EasyDiag4 vs ThinkCar pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EasyDiag4
This application connects to your vehicle via Bluetooth to perform comprehensive fault diagnosis across various systems. It supports reading and clearing diagnostic trouble codes, viewing data streams, and resetting service lamps, catering to the needs of the vehicle maintenance market.
- Bluetooth vehicle data interaction
- One-click intelligent diagnosis
- Full system fault diagnosis
- Read DTCs
- Read Data Streams
- Clear DTCs
- Reset Service Lamp
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EasyDiag4 vehicle diagnostic application is a vehicle fault diagnosis tool software developed based on the mobile intelligent terminal platform. It is suitable for the vehicle maintenance market. It uses a dedicated connector to perform data Bluetooth interaction with the vehicle and supports one-click intelligent diagnosis. It can realize fault diagnosis for full systems such as power system and safety system, involving Read DTCs, Read Data Streams, Clear DTCs, and Reset Service Lamp. The software contains EOBD, maintenance and special function software, mainstream model diagnostic software, etc. It can meet the actual needs of most users for testing vehicles.
ThinkCar pro
This app provides professional-level vehicle diagnostics, including reading and clearing fault codes, accessing data streams, and performing special functions. It supports a wide range of car manufacturers and offers features like automatic VIN reading and report generation. Connect with other users in the community for support.
- OE-level professional functions
- Full OBD II diagnosis
- Maintenance light reset
- Support for 39+ manufacturers
- Automatic VIN reading
- Fault code interpretation
- Diagnostic report generation
- 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).
Screenshots
Verdict
The clearest difference is review sentiment: ThinkCar pro at 62% against EasyDiag4's 0%. ThinkCar pro also leads on rating (4.6 vs 2.9) and update cadence (every 5 months vs every 18 months). On price, ads, in-app purchases and monetization model 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.
ThinkCar pro holds the better App Store score, 4.6 against 2.9. That said, the two scores are not equally well evidenced: ThinkCar pro has 323 ratings behind it against 19, so its average is the more settled of the two. Written reviews point the same way: 0% of EasyDiag4's written reviews are positive against 62% of ThinkCar pro's.
EasyDiag4 ships an update every 18 months, ThinkCar pro every 5 months. The most recent releases landed on September 20, 2026 and September 23, 2026 respectively.
| Parameter | EasyDiag4 | ThinkCar pro |
|---|---|---|
| Price | Free | Free |
| Rating | 2.9 (19 ratings) | 4.6 (323 ratings) — better |
| Positive reviews | 0.0% of reviews | 61.7% of reviews — better |
| Number of ratings | 19 | 323 — better |
| Update frequency | Every 18 months | Every 5 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 11.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 114 MB | 325 MB |
| Age rating | 17+ | 17+ |
| Developer | Launch Tech Co., Ltd | THINKCAR INC |
Customer experience
EasyDiag4
ThinkCar pro
Bugs and requests
EasyDiag4
Not enough reviews yet to summarise bugs or requests.
ThinkCar pro
Reported bugs
9 issues- App crashes and resets unexpectedly
- TPMS functionality not working
- Password registration issues
- Slow app loading times
- Graphs not rendering in engine parameters
Show 4 moreShow fewer
- OBD2 value reading failures
- Firmware update failures
- ABS bleeding process extremely slow
- App crashes after updates
Requested features
7 requests- PDF export and sharing functionality
- Multiple parameters on single graph
- Data export for external analysis
- Support for LPG/LPI fuel vehicles
- Support for VAZ vehicles
Show 2 moreShow fewer
- Automatic VIN identification
- Improved app stability and performance
In-app purchases
EasyDiag4
No in-app purchases
ThinkCar pro
No in-app purchases
