EZdiag vs ThinkDiag+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EZdiag
This diagnostic tool connects to your smartphone to perform full-system vehicle diagnostics. It offers bi-directional capabilities for quick and easy troubleshooting, with optional manufacturer-specific software available for purchase.
- Smartphone-based OBDII diagnostics
- Full-system diagnostics
- Bi-directional capabilities
- Manufacturer-specific software options
- Portable and powerful device
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EZdiag is a smart phone based OBDII diagnostic tool designed with the professional technician in mind. The device is small and portable, yet powerful enough to rival its competitors. Users have the option to purchase manufacturer specific carline software based on their needs. This feature allows for full-system diagnostics including bi-directional capabilities, quickly and easily from the convenience of your smart phone.
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.
- 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
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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
Screenshots
Verdict
The clearest difference is review sentiment: ThinkDiag+ at 74% against EZdiag's 8%. ThinkDiag+ also leads on rating (4.5 vs 1.6) and ratings volume (4.4K vs 42). EZdiag's advantage is iOS requirement (8.0 vs 13.0). 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.
ThinkDiag+ holds the better App Store score, 4.5 against 1.6. That said, the two scores are not equally well evidenced: ThinkDiag+ has 4.4K ratings behind it against 42, so its average is the more settled of the two. Written reviews point the same way: 8% of EZdiag's written reviews are positive against 74% of ThinkDiag+'s.
Both ship on a similar rhythm, roughly monthly. The most recent releases landed on November 2, 2026 and November 10, 2026 respectively.
| Parameter | EZdiag | ThinkDiag+ |
|---|---|---|
| Price | Free | Free |
| Rating | 1.6 (42 ratings) | 4.5 (4.4K ratings) — better |
| Positive reviews | 8.1% of reviews | 73.8% of reviews — better |
| Number of ratings | 42 | 4.4K — better |
| Update frequency | Monthly | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 17 MB | 543 MB |
| Age rating | 4+ | 17+ |
| Developer | Launch Tech Co., Ltd | THINKCAR INC |
Customer experience
EZdiag
ThinkDiag+
Bugs and requests
EZdiag
Not enough reviews yet to summarise bugs or 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
In-app purchases
EZdiag
No in-app purchases
ThinkDiag+
No in-app purchases
