iCar vs ThinkDiag+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iCar
This app uses GPS tracking to monitor vehicle locations in real-time, offering historical data and security alerts. It allows users to manage multiple vehicles, set up geo-fences, and receive notifications for emergencies and status changes.
- Real-time GPS tracking
- Vehicle history data (up to 7 days)
- Multi-vehicle management
- Geo-fencing alerts
- Push notifications for alerts
- Vehicle status monitoring
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The free iCar app helps you reduce risk, improve safety and security, optimize fleet operations by using our latest GPS tracking technology. App Features: Easy to use - Login with your google account then simply input or scan your tracker's ID Real time location updates - Know the location of vehicles History data - Review up to 7 days of past history Multiple viewing - Set and tracking multiple vehicles on one app Sharing - Share real time location to the anyone you want Geo-fence - Receive alerts as soon as your vehicle leaves the proximity Burglar proof - Keep safe when parking Push notification - emergency and security alerts Status - Current status of vehicle like move, stop etc. Accuracy - Latest GPS+GLONASS technology
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 iCar's 25%. ThinkDiag+ also leads on update cadence (every 3 weeks vs every 2 months). iCar's advantage is monetization model (free vs free with in-app purchases). 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.
iCar ships an update every 2 months, ThinkDiag+ every 3 weeks. The most recent releases landed on June 1, 2026 and September 25, 2026 respectively.
| Parameter | iCar | ThinkDiag+ |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (4.3K ratings) — better |
| Positive reviews | 25.0% of reviews | 73.6% of reviews — better |
| Number of ratings | — | 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 | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 32 MB | 539 MB |
| Age rating | 4+ | 17+ |
| Developer | TRACEEZ TECHNOLOGY INTERNATIONAL CO., LTD. | THINKCAR INC |
Customer experience
iCar
ThinkDiag+
Bugs and requests
iCar
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
iCar
No in-app purchases
ThinkDiag+
No in-app purchases
