Comparison

Viecar 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

Viecar

This app connects to your vehicle's ECU via Bluetooth to perform comprehensive diagnostics and health checks. It helps identify potential issues early, analyze fuel consumption, and track driving behavior for improved efficiency and safety.

Highlights
  • 360° vehicle physical examination
  • Early detection of vehicle sub-health
  • Historical fuel consumption analysis
  • Driving behavior recording and analysis
  • Bluetooth 4.0 dual-mode connectivity
  • Low power consumption
Features
Read full description

Viecar 4.0 is a "software + hardware" multi-functional, all-round vehicle high-tech car detection tool. It adopts Bluetooth 4.0 dual-mode design, perfectly supports iOS devices, supports high-speed data transmission, and has low power consumption and ultra-power saving. advantage. By connecting the car ECU computer interface to achieve 360° full vehicle physical examination, early detection of vehicle sub-health can also ensure that the vehicle is found to be faulty as early as possible during the warranty period, so as to timely deal with the relevant interests and protect the interests of the owner; Historical fuel consumption and other multi-dimensional fuel consumption analysis and evaluation, so that owners can save money and save money; can also record driving behavior, analyze vehicle condition data, propose improvements, timely correct bad driving habits, and enable drivers to use their own car more humane. .

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

Viecar2 screens
ChkOBD OBD2 Analyzer4 screens

Verdict

The call

The clearest difference is rating: Viecar at 4.0 against ChkOBD OBD2 Analyzer's 3.0. Viecar also leads on in-app purchases (none vs 4) and update cadence (every 4 weeks vs every 3 months). ChkOBD OBD2 Analyzer's advantage is ratings volume (4 vs 1). On price, 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. Viecar asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Viecar holds the better App Store score, 4.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

UpkeepUpdate frequency

Viecar ships an update every 4 weeks, ChkOBD OBD2 Analyzer every 3 months. The most recent releases landed on October 11, 2026 and October 13, 2026 respectively.

Scorecard6 real differences · 4 level
Viecar versus ChkOBD OBD2 Analyzer: the parameters behind the verdict, then further details
ParameterViecarChkOBD OBD2 Analyzer
PriceFreeFree
Rating4.0 (1 ratings) — better3.0 (4 ratings)
Positive reviews20.0% of reviews—
Number of ratings14 — better
Update frequencyEvery 4 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better13.0
Further details — not scored
Size39 MB63 MB
Age rating4+4+
DeveloperShenzhen Chaoyue Technology Development Co.,LtdCheck On-Board Diagnostics LLC

Customer experience

Viecar

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive20.0%
Neutral0.0%
Negative80.0%

ChkOBD OBD2 Analyzer

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

In-app purchases

None

Viecar

No 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

Questions

Is Viecar free?
Viecar is free to download, with no in-app purchases.
Is ChkOBD OBD2 Analyzer free?
ChkOBD OBD2 Analyzer is free to download, with in-app purchases available.
Which has better reviews, Viecar or ChkOBD OBD2 Analyzer?
Viecar is rated higher. Viecar averages 4.0 out of 5 from 1 ratings, while ChkOBD OBD2 Analyzer averages 3.0 from 4 ratings.
Do Viecar or ChkOBD OBD2 Analyzer have ads?
Neither Viecar nor ChkOBD OBD2 Analyzer shows ads.
Which is updated more often, Viecar or ChkOBD OBD2 Analyzer?
Viecar ships an update every 4 weeks, and ChkOBD OBD2 Analyzer every 3 months. Most recently, Viecar was updated on October 11, 2026 and ChkOBD OBD2 Analyzer on October 13, 2026.

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