Comparison

OBDII Trouble Codes Lite 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

OBDII Trouble Codes Lite

Access a comprehensive database of OBD II diagnostic trouble codes. Quickly look up definitions for generic and manufacturer-specific codes without an internet connection. Easily copy and share code descriptions.

Highlights
  • Extensive OBD II code definitions
  • Offline access
  • No car model selection needed
  • Copy and share descriptions
  • Supports generic and manufacturer codes
Features
Read full description

This app is the most complete OBD II (EOBD) diagnostic trouble code definitions database. This is an ad-supported Lite version, which contains only 2553 description of generic codes (P0...). If extended code is accessible in full version, you will get message "This description is available in FULL version" If you want to get all descriptions you can buy FULL version, which contains more than 18500 error descriptions for almost 50 car manufacturers. Very simple to use! You don't even have to select your car model. Just enter your fault code and app will show you all supported descriptions. No Internet connection needed, no longer spend hours to search for single code description, looking at check engine light. If you have cable, bluetooth or WiFi OBDII code reader (ELM327, PLX Kiwi or any other) you need this app for code description because most of code scanners does not contain full DTC (diagnostic trouble code) database and displays only meaningfull numbers. Be prepared for any troubles wherever you are! You can select and copy error description with simple long press on text, and then paste it in SMS, e-mail or wherever you want! If your car supports OBD II or EOBD, then you can already use almost 5000 generic OBDII codes. These codes are from PowerTrain series (P0XXX, P2XXX, P34XX), Body Series (B0XXX), Chassis series (C0XXX), Network series (U0XXX, U2XXX, U3XXX). Also there is a list of more than 13500 additional manufacturer specific codes. Supported manufacturers with specific codes: Acura Alfa Romeo BMW Chrysler / Dodge / Jeep Citroen / Peugeot Daewoo Fiat Ford Geo GM (Buick, Cadillac, Chevrolet, GMC, Hummer, Pontiac) Honda Hyundai Infinity Isuzu Jaguar Kia Lamborghini Land Rover Lexus Lincoln Mazda Mercedes Mercury Mini Mitsubishi Nissan Oldsmobile Opel / Vauxhall Plymouth Porsche Renault (DF codes) Saab Saturn Scion Subaru Suzuki Toyota Volskwagen Audi Group Volvo Note, that it is impossible to create complete OBD DTC database. Manufacturers are adding new codes and changing old ones. So if you cannot find your code or if you think that some code not correct anymore, please write us!

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

OBDII Trouble Codes Lite3 screens
ChkOBD OBD2 Analyzer4 screens

Verdict

The call

The clearest difference is rating: ChkOBD OBD2 Analyzer at 3.0 against OBDII Trouble Codes Lite's 2.1. ChkOBD OBD2 Analyzer also leads on ads (none vs shown) and update cadence (every 3 months vs every 25 months). OBDII Trouble Codes Lite's advantage is monetization model (ad-supported vs free with in-app purchases). On price, ratings volume, in-app purchases and device support 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. OBDII Trouble Codes Lite sells 1 one-off in-app purchase 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

ChkOBD OBD2 Analyzer holds the better App Store score, 3.0 against 2.1. Both are backed by a comparable volume of ratings — 7 and 4 respectively.

UpkeepUpdate frequency

OBDII Trouble Codes Lite ships an update every 25 months, ChkOBD OBD2 Analyzer every 3 months. The most recent releases landed on October 23, 2026 and October 13, 2026 respectively.

Scorecard5 real differences · 5 level
OBDII Trouble Codes Lite versus ChkOBD OBD2 Analyzer: the parameters behind the verdict, then further details
ParameterOBDII Trouble Codes LiteChkOBD OBD2 Analyzer
PriceFreeFree
Rating2.1 (7 ratings)3.0 (4 ratings) — better
Positive reviews31.3% of reviews—
Number of ratings7 — better4
Update frequencyEvery 25 monthsEvery 3 months — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size54 MB63 MB
Age rating4+4+
DeveloperOleg ChumakovCheck On-Board Diagnostics LLC

Customer experience

OBDII Trouble Codes Lite

All ratings7 ratings
Positive28.6%
Neutral0.0%
Negative71.4%
Written reviews32 reviews
Positive31.3%
Neutral6.3%
Negative62.5%

ChkOBD OBD2 Analyzer

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

In-app purchases

1 purchases

OBDII Trouble Codes Lite

One-time1
  • Full version$2.99
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 OBDII Trouble Codes Lite free?
OBDII Trouble Codes Lite 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, OBDII Trouble Codes Lite or ChkOBD OBD2 Analyzer?
ChkOBD OBD2 Analyzer is rated higher. OBDII Trouble Codes Lite averages 2.1 out of 5 from 7 ratings, while ChkOBD OBD2 Analyzer averages 3.0 from 4 ratings.
Do OBDII Trouble Codes Lite or ChkOBD OBD2 Analyzer have ads?
OBDII Trouble Codes Lite shows ads; ChkOBD OBD2 Analyzer does not.
Which is updated more often, OBDII Trouble Codes Lite or ChkOBD OBD2 Analyzer?
OBDII Trouble Codes Lite ships an update every 25 months, and ChkOBD OBD2 Analyzer every 3 months. Most recently, OBDII Trouble Codes Lite was updated on October 23, 2026 and ChkOBD OBD2 Analyzer on October 13, 2026.

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