Diag vs ThinkDriver
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Diag
This diagnostic software package is designed for BENZ vehicles. It requires the MaxiAP200 main program to function, enabling detailed vehicle diagnostics.
- BENZ vehicle diagnostics
- Requires MaxiAP200
- Diagnostic software package
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Diagnostic software package for BENZ vehicles, which requires to work with the main program MaxiAP200 together.
ThinkDriver
This diagnostic tool allows car owners to perform full system vehicle checks, going beyond standard OBDII functionality. It provides immediate insights into potential car issues, acting as a comprehensive helper for vehicle maintenance.
- Full system vehicle diagnostics
- Advanced OBDII alternative
- Immediate issue detection
- DIY car maintenance helper
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THINKDRIVER, a DIY diagnostic product, which is extremely close to professional diagnostic tools, goodbye to normal OBDII dongle. THINKDRIVER can let all car owners to test the full system of the vehicle, much more than the OBDII. Now, THINKDRIVER will be the best helper for every car owner! This is the ultimate car diagnostic connector that allows you to easily and immediately know whether you should be aware of any issues with your car.
Screenshots
Verdict
The clearest difference is review sentiment: ThinkDriver at 58% against Diag's 0%. ThinkDriver also leads on rating (4.5 vs 2.8) and ratings volume (282 vs 12). Diag's advantage is monetization model (free vs paid). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
ThinkDriver holds the better App Store score, 4.5 against 2.8. That said, the two scores are not equally well evidenced: ThinkDriver has 282 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 0% of Diag's written reviews are positive against 58% of ThinkDriver's.
Diag ships an update every 2 months, ThinkDriver monthly. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.
| Parameter | Diag | ThinkDriver |
|---|---|---|
| Price | Free | Free |
| Rating | 2.8 (12 ratings) | 4.5 (282 ratings) — better |
| Positive reviews | 0.0% of reviews | 57.6% of reviews — better |
| Number of ratings | 12 | 282 — better |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 234 MB | 325 MB |
| Age rating | 4+ | 17+ |
| Developer | Autel Intelligent Technology Co., Ltd. | THINKCAR INC |
Customer experience
Diag
ThinkDriver
Bugs and requests
Diag
Not enough reviews yet to summarise bugs or requests.
ThinkDriver
Reported bugs
10 issues- Keeps shutting down during scan
- Scanner does not work
- Not working with 2022 subscription update
- Device won't work after getting a new phone
- Keeps asking to activate device, then pay again
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- Doesn't recognize older cars (pre-2014)
- App ALWAYS crashes
- Machine doesn't read VIN
- App falls when needing special functions
- Doesn't work when VIN manual entry fails
Requested features
2 requests- Add payment with Apple Cash
- Install just a code scanner icon
In-app purchases
Diag
No in-app purchases
ThinkDriver
No in-app purchases
