TopScan

In-app purchases
3.8
905 reviews
100K+
Downloads
Content rating
PEGI 3
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About this app

Connect the Topscan to your Phone via Bluetooth and turn your devices into a smart and powerful diagnostic tool! The Bluetooth OBDII scan tool is loaded with essential features such as full OBDII functionality, full system diagnosis, Bi-Directional controls, AutoVIN, automatic diagnostic reports, and more. Eight maintenance service functions and coverage for 40+ vehicle brands make the Topscan a versatile and portable auto scanner for technicians.

Key Features:
1. Full System Diagnosis: Engine, Transmission, Airbag, ABS, ESP, TPMS, Immobilizer, Gateway, Steering, Radio, Air Conditioning and more.
2. All-system diagnostic basic functions: access ECU info, read fault codes, clear fault codes, read data stream.
3. 8 special functions: Oil Reset, Throttle Adaptation, EPB Reset, BMS Reset, and more.
4. Bi-directional control to target problems easily.
4. AutoVIN for automatic vehicle identification and quick diagnosis.
5. Wireless Connection, Bluetooth 5.0 with a range of 33 feet/10m. Works on Android 7.0/iOS 10.0 or above, compact and portable.
6. Repair Data Library: DTC Repair Guide, Technical Service Bulletin, DLC Location, Warning Light Library.
7. Graph, value and dashboard-like data display for easy interpretation. 
8. Generate Diagnostic reports for System, Fault Codes, or Data Streams.
9. Feedback function enables users to submit issues and requests to us in a convenient way.
Updated on
Oct 31, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Photos and videos and 3 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

3.7
782 reviews
Gareth Bartlett
April 23, 2025
Hit and miss. Connects occasionally. Recently been trying to connect to diagnose a fault and it just fails. I know there is a fault, there is a light on. Never automatically finds the car's VIN, always have to go in manually. Could be so much better and why at each stage does it say establishing communication when it's already communicating.
11 people found this review helpful
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TopDon HK
April 24, 2025
We sincerely apologize for the inconvenience and fully understand your frustration. Please provide the device SN and vehicle VIN to [email protected], and our after-sales team will prioritize resolving your issue. Your feedback is invaluable to us, and we are committed to delivering better service.
Jason Brewster
June 1, 2023
I have been using this software along with the topscan vci for several months now, and can honestly say it's becoming better and better. The software is easy to use, and seems to be fairly accurate. The customer support is 100%. I would recommend this to the car DIY mechanic and mobile mechanic, also for a quick, not too in depth workshop diagnosis. 5 stars.
10 people found this review helpful
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TopDon HK
April 18, 2025
Thank you for your good review! We're happy that our products have been helpful to you. If you ever have suggestions or need assistance, don't hesitate to reach out at [email protected].
Paul Harris
June 3, 2024
Very capable scanner, but infuriating slow scanning. Every time I scan my vehicle, first it has to discover the fitted ECUs, which takes approx 5 mins. Then, when I command the actual DTC scan, it doesn't only scan the discovered ECUs, but also tries the ECUs it knows aren't fitted, prolonging the scan whilst they timeout. Very inefficient! Would be useful to be able to save a vehicle's profile to avoid the rescanning of available ECUs each time.
16 people found this review helpful
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TopDon HK
April 18, 2025
We sincerely apologize for the inconvenience and fully understand your frustration. To quickly access your diagnostic history, please navigate to Full Vehicle Diagnosis > Common > Diagnostic History, where you'll find records of previously diagnosed vehicles.

What’s new

Bug fixes and performance improvements.