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.
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.
- Extensive OBD II code definitions
- Offline access
- No car model selection needed
- Copy and share descriptions
- Supports generic and manufacturer codes
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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!
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.
- View engine values
- In-app purchase for advanced data
- Smog Check Assistant
- VIN Analyzer
- Error Decoder and Reset
- Bluetooth adapter compatibility check
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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
Verdict
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
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.
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.
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.
| Parameter | OBDII Trouble Codes Lite | ChkOBD OBD2 Analyzer |
|---|---|---|
| Price | Free | Free |
| Rating | 2.1 (7 ratings) | 3.0 (4 ratings) — better |
| Positive reviews | 31.3% of reviews | — |
| Number of ratings | 7 — better | 4 |
| Update frequency | Every 25 months | Every 3 months — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 54 MB | 63 MB |
| Age rating | 4+ | 4+ |
| Developer | Oleg Chumakov | Check On-Board Diagnostics LLC |
Customer experience
OBDII Trouble Codes Lite
ChkOBD OBD2 Analyzer
In-app purchases
OBDII Trouble Codes Lite
- Full version$2.99
ChkOBD OBD2 Analyzer
- Smog Check Assistant$4.991 Month
- VIN Analyzer$1.99
- Error Analyzer$2.99
- Advance Engine Values$4.99
Questions
Is OBDII Trouble Codes Lite free?
Is ChkOBD OBD2 Analyzer free?
Which has better reviews, OBDII Trouble Codes Lite or ChkOBD OBD2 Analyzer?
Do OBDII Trouble Codes Lite or ChkOBD OBD2 Analyzer have ads?
Which is updated more often, OBDII Trouble Codes Lite or ChkOBD OBD2 Analyzer?
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