Comparison

ChkOBD OBD2 Analyzer vs OBD GO

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

Head to head
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.

About

OBD GO

This app helps you understand your car's diagnostic trouble codes by translating them into plain English and offering validated fixes. It supports a wide range of vehicles and provides detailed reports, graphing, and logging of data streams.

Highlights
  • Scan and clear trouble codes
  • Generate and share diagnosis reports
  • Translate cryptic code definitions
  • Vehicle coverage for major brands
  • Mode 6 and Smog Readiness checks
  • Interactive data graphing and logging
  • Wireless Bluetooth connection
Features
Read full description

OBD GO is a specialist OBD2 scan app. It is friendly for personal user, auto enthusiasts and professional mechanics to use. Let OBD GO help you understand your car better, translate the confusing trouble code into simple and plain English, it is time to hug this new generation repair method, no more wasting time on internet unreliable fixes. Features: • Scan trouble codes • Clear trouble codes • Generate, print, and share Diagnosis Reports • Vehicle coverage: GM, Ford, Chrysler, Toyota, Nissan, Mazda, Mercedes, Mitsubishi, Hyundai/Kia, BMW/Mini, Honda/Acura, Volkswagen/Audi, Subaru. • Mode 6 (On-Board Monitoring Test Results) • Smog Readiness Check • Freeze Frame Data • Multiple data streams interactive graphing and logging • Wireless bluetooth connection with vehicle • Metric and Imperial settings -OBD GO Diagnosis Report- A OBD GO Diagnosis Report is specific to your vehicle's year, make and model. Providing a cryptic code definition by giving you validated fixes for your trouble codes. Save time by using OBD GO to know your vehicle how to repair in advance. -Important Info- OBD GO is a professional scan tool and the APP is free to install, but it does require the purchase of sensor to communicate with your vehicle. Sensor simply connects to your data port located inside your car near the steering wheel. Every car made since 1996 is global compatible can be used anywhere in the world.

Screenshots

ChkOBD OBD2 Analyzer4 screens
OBD GO4 screens

Verdict

The call

The clearest difference is rating: OBD GO at 4.6 against ChkOBD OBD2 Analyzer's 3.0. OBD GO also leads on in-app purchases (none vs 4) and ratings volume (15 vs 4). On price, update cadence, ads 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. ChkOBD OBD2 Analyzer sells 4 in-app purchases, starting at $4.99 per month. OBD GO asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

OBD GO holds the better App Store score, 4.6 against 3.0. Both are backed by a comparable volume of ratings — 4 and 15 respectively.

UpkeepUpdate frequency

ChkOBD OBD2 Analyzer ships an update every 3 months, OBD GO every 2 months. The most recent releases landed on October 13, 2026 and October 1, 2026 respectively.

Scorecard5 real differences · 5 level
ChkOBD OBD2 Analyzer versus OBD GO: the parameters behind the verdict, then further details
ParameterChkOBD OBD2 AnalyzerOBD GO
PriceFreeFree
Rating3.0 (4 ratings)4.6 (15 ratings) — better
Positive reviews—50.0% of reviews
Number of ratings415 — better
Update frequencyEvery 3 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.010.0 — better
Further details — not scored
Size63 MB103 MB
Age rating4+17+
DeveloperCheck On-Board Diagnostics LLCOBD GO TECH CO LTD

Customer experience

ChkOBD OBD2 Analyzer

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

OBD GO

All ratings15 ratings
Positive86.7%
Neutral6.7%
Negative6.7%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

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
None

OBD GO

No in-app purchases

Questions

Is ChkOBD OBD2 Analyzer free?
ChkOBD OBD2 Analyzer is free to download, with in-app purchases available.
Is OBD GO free?
OBD GO is free to download, with no in-app purchases.
Which has better reviews, ChkOBD OBD2 Analyzer or OBD GO?
OBD GO is rated higher. ChkOBD OBD2 Analyzer averages 3.0 out of 5 from 4 ratings, while OBD GO averages 4.6 from 15 ratings.
Do ChkOBD OBD2 Analyzer or OBD GO have ads?
Neither ChkOBD OBD2 Analyzer nor OBD GO shows ads.
Which is updated more often, ChkOBD OBD2 Analyzer or OBD GO?
ChkOBD OBD2 Analyzer ships an update every 3 months, and OBD GO every 2 months. Most recently, ChkOBD OBD2 Analyzer was updated on October 13, 2026 and OBD GO on October 1, 2026.

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