Comparison

EOBD Facile vs ChkOBD OBD2 Analyzer

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

Head to head
About

EOBD Facile

Turn your smartphone into a professional OBD2 diagnostic tool. Monitor engine torque, read and clear fault codes, and access real-time vehicle sensor data. Supports a wide range of vehicles and ELM327 adapters.

Highlights
  • Read and clear engine fault codes
  • Real-time sensor monitoring
  • VIN decoder
  • Acceleration performance test
  • Generate PDF diagnostic reports
  • ELM327 adapter quality test
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

About

ChkOBD OBD2 Analyzer

Connect your iPhone or iPad to your car's engine to view vital data. Access basic engine values for free, with in-app purchases for advanced diagnostics, smog check readiness, VIN analysis, and error decoding.

Highlights
  • View engine values
  • In-app purchase for advanced data
  • Smog Check Assistant
  • VIN Analyzer
  • Error Decoder and Reset
  • Bluetooth adapter compatibility check
Features
Read full description

ChkOBD let you connect your iPhone and iPad to your Car and view the most important Engine values in a very intuitive user interface in an appealing user-friendly way. ChkOBD connects wirelessly to an ELM237 enabled OBDII - Bluetooth adapter which is readily available from many 3rd party vendors. From this free application that let you have access to the basic “Engine Values”, you will have In-App purchase to access additional information such as : . Advanced Engine Values, an extended choice of sensors available on your car, that you can select and monitor. The available Engine Value from your car, are all listed in a “grey” mode, so, you will have no surprise of what you will get (or not get !) after the In App purchase . Smog Check Assistant, to know if your car will pass the next Smog Check at the state official station, or the App will let you know what needs to be fixed, before driving there, . VIN Analyzer, will let you know what information is in the “government file” from your car, including date and place of manufacturing, . Error Decoder and Reset, to know what is the current error that is in the Memory of the computer of your car and let you have a way to try to reset this error (Normally, it comes back on, if the cause of the error is not mechanically fixed). This is an error scan that is going through about 4'000 possible errors. Usually all these information will be read from all car that have been sold in the USA after 2005. The fact that these applications are offered from inside a free app, in our side, from this free app, we are able to check before any of your purchase, that your car and your Bluetooth adapter will be 100% compatible with these applications. We are using this technology to try to provide to our customers the best possible satisfaction.

Screenshots

EOBD Facile4 screens
ChkOBD OBD2 Analyzer4 screens

Verdict

The call

The clearest difference is rating: EOBD Facile at 4.6 against ChkOBD OBD2 Analyzer's 3.0. EOBD Facile also leads on ratings volume (5.2K vs 4) and update cadence (every 5 weeks vs every 3 months). ChkOBD OBD2 Analyzer's advantage is iOS requirement (13.0 vs 15.0). 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. EOBD Facile sells 3 one-off in-app purchases and ChkOBD OBD2 Analyzer sells 4 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

EOBD Facile holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: EOBD Facile has 5.2K ratings behind it against 4, so its average is the more settled of the two.

UpkeepUpdate frequency

EOBD Facile ships an update every 5 weeks, ChkOBD OBD2 Analyzer every 3 months. The most recent releases landed on November 1, 2026 and October 13, 2026 respectively.

Scorecard4 real differences · 6 level
EOBD Facile versus ChkOBD OBD2 Analyzer: the parameters behind the verdict, then further details
ParameterEOBD FacileChkOBD OBD2 Analyzer
PriceFreeFree
Rating4.6 (5.2K ratings) — better3.0 (4 ratings)
Positive reviews54.6% of reviews—
Number of ratings5.2K — better4
Update frequencyEvery 5 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size68 MB63 MB
Age rating4+4+
DeveloperOUTILS OBD FACILE SARLCheck On-Board Diagnostics LLC

Customer experience

EOBD Facile

All ratings5,157 ratings
Positive89.9%
Neutral4.5%
Negative5.6%
Written reviews1,002 reviews
Positive54.6%
Neutral7.0%
Negative38.4%

ChkOBD OBD2 Analyzer

All ratings4 ratings
Positive50.0%
Neutral0.0%
Negative50.0%

Bugs and requests

EOBD Facile

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

ChkOBD OBD2 Analyzer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

EOBD Facile

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

ChkOBD OBD2 Analyzer

Subscriptions1
  • Smog Check Assistant$4.991 Month
One-time3
  • VIN Analyzer$1.99
  • Error Analyzer$2.99
  • Advance Engine Values$4.99

Questions

Is EOBD Facile free?
EOBD Facile is free to download, with in-app purchases available.
Is ChkOBD OBD2 Analyzer free?
ChkOBD OBD2 Analyzer is free to download, with in-app purchases available.
Which has better reviews, EOBD Facile or ChkOBD OBD2 Analyzer?
EOBD Facile is rated higher. EOBD Facile averages 4.6 out of 5 from 5.2K ratings, while ChkOBD OBD2 Analyzer averages 3.0 from 4 ratings.
Do EOBD Facile or ChkOBD OBD2 Analyzer have ads?
Neither EOBD Facile nor ChkOBD OBD2 Analyzer shows ads.
Which is updated more often, EOBD Facile or ChkOBD OBD2 Analyzer?
EOBD Facile ships an update every 5 weeks, and ChkOBD OBD2 Analyzer every 3 months. Most recently, EOBD Facile was updated on November 1, 2026 and ChkOBD OBD2 Analyzer on October 13, 2026.

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