ANCEL vs ThinkDiag+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ANCEL
This app connects to your car via an OBD2 Bluetooth scanner to diagnose faults, read data like fault codes and sensor readings, and clear error lights. It also offers battery health checks, a customizable dashboard, and driving assistance features. Some models support special functions like maintenance resets.
- OBD2 Bluetooth scanner connectivity
- Fault code reading and clearing
- Frozen frame and sensor data display
- Battery health and voltage detection
- Customizable dashboard
- Driving assistance functions
- Special functions (maintenance reset, etc.)
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ANCEL can read data from car with the OBD2 Bluetooth Scanner. It has a powerful fault diagnosis function, which can read fault codes, frozen frames, oxygen sensors and other data, and provide fault explanations, which can be used to clear the codes and turn off the Malfunction Indicator Lamp. With the necessary battery detection function, you can use the mobile phone screen to click to check the health and voltage of your battery. It supports OBD2 full-mode diagnosis, and also have a customizable dashboard and some driving assistance functions. For some models of scanner, some special functions are also supported, such as maintenance reset, replacement of brake pads, and throttle reset, etc. It is a powerful and simple operation vehicle detection and driving assistance tool. Welcome to download and use it.
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 ANCEL's 24%. ThinkDiag+ also leads on rating (4.5 vs 2.6) and ratings volume (4.3K vs 43). ANCEL's advantage is monetization model (free vs free with in-app purchases) and iOS requirement (9.0 vs 12.0). On price, ads, in-app purchases and device support 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 2.6. That said, the two scores are not equally well evidenced: ThinkDiag+ has 4.3K ratings behind it against 43, so its average is the more settled of the two. Written reviews point the same way: 24% of ANCEL's written reviews are positive against 74% of ThinkDiag+'s.
ANCEL ships an update every 2 months, ThinkDiag+ every 3 weeks. The most recent releases landed on August 1, 2026 and September 22, 2026 respectively.
| Parameter | ANCEL | ThinkDiag+ |
|---|---|---|
| Price | Free | Free |
| Rating | 2.6 (43 ratings) | 4.5 (4.3K ratings) — better |
| Positive reviews | 23.5% of reviews | 73.6% of reviews — better |
| Number of ratings | 43 | 4.3K — better |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 402 MB | 539 MB |
| Age rating | 4+ | 17+ |
| Developer | OBDSPACE TECHNOLOGY CO.,LTD | THINKCAR INC |
Customer experience
ANCEL
ThinkDiag+
Bugs and requests
ANCEL
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
ANCEL
No in-app purchases
ThinkDiag+
No in-app purchases









