TopScan

In-app purchases
3.8
879 reviews
100K+
Downloads
Content rating
USK: All ages
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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 14, 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
762 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.
10 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.
G g
October 11, 2024
It used to work great and was extremely useful for use on my car. I hadn't used for a while and needed to use it today. Spent a bunch of time updating and then scanning over and over again. The app would either force close or it would lose connection to the device and not give me a report.
14 people found this review helpful
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Topdon
April 11, 2025
We sincerely apologize for the inconvenience. If you're still experiencing this issue after upgrading to the latest version, please contact support@topdon.com—our support team will prioritize your case. Your feedback is invaluable to us, and we appreciate your patience and understanding.
Ben The Mechanic
October 25, 2025
used for a year and now the price is jacked up to 100. it was advertised much less. they paywall it and make all makes and models unusable. it's not an update makes and model paywall. you can't use it anymore. the year I used it it worked great. was a bit slow. the connector pins like to bend with regular use. I bought the gearwrench one for not much more then a year update. the gearwrench one has no update fees.
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What’s new

1. Bug fixes and performance improvements