Comparison

ThinkCar pro vs DND

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

Head to head
About

ThinkCar pro

This app provides professional-level vehicle diagnostics, including reading and clearing fault codes, accessing data streams, and performing special functions. It supports a wide range of car manufacturers and offers features like automatic VIN reading and report generation. Connect with other users in the community for support.

Highlights
  • OE-level professional functions
  • Full OBD II diagnosis
  • Maintenance light reset
  • Support for 39+ manufacturers
  • Automatic VIN reading
  • Fault code interpretation
  • Diagnostic report generation
  • User community
Features
Read full description

1. Profession functions refer to OE level functions, such as read/clear code, data flow diagram, read ECU, drive test, bidirectional special functions, etc. 2. Support full-function OBD II diagnosis, read data flow, freeze frame read IM/real-time data, read/clear fault code, vehicle on-board monitoring/computer system control operation and read vehicle information. 3. Support vehicle maintenance light return to normal. 4. Select any vehicle diagnostic software, covering up to 39 major automobile manufacturers. 5. Support automatic VIN reading and one-key diagnosis. 6. Clear interpretation of fault codes and generate professional diagnostic reports. 7. Be able to communicate with other users within the ThinkDiag community (share/help/support).

About

DND

This tool helps you understand your vehicle's health and diagnose issues. It provides comprehensive diagnostic services, maintenance guidance, and real-time sensor data monitoring, making car care accessible even for beginners.

Highlights
  • OBD functionality
  • Enhanced diagnosis
  • Vehicle maintenance guidance
  • Locate malfunction causes
  • AI services
  • Abnormal warnings
  • Real-time sensor data monitoring
Features
Read full description

DND is a professional vehicle diagnostic tool that provides comprehensive services such as OBD functionality, enhanced diagnosis, and vehicle maintenance, saving users time and money. It allows you to easily check the health status of your vehicle without having to go to a repair shop, quickly locate the cause of vehicle malfunctions, and provide users with comprehensive application services such as AI services and abnormal warnings. Get to know your vehicle better Become more knowledgeable about your vehicle and take good care of it. Gain greater confidence and peace of mind with Echo diagnostic tool and DND App in your pocket. Diagnose and repair with DND Discover why the Check Engine Light is on, provide maintenance guidance and reset the Diagnostic Trouble Codes. Save time and money by diagnosing the root cause without visiting a mechanic. Easily used even for beginners You can easily have professional repair and maintenance knowledge with intelligent by services, it can be easily used even for beginners. Monitor real-time sensor data Maintain the health of the your vehicle by monitoring the engine and various systems in real-time. Improve efficiency and prevent malfunctions.

Screenshots

ThinkCar pro2 screens
DND4 screens

Verdict

The call

The clearest difference is review sentiment: DND at 100% against ThinkCar pro's 62%. DND also leads on update cadence (every 8 days vs every 5 months) and rating (5.0 vs 4.6). ThinkCar pro's advantage is ratings volume (323 vs 1) and iOS requirement (9.0 vs 16.6). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

DND holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: ThinkCar pro has 323 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 62% of ThinkCar pro's written reviews are positive against 100% of DND's.

UpkeepUpdate frequency

ThinkCar pro ships an update every 5 months, DND every 8 days. The most recent releases landed on September 23, 2026 and September 17, 2026 respectively.

Scorecard5 real differences · 5 level
ThinkCar pro versus DND: the parameters behind the verdict, then further details
ParameterThinkCar proDND
PriceFreeFree
Rating4.6 (323 ratings)5.0 (1 ratings) — better
Positive reviews61.7% of reviews100.0% of reviews — better
Number of ratings323 — better1
Update frequencyEvery 5 monthsEvery 8 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPod — betteriPhone
Requires iOS9.0 — better16.6
Further details — not scored
Size325 MB339 MB
Age rating17+4+
DeveloperTHINKCAR INCMATL TECH INC.

Customer experience

ThinkCar pro

All ratings323 ratings
Positive89.5%
Neutral1.5%
Negative9.0%
Written reviews60 reviews
Positive61.7%
Neutral5.0%
Negative33.3%

DND

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

ThinkCar pro

Reported bugs

9 issues
  • App crashes and resets unexpectedly
  • TPMS functionality not working
  • Password registration issues
  • Slow app loading times
  • Graphs not rendering in engine parameters
Show 4 more
  • OBD2 value reading failures
  • Firmware update failures
  • ABS bleeding process extremely slow
  • App crashes after updates

Requested features

7 requests
  • PDF export and sharing functionality
  • Multiple parameters on single graph
  • Data export for external analysis
  • Support for LPG/LPI fuel vehicles
  • Support for VAZ vehicles
Show 2 more
  • Automatic VIN identification
  • Improved app stability and performance

DND

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

ThinkCar pro

No in-app purchases

None

DND

No in-app purchases

Questions

Is ThinkCar pro free?
ThinkCar pro is free to download, with no in-app purchases.
Is DND free?
DND is free to download, with no in-app purchases.
Which has better reviews, ThinkCar pro or DND?
DND is rated higher. ThinkCar pro averages 4.6 out of 5 from 323 ratings, while DND averages 5.0 from 1 ratings.
Do ThinkCar pro or DND have ads?
Neither ThinkCar pro nor DND shows ads.
Which is updated more often, ThinkCar pro or DND?
ThinkCar pro ships an update every 5 months, and DND every 8 days. Most recently, ThinkCar pro was updated on September 23, 2026 and DND on September 17, 2026.

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