TopScan

In-app purchases
3.7
793 reviews
100K+
Downloads
Content rating
Everyone
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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
Jul 16, 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
690 reviews
Robert T
June 12, 2025
Annual Subscription fee. App has the features you want but the user interface was confusing. App forced me to log out, can't save a set of favorite live data streams - have to go select from 200+ each time. In Live data stream playback you have no controls (forward, reverse, jump ahead), you must play back the entire file just to get where you want. Could not find live data monitoring function for my Toyota or Honda; maybe it was buried in the menus.
7 people found this review helpful
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Topdon
June 11, 2025
We sincerely apologize for the inconvenience and fully understand your frustration. Please record a video of the issue and send it to support@topdon.com – our after-sales team will prioritize resolving your case. Your feedback is invaluable as we strive to improve our services.
Tami K
April 20, 2025
It cleared my secure DTCs which saved me $$ and time towing car to dealer and paying them to clear them. However, it wasn't completely intuitive how to navigate within the app to figure out how to clear the codes. Once found, it was seconds to fix. But it took me over an hour to figure out where the setting was within the app.
3 people found this review helpful
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Topdon
April 23, 2025
Thank you sincerely for choosing Topscan and sharing your detailed experience! We genuinely apologize for the navigation challenges you encountered—we fully understand how frustrating time-consuming feature searches can be. Your feedback is invaluable, and we’re taking immediate action with:HD tutorial videos.
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.
6 people found this review helpful
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Topdon
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.

What’s new

1. Fix known Bugs