Comparison

OBD JScan vs ELMCheck

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

Head to head
About

OBD JScan

This app provides advanced diagnostics for Jeep, Chrysler, and Dodge vehicles. It allows users to read and clear trouble codes, view live sensor data, and access settings across all vehicle modules, including ABS and transmission.

Highlights
  • Read/Clear Diagnostic Trouble Codes
  • Access Live Data from all sensors
  • View vehicle settings
  • Access all vehicle modules (ABS, Transmission, etc.)
  • Identify module, VIN, Part Number, and Version
  • Share vehicle trouble codes
Features
Read full description

What is OBD JScan? OBD JScan is powerful Jeep & Chrysler & Dodge diagnostic application. JScan allows reading standard Diagnostic Trouble Codes (emission related), general Live Data and Adaptations and much more. Thats not all. JScan can access all modules avalable on your vehicle. ABS, Steering Column, Automatic Transimmsion, Radio, Sway Bar, Havac and many more. Some supported cars: Jeep Wrangler JK, Jeep Wrangler JL - additional hardware required to bypass security gateway* Jeep Wrangler JT - additional hardware required to bypass security gateway* Jeep Wrangler 4XE - additional hardware required to bypass security gateway* Jeep Grand Cherokee WK Jeep Grand Cherokee, WK2 11-13 Jeep Grand Cherokee WK2 14-21 - 18+ - additional hardware required to bypass security gateway* Jeep Commander XK Jeep Liberty/Cherokee KK, Jeep Compass, Jeep Patriot MK Dodge Avenger Dodge Grand Caravan RT, Dodge Journey, Dodge Caliber Dodge Durango 2004-2009 Dodge Durango 2011-2013 Dodge Durango 2014-2023* Dodge Ram Dodge Nitro Dodge Magnum Dodge Challenger - 08-14 Dodge Challenger - 14+ Dodge Charger- 06-10 Dodge Charger- 11+ Dodge Avenger Chrysler Town&Country RT Chrysler 200 Chrysler 300C Chrysler 300 Chrysler Sebring Chrysler Aspen and more.. * WK2 2018+ = requires securit bypass cable * Dodge Durango 2018+ = requires securit bypass cable * Dodge Ram 2018+ = requires securit bypass cable * JL requires security bypass cable * JT requires security bypass cable * http://jscan.net/jl-jt-security-bypass/ What can I Do with JScan? JScan allows you to access, diagnostic trouble codes and Live Data in all modules. You can easily Read, Clear, Share vehicle Trouble Codes. View Live Data from all sensors in vehicle. View vehicle settings. Identify module, Vin, Part Number, Version and more. Recommended device: - OBD ELM 327 compatible device is required to make app work as expected. Recommended adapters: - iCar Pro 4.0 Bluetooth LE (Bluetooth) - Vlinker MC+ (Bluetooth) - for newer cars - OBD Link MX+ Bluetooth (Bluetooth) More info about supported and recommended OBD adapters: http://jscan.net/supported-and-not-supported-obd-adapters/ Facebook: https://www.facebook.com/obdjscan/ Website: http://jscan.net/

About

ELMCheck

Verify the authenticity and functionality of your OBD-II scanner. This app runs comprehensive tests on ELM327 commands to report supported features, ensuring safe and reliable use with your vehicle.

Highlights
  • Authenticity testing for OBD-II scanners
  • Comprehensive ELM327 command test suite
  • Reports actual supported features
  • Ensures safe scanner usage
  • Basic tests are free
  • Unlock full suite with in-app purchase
Features
Read full description

Check the authenticity of your OBD-II scanner with ELMCheck. Most OBD-II scanners on the market use some variation of ELM327, but did you know that many scanners use clones of the original ELM327? It can be hard to tell, because these clones will work well enough for basic use but fail in unexpected scenarios. This is where ELMCheck comes in. ELMCheck offers a comprehensive set of test cases that cover the entire documented set of ELM327 commands. Regardless of which version your scanner says it is, ELMCheck can provide a comprehensive report of the features that are actually supported. Get the confidence you need to use your OBD-II scanner on your vehicle safely. ELMCheck is free to run basic tests. An in-app purchase will unlock the full test suite.

Screenshots

OBD JScan4 screens
ELMCheck4 screens

Verdict

The call

The clearest difference is ratings volume: OBD JScan at 1.3K against ELMCheck's 1. OBD JScan also leads on iOS requirement (13.0 vs 18). ELMCheck's advantage is rating (5.0 vs 4.7) and review sentiment (100% vs 79%). 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. OBD JScan sells 7 one-off in-app purchases and ELMCheck sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

ELMCheck holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: OBD JScan has 1.3K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 79% of OBD JScan's written reviews are positive against 100% of ELMCheck's.

UpkeepUpdate frequency

OBD JScan ships an update every 3 weeks, ELMCheck every 10 days. The most recent releases landed on September 22, 2026 and September 16, 2026 respectively.

Scorecard4 real differences · 6 level
OBD JScan versus ELMCheck: the parameters behind the verdict, then further details
ParameterOBD JScanELMCheck
PriceFreeFree
Rating4.7 (1.3K ratings)5.0 (1 ratings) — better
Positive reviews79.4% of reviews100.0% of reviews — better
Number of ratings1.3K — better1
Update frequencyEvery 3 weeksEvery 10 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS13.0 — better18
Further details — not scored
Size402 MB6 MB
Age rating12+4+
DeveloperPiotr BialicFearless design, LLC

Customer experience

OBD JScan

All ratings1,295 ratings
Positive93.4%
Neutral1.9%
Negative4.6%
Written reviews238 reviews
Positive79.4%
Neutral5.0%
Negative15.5%

ELMCheck

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

OBD JScan

Reported bugs

2 issues
  • Inability to save/export diagnostic data
  • Inconsistent behavior when changing vehicle settings

Requested features

4 requests
  • Expanded vehicle compatibility
  • Improved stability and reliability
  • Enhanced user interface and guidance
  • Integration with other vehicle apps/services

ELMCheck

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

OBD JScan

One-time7
  • + 1 garage license2 variants$9.99
  • 1 VIN license$20.99
  • Add 1 VIN$20.99
Show 4 more
  • Add 1 VIN Vehicle Slot$20.99
  • 3 VIN licenses$54.99
  • 5 VIN Licenses$84.99
  • 10 VIN Licenses$149.99
1 purchases

ELMCheck

One-time1
  • Comprehensive testing$2.99

Questions

Is OBD JScan free?
OBD JScan is free to download, with in-app purchases available.
Is ELMCheck free?
ELMCheck is free to download, with in-app purchases available.
Which has better reviews, OBD JScan or ELMCheck?
ELMCheck is rated higher. OBD JScan averages 4.7 out of 5 from 1.3K ratings, while ELMCheck averages 5.0 from 1 ratings.
Do OBD JScan or ELMCheck have ads?
Neither OBD JScan nor ELMCheck shows ads.
Which is updated more often, OBD JScan or ELMCheck?
OBD JScan ships an update every 3 weeks, and ELMCheck every 10 days. Most recently, OBD JScan was updated on September 22, 2026 and ELMCheck on September 16, 2026.

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