TopScan

3.6
1.21K reviews
Content rating
Rated for 3+
100K+
Downloads
Content rating
Rated for 3+
Learn more
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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
Jun 3, 2026

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

3.5
1.05K 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.
14 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 support@topdon.com, and our after-sales team will prioritize resolving your issue. Your feedback is invaluable to us, and we are committed to delivering better service.
Sean Schroeder
June 24, 2026
I've had my topscan for 3 years and have loved it from the first time using it. it's extremely helpful for diag and getting to the root problem. it's the only OBD scanner I'll ever need. After the first year subscription though I found it to be very pricey and wished it didn't cost so much for a subscription. other than that it's an amazing tool I can't live without. thank you.
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TopDon HK
June 25, 2026
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 support@topdon.com.
Mark Aukett
June 4, 2026
I've been using this for over a while now, and while it isn't a bad scanner, it's not great either. There are other apps that work better, have a more intuitive interface and cost a lot less for the annual sub. I'd give the app 3 stars, but loses one for value. Scanning is functional but very, very slow, basic diagnostics are sound, but service features are hit-and-miss, and it CONSTANTLY requires me to relog-in even during the sun period and keeps forcing module reloads all the time.
2 people found this review helpful
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TopDon HK
June 4, 2026
We sincerely apologize for the inconvenience and fully understand your frustration. Could you please send us your device serial number (SN) and record a video to us via support@topdon.com. We will prioritize resolving your issue.Your feedback is invaluable to us as we strive to provide better service

What’s new

1.Added data stream sorting.
2.Improved TopFix functionality.