Comparison

ThinkDiag+ vs AirCheck BLE

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

AirCheck BLE

Enhance your vehicle's reliability by monitoring tire pressure. This app helps you detect potential issues early by providing real-time tire status, preventing serious problems before they arise.

Highlights
  • Real-time tire pressure monitoring
  • Early problem detection
  • Vehicle reliability enhancement
  • Tire Pressure Monitor integration
Read full description

AirCheck BLE is designed to help your older vehicles become more reliable and aware. By installing Tire Pressure Monitors into your vehicles wheels you'll have the power to identify a problem before it becomes serious.

Screenshots

ThinkDiag+4 screens
AirCheck BLE4 screens

Verdict

The call

The clearest difference is rating: ThinkDiag+ at 4.5 against AirCheck BLE's 3.2. ThinkDiag+ also leads on review sentiment (74% vs 33%) and ratings volume (4.3K vs 9). AirCheck BLE's advantage is monetization model (free vs free with in-app purchases). On price, update cadence, ads and in-app purchases 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

ThinkDiag+ holds the better App Store score, 4.5 against 3.2. That said, the two scores are not equally well evidenced: ThinkDiag+ has 4.3K ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 74% of ThinkDiag+'s written reviews are positive against 33% of AirCheck BLE's.

UpkeepUpdate frequency

ThinkDiag+ ships an update every 3 weeks, AirCheck BLE fortnightly. The most recent releases landed on October 19, 2026 and October 2, 2026 respectively.

Scorecard5 real differences · 5 level
ThinkDiag+ versus AirCheck BLE: the parameters behind the verdict, then further details
ParameterThinkDiag+AirCheck BLE
PriceFreeFree
Rating4.5 (4.3K ratings) — better3.2 (9 ratings)
Positive reviews74.1% of reviews — better33.3% of reviews
Number of ratings4.3K — better9
Update frequencyEvery 3 weeksFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better16.6
Further details — not scored
Size539 MB97 MB
Age rating17+4+
DeveloperTHINKCAR INCSchrader International GmbH

Customer experience

ThinkDiag+

All ratings4,308 ratings
Positive88.1%
Neutral2.7%
Negative9.2%
Written reviews278 reviews
Positive74.1%
Neutral2.5%
Negative23.4%

AirCheck BLE

All ratings9 ratings
Positive55.6%
Neutral0.0%
Negative44.4%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

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

AirCheck BLE

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

ThinkDiag+

No in-app purchases

None

AirCheck BLE

No in-app purchases

Questions

Is ThinkDiag+ free?
ThinkDiag+ is free to download, with no in-app purchases.
Is AirCheck BLE free?
AirCheck BLE is free to download, with no in-app purchases.
Which has better reviews, ThinkDiag+ or AirCheck BLE?
ThinkDiag+ is rated higher. ThinkDiag+ averages 4.5 out of 5 from 4.3K ratings, while AirCheck BLE averages 3.2 from 9 ratings.
Do ThinkDiag+ or AirCheck BLE have ads?
Neither ThinkDiag+ nor AirCheck BLE shows ads.
Which is updated more often, ThinkDiag+ or AirCheck BLE?
ThinkDiag+ ships an update every 3 weeks, and AirCheck BLE fortnightly. Most recently, ThinkDiag+ was updated on October 19, 2026 and AirCheck BLE on October 2, 2026.

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