Carly — OBD2 car scanner

3.6
32.4K reviews
1M+
Downloads
Content rating
Everyone
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About this app

Carly is the most versatile OBD2 solution, offering diagnostics, engine live data, and guides for car repair and maintenance.
It's helped over a million car owners to save up to $2,000 per year for car-related topics.

Get the Carly app and the Carly Universal Scanner to access data through the OBD2 port of your car.

Unleash your inner car hero with Carly!

It works for Audi, BMW, Ford, Lexus, Mercedes, Mini, Opel, Porsche, Renault, Seat, Skoda, Toyota, VW, and almost all other car brands with an OBD2 port.

As every car is unique, which specific Carly features are available will vary with every model, build year, hardware, and software.

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BASIC FEATURES INCLUDED IN THE (FREE) BASIC PACKAGE

Diagnostics (OBD), Live Data (OBD), and Emission Check (OBD) enable you to have control over the most important systems — engine and transmission.

ADVANCED FEATURES INCLUDED IN THE PREMIUM PACKAGE (YEARLY LICENSE)

🔧 UNDERSTAND YOUR CAR'S HEALTH
With Carly Diagnostics, you can read and clear fault codes from all built-in electronic control units (ECUs), including engine, transmission, ABS, airbag, and multimedia, keep track of your car’s health, gauge the severity of problems, and more.

🔧 POWERCHARGE YOUR REPAIR SKILLS
Get expert repair guides for your specific issues to help you understand and fix the issues by yourself.

🔧 MONITOR ENGINE LIVE DATA
Live parameters or live data can help you take the guesswork out of understanding what your car needs and narrow down the fault causes.

🔧 PERFORM CAR MAINTENANCE INDEPENDENT OF THE WORKSHOP
The Carly Maintenance feature helps you step-by-step to service your car yourself, reset your service and keep track of your service intervals directly from your phone.

🔧 VIEW THE CONDITION OF YOUR BATTERY
The Carly Battery Check function helps you monitor the status of your car's starter battery, which will help to increase your batterie lifetime.

🔧 CODE AND UNLOCK HIDDEN FEATURES
Access hidden features set by the manufacturer and customize your car to fit your needs. This feature is only available on certain car brands/models, and the coding options vary between each control unit.

🔧 DETECT MILEAGE MANIPULATION
Mileage manipulation is on the rise. Don’t get tricked when buying a used car — use Carly to perform a used car inspection before buying.

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HOW IT WORKS

Step 1: Check which features are available for your car model
Step 2: Order your Carly Universal Scanner
Step 3: Plug the scanner into the OBD2 port and log in on this app

THE CARLY UNIVERSAL SCANNER — THE MOST ADVANCED OBD DEVICE

The OBD2 device was designed to support almost all car brands with an OBD2 port and to enable advanced Carly features. The scanner comes with:
• A lifetime warranty
• Premium customer support

Take the health of your car into your own hands!

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You can purchase a subscription for an individual car brand or for all car brands.
This is a yearly subscription. The subscription automatically renews for one year if not canceled at least 24 hours prior to the end of the current period. The subscription can be managed in your purchases and the automatic renewal can be deactivated there.

Terms of Use: https://bit.ly/35Mxg5s
Privacy Policy: https://bit.ly/35Rruze
Updated on
Apr 10, 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
Location, Personal info and 2 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

3.6
31.1K reviews
Aaron Trover
March 15, 2026
The scanner worked reasonably well for a time. By the second year I purchased service, my scanner would not read my vehicles properly at all and I was expected to buy another scanner. I chose not to and let the second year run out. Carly stored my credit card info, where in Google play I have no subscriptions at all, and took it upon themselves to charge my card for a third year, stealing from me. Now they hide from returning my money behind Google policy that does not apply to me.
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Carly Solutions GmbH & Co KG
March 16, 2026
We’re sorry to hear about your experience. License purchases and renewals depend on where the license was originally bought (e.g., Google Play or our website) and are managed separately. If something seems unclear, please contact our support team with your account details so they can clarify it for you.
Ben Nalley
March 12, 2026
Doesn't show all the check engine codes, most codes that are shown are generic and don't really help. I think it's expensive for what little help it offers. also the customer service isn't helpful at all. don't waste your money. also id like to add that all the times I've reached out to customer service and got no help with my issues, but I leave a poor review and get a response immediately. that says it all. I'd give you less than 1 star if I could, that's how unsatisfied I am with your product
1 person found this review helpful
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Carly Solutions GmbH & Co KG
March 11, 2026
The depth of fault code information depends on the vehicle, installed control units, and manufacturer data available. Some vehicles provide more detailed manufacturer-specific codes than others. Your feedback is important, and we continuously work on improving both diagnostics depth and support quality.
Erik T
January 16, 2026
The product does not work, there is zero support, it doesn't have basic coding features as advertised. My device stopped reading the ECU (it would only read live data). Once you subscribe there's no easy way to cancel, no notification of renewal and once you're auto-billed you'll hear "too bad, German law allows us to charge you for a full year." Even after I told them my device did not work they still decided the refused to refund my purchase. Stay away.
11 people found this review helpful
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Carly Solutions GmbH & Co KG
January 21, 2026
We’re sorry to see that our model didn’t work out for you. We take these accusations seriously and want to assure you that Carly has been in the market for many years, earning its space fairly. We hold our values strongly, and honesty with our customers is one of the core principles we stand by. Sorry to see you go.

What’s new

- All Carly brands in ONE app