to reset service lights and perform more advanced diagnostics
  • Integrate with vehicle GPS for location-based data

In-app purchases

None

iOBD2

No in-app purchases

3 purchases

OBD2 Car Scanner

One-time3
  • Basic Edition$19.99
  • Upgrade to Plus Edition$20.99
  • Plus edition$39.99

Questions

Is iOBD2 free?
iOBD2 is free to download, with no in-app purchases.
Is OBD2 Car Scanner free?
OBD2 Car Scanner is free to download, with in-app purchases available.
Which has better reviews, iOBD2 or OBD2 Car Scanner?
OBD2 Car Scanner is rated higher. iOBD2 averages 2.9 out of 5 from 85 ratings, while OBD2 Car Scanner averages 4.6 from 5.1K ratings.
Do iOBD2 or OBD2 Car Scanner have ads?
Neither iOBD2 nor OBD2 Car Scanner shows ads.
Which is updated more often, iOBD2 or OBD2 Car Scanner?
iOBD2 ships an update every 5 weeks, and OBD2 Car Scanner every 5 weeks. Most recently, iOBD2 was updated on October 20, 2026 and OBD2 Car Scanner on October 23, 2026.

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