Comparison

OBDII Trouble Codes Lite vs ThinkCar Bay

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

ThinkCar Bay

This service application supports THINKCAR automotive diagnostic products. It offers tutorials, case studies, after-sales service, and online viewing of diagnostic reports. Manage your products and get assistance with their use.

Highlights
  • Product tutorials
  • Case studies
  • After-sales service
  • User product management
  • Online diagnostic report viewing
Features
Read full description

Thinkcar bay is a service application for THINKCAR brand products, providing users who have purchased various types of automotive diagnostic products with tutorials, case studies, after-sales service, user product management and online viewing of diagnostic reports for various products, providing assistance to users in the process of using the products.

Screenshots

OBDII Trouble Codes Lite3 screens
ThinkCar Bay4 screens

Verdict

The call

The clearest difference is rating: ThinkCar Bay at 3.3 against OBDII Trouble Codes Lite's 2.1. ThinkCar Bay also leads on in-app purchases (none vs 1) and ads (none vs shown). On price, ratings volume 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. ThinkCar Bay asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ThinkCar Bay holds the better App Store score, 3.3 against 2.1. Both are backed by a comparable volume of ratings — 7 and 3 respectively. Written reviews point the same way: 31% of OBDII Trouble Codes Lite's written reviews are positive against 50% of ThinkCar Bay's.

UpkeepUpdate frequency

OBDII Trouble Codes Lite ships an update every 25 months, ThinkCar Bay every 5 months. The most recent releases landed on August 24, 2026 and July 19, 2026 respectively.

Scorecard7 real differences · 3 level
OBDII Trouble Codes Lite versus ThinkCar Bay: the parameters behind the verdict, then further details
ParameterOBDII Trouble Codes LiteThinkCar Bay
PriceFreeFree
Rating2.1 (7 ratings)3.3 (3 ratings) — better
Positive reviews31.3% of reviews50.0% of reviews — better
Number of ratings7 — better3
Update frequencyEvery 25 monthsEvery 5 months — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationAd-supportedFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.69.0 — better
Further details — not scored
Size54 MB215 MB
Age rating4+17+
DeveloperOleg ChumakovTHINKCAR INC

Customer experience

OBDII Trouble Codes Lite

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

ThinkCar Bay

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

1 purchases

OBDII Trouble Codes Lite

One-time1
  • Full version$2.99
None

ThinkCar Bay

No in-app purchases

Questions

Is OBDII Trouble Codes Lite free?
OBDII Trouble Codes Lite is free to download, with in-app purchases available.
Is ThinkCar Bay free?
ThinkCar Bay is free to download, with no in-app purchases.
Which has better reviews, OBDII Trouble Codes Lite or ThinkCar Bay?
ThinkCar Bay is rated higher. OBDII Trouble Codes Lite averages 2.1 out of 5 from 7 ratings, while ThinkCar Bay averages 3.3 from 3 ratings.
Do OBDII Trouble Codes Lite or ThinkCar Bay have ads?
OBDII Trouble Codes Lite shows ads; ThinkCar Bay does not.
Which is updated more often, OBDII Trouble Codes Lite or ThinkCar Bay?
OBDII Trouble Codes Lite ships an update every 25 months, and ThinkCar Bay every 5 months. Most recently, OBDII Trouble Codes Lite was updated on August 24, 2026 and ThinkCar Bay on July 19, 2026.

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