Comparison

ThinkCar 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

ThinkCar

This app connects to a compatible OBD2 scan tool to diagnose vehicle issues and provide detailed health reports. It offers real-time data, full system inspections, and a community forum for car enthusiasts and mechanics.

Highlights
  • Real-time vehicle data dashboard
  • Full OBD2 functions (10 modes)
  • Enhanced full vehicle systems inspection
  • OBD2 data recording (Black Box)
  • Online community for car enthusiasts
Features
Read full description

Scan to know your vehicle and say goodbye to unknown check engine lights! (ThinkCar1 or 1S is required.) Nowadays vehicle repair and maintenance is expensive. You need a premium powerful scan tool which you can trust. Thinkcar is a professional OBD2 scan tool which provides full OBD functions and enhanced full vehicle modules health report. It also featured with premium functions like Real-Time Remote Diagnostic, vehicle Black Box (OBD data recording) and Online Community. Those unique premium features will bring your scan experience to next level. Our Thinkcar APP is free for installation. Thinkcar adapter will read vehicle data through OBD2 port, and transfer them to Thinkcar App via Bluetooth for review. We apply same diagnostic technology from Launch Tech, which is the world leader in vehicle diagnostic industry, **Features(ThinkCar1 or 1S is required.) 1. Real-time dashboard Vehicle useful data will be displayed in the form of meters and graphs on the phone to show the vehicle status, which is vivid, professional and clear at a glance. 2. Powerful diagnostic and inspection functions 2-1 Full OBD2 functions (10 modes): • Read trouble code • Clear trouble code • I/M Readiness / SMOG check • Multi data stream (PIDs) graphing • Freeze frame data • Mode 6 (On-Board Monitoring Test Results) • Oxygen sensor monitoring 2-2 Enhanced full vehicle systems inspection, one-key clear code: Enhanced full vehicle inspection will scan all vehicle modules including engine, transmission, ABS, SRS, TPMS and more. Wide coverage which nobody can match, Acura, Alfa Romeo, Audi, Bentley, BMW, Bugatti, Buick, Cadillac, Chevrolet, Chrysler, Dodge, Fiat, Ford, GMC, Honda, Hyundai, Infiniti, Jaguar, Jeep, Kia, Lamborghini, Lancia, Land Rover, Lexus, Lincoln, Maybach, Mazda, Mercedes Benz, Mercury, MINI, Mitsubishi, Nissan, Opel, Peugeot, Pontiac, Ram, Rolls Royce, Saturn, Toyota, Volkswagen, Volvo. Once scan is completed, will generate a certified vehicle health report by Thinkcar. The report contains details of all systems of the vehicle. If there is something wrong of the vehicle, the report will have a detailed fault description, so that you will know about the cause of the fault and perform needed maintenance and repair. 2-3 Black box (OBD2 data recording) Thinkcar can record OBD2 live data while the vehicle is running, so technicians can play back/review saved data to find the faults quickly and easily. 3. Online community: Thinkcar App offers a social media platform for vehicle owners, DIYers, professional mechanics to share useful tips and get help from others. On our community, there are tremendous useful tips, fun pictures and videos waiting for you to discover. No purchase is needed to visit our community, just simply download/install our Thinkcar App and register an account. JOIN US TODAY!

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

ThinkCar4 screens
ChkOBD OBD2 Analyzer4 screens

Verdict

The call

The clearest difference is in-app purchases: ThinkCar at none against ChkOBD OBD2 Analyzer's 4. ThinkCar also leads on update cadence (monthly vs every 3 months) and ratings volume (49 vs 4). On price, rating, 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. ThinkCar asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ChkOBD OBD2 Analyzer holds the better App Store score, 3.0 against 2.8. That said, the two scores are not equally well evidenced: ThinkCar has 49 ratings behind it against 4, so its average is the more settled of the two.

UpkeepUpdate frequency

ThinkCar ships an update monthly, ChkOBD OBD2 Analyzer every 3 months. The most recent releases landed on October 14, 2026 and October 13, 2026 respectively.

Scorecard5 real differences · 5 level
ThinkCar versus ChkOBD OBD2 Analyzer: the parameters behind the verdict, then further details
ParameterThinkCarChkOBD OBD2 Analyzer
PriceFreeFree
Rating2.8 (49 ratings)3.0 (4 ratings) — better
Positive reviews36.7% of reviews—
Number of ratings49 — better4
Update frequencyMonthly — betterEvery 3 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS9.0 — better13.0
Further details — not scored
Size234 MB63 MB
Age rating17+4+
DeveloperTHINKCAR INCCheck On-Board Diagnostics LLC

Customer experience

ThinkCar

All ratings49 ratings
Positive40.8%
Neutral8.2%
Negative51.0%
Written reviews30 reviews
Positive36.7%
Neutral10.0%
Negative53.3%

ChkOBD OBD2 Analyzer

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

In-app purchases

None

ThinkCar

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 ThinkCar free?
ThinkCar 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, ThinkCar or ChkOBD OBD2 Analyzer?
ChkOBD OBD2 Analyzer is rated higher. ThinkCar averages 2.8 out of 5 from 49 ratings, while ChkOBD OBD2 Analyzer averages 3.0 from 4 ratings.
Do ThinkCar or ChkOBD OBD2 Analyzer have ads?
Neither ThinkCar nor ChkOBD OBD2 Analyzer shows ads.
Which is updated more often, ThinkCar or ChkOBD OBD2 Analyzer?
ThinkCar ships an update monthly, and ChkOBD OBD2 Analyzer every 3 months. Most recently, ThinkCar was updated on October 14, 2026 and ChkOBD OBD2 Analyzer on October 13, 2026.

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