TopScan

In-app purchases
1.3K 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.
OBDII Diagnostic Scan Tool & Code Reader(Cannot support 32-bit cell phones)
Updated on
Sep 4, 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

1.13K 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.
17 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.
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.
6 people found this review helpful
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TopDon
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
Andre Sanford
April 26, 2026
Recommend by fellow mechanics, after using it, I wonder why? It's only another gimmick to milk your wallet. Not for the DIY mechanics where you can't recover the constant "pay in" just another gimmick that will get tossed out. Better option buy a scan tool, most have the cost to update, but TopScam is predatory. By the time I need it in my DIY situation it needs multiple updates taking a very long time. Then you realize your subscription is over, time to pay up. Buy a Harbor Freight tool
13 people found this review helpful
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TopDon
April 27, 2026
Hi there, we completely understand your frustration.Topscan can be subscribed for free for one year from the date of activation. If you purchase the TopScan Lite, you can choose monthly, quarterly renewal, depending on what makes the most sense for you. If you have other questions, please contact us at support@topdon.com.

What’s new

1.Added a preview feature for images uploaded with diagnostic reports..