Comparison

ThinkDiag+ vs Toppal Security

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

Head to head
About

ThinkDiag+

This app provides professional-level vehicle diagnostics, offering features like reading/clearing fault codes, data flow analysis, and special maintenance functions. It supports a wide range of car brands and allows users to subscribe to specific diagnostic software. Connects via Bluetooth to your smartphone for intelligent vehicle analysis.

Highlights
  • OE-level diagnostic functions
  • Full OBD II diagnosis
  • Special maintenance functions
  • Supports 100+ vehicle brands
  • Automatic VIN reading
  • Professional diagnostic reports
  • In-app 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). Not only for "ThinkDiag" and "ThinkDiag 2" device, but also works for "ThinkDiag Mini", "ThinkDirver", and "Thinkcar Pro" devices. ThinkDiag, an innovative vehicle diagnostic tool, is specially designed for repair technicians, small and medium-sized repair shops, and DIYers, to achieve the original manufacturer level diagnostic performance. It supports more than 100 vehicle brands of diagnostic services, including 15 special maintenance reset functions. ThinkDiag is as good as those comprehensive diagnostic equipment costed thousands of dollars. ThinkDiag is also an intelligent diagnostic device. Connecting with smartphone via Bluetooth, it is controlled to work by app. In the app, there is a diagnostic software store, and users can subscribe for diagnostic software according to their needs. ***Contact Us W: www.mythinkcar.com E: service@mythinkcar.com P: +1 833-692-2766 2151 S Haven Ave Unit 203 Ontario CA 91761 USA

About

Toppal Security

Features
Read full description

Provide safety warnings for vehicles, check vehicle driving trajectory, safety reminders, vehicle positioning, and remote snapshot services through mobile phones. Note that to use this service, you need to scan the code to bind the Toppal Security APP on the vehicle. If you encounter problems in use, please contact us.

Screenshots

ThinkDiag+4 screens
Toppal Security3 screens

Verdict

The call

ThinkDiag+ and Toppal Security are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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.

UpkeepUpdate frequency

ThinkDiag+ ships an update every 3 weeks, Toppal Security every 5 weeks. The most recent releases landed on October 1, 2026 and September 24, 2026 respectively.

ScorecardNo meaningful differences
ThinkDiag+ versus Toppal Security: the parameters behind the verdict, then further details
ParameterThinkDiag+Toppal Security
PriceFreeFree
Rating4.5 (4.3K ratings) — better—
Positive reviews73.9% of reviews—
Number of ratings4.3K — better—
Update frequencyEvery 3 weeks — betterEvery 5 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.011.0 — better
Further details — not scored
Size539 MB63 MB
Age rating17+4+
DeveloperTHINKCAR INCShenzhen Tongxingzhe Technology Co., Ltd

Bugs and requests

ThinkDiag+

Reported bugs

3 issues
  • Failure to recognize VIN or vehicle information
  • Inability to clear certain error codes
  • Inconsistent performance across different devices

Requested features

4 requests
  • Improved user interface and navigation
  • More detailed troubleshooting guides
  • Expanded vehicle coverage and special functions
  • Offline mode for diagnostics

Toppal Security

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

ThinkDiag+

No in-app purchases

None

Toppal Security

No in-app purchases

Questions

Is ThinkDiag+ free?
ThinkDiag+ is free to download, with no in-app purchases.
Is Toppal Security free?
Toppal Security is free to download, with no in-app purchases.
Do ThinkDiag+ or Toppal Security have ads?
Neither ThinkDiag+ nor Toppal Security shows ads.
Which is updated more often, ThinkDiag+ or Toppal Security?
ThinkDiag+ ships an update every 3 weeks, and Toppal Security every 5 weeks. Most recently, ThinkDiag+ was updated on October 1, 2026 and Toppal Security on September 24, 2026.

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