TopScan

In-app purchases
3.4
876 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
Oct 13, 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

3.4
760 reviews
James Salters
September 21, 2025
price is a bit much. not everything needs to be a long term subscription service for over $100. this was a great product that has been ruined by a paywall some things are kinda hidden but a couple minutes of poking around and you should find everything just fine. Tons of options. Gives you the code and what the code is then it gives you links of how to fix the problem. I'm truly impressed. *home mechanic*
5 people found this review helpful
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Topdon
April 16, 2025
Thank you for your 5-star 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.
Jeff Dunlap
October 18, 2025
When brand new it worked alright. Slow, but is scanned and would handle DTCs on 7 different vehicles I work on. Initial downsides are constantly updating. I don't need 37 monthly updates for vehicles 18+ years old. And I don't need to waste data updating for every make and model from a specific manufacturer. Primary problem is it is now a subscription service. The ol bait & switch. I no longer support any TopDon products because of this. A chatGPT reply in the wrong language makes it even worse
3 people found this review helpful
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Topdon
October 18, 2025
ChatGPT 说: Obrigado pela sua boa avaliação! Ficamos felizes que nossos produtos tenham sido úteis para você. Se você tiver sugestões ou precisar de assistência, não hesite em nos contatar pelo e-mail support@topdon.com .
Look Up
August 29, 2024
Edit- When the app doesn't "time out due to endless loading" or refuse to show every make/model, it is good. Not a bad app or device. It won't auto read any vin I have tried it on, but this device smokes any basic elm 327 device. Definitely worth the cost. I wish I had known it had a companion pro version for $50 more before buying this one, but I don't regret my purchase. Decent bidirectional controls.
9 people found this review helpful
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Topdon
April 11, 2025
We sincerely apologize for the inconvenience you've experienced and completely understand your frustration. Please capture a video of the issue and send it to support@topdon.com - our support team will prioritize resolving this for you. Your feedback is very important to us as we strive to provide better service.

What’s new

1. Bug fixes and performance improvements

App support

About the developer
深圳鼎匠软件科技有限公司
lenkorapp@gmail.com
南山区南山街道兴海大道3040号前海世茂金融中心二期3201 深圳市, 广东省 China 518000
+86 186 6591 4084

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