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Carly — OBD2 car scanner

Carly — OBD2 car scanner

Diagnose, Code and Service

9.9K ratings
603 reviews
🔧 Utilities
📊 Productivity
Free
In-App Purchases

Details

Released
October 7, 2011
Updated
November 3, 2026

Features

Developer

Carly Solutions GmbH Co KG
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Carly — OBD2 car scanner screenshot #1 for iPhone
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Carly — OBD2 car scanner screenshot #5 for iPhone
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Carly — OBD2 car scanner screenshot #7 for iPhone
Carly — OBD2 car scanner screenshot #8 for iPhone
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About

This app allows car owners to diagnose issues, monitor live engine data, and perform maintenance tasks. It offers advanced features like coding hidden car functions and detecting mileage manipulation, helping users save on repairs and understand their vehicle's health.

✓Read and clear fault codes from all ECUs
✓Monitor engine live data parameters
✓Step-by-step car repair guides
✓Perform car maintenance and reset service intervals
✓Check starter battery condition
✓Code and unlock hidden car features
✓Detect mileage manipulation
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What users say about Carly

Reviews of Carly are mixed: the Productivity app is rated 4.6/5 from 9.9K App Store ratings. What users like most: great customer service, lots of functionality. Top complaints: expensive subscription model, connectivity and compatibility issues. Summarized from real user reviews.

Positive things

  • 👍Great customer service
  • 🚀Lots of functionality
  • 💡Useful diagnostic and coding features
  • 🔒Secure and reliable

Negative things

  • 💰Expensive subscription model
  • 🐛Connectivity and compatibility issues
  • 🔍Limited functionality for some vehicles
  • 📚Confusing or lacking documentation
See all reviews
+1

What's New in Carly

41.26.110314

November 3, 2026

- All Carly brands in ONE app - New app dashboard design & easier access to features, please check it out! - Improved diagnostics for VW, Audi, Seat and Skoda models between 2015 and 2022 - Extended repair & maintenance guides for all available vehicles in Carly starting 2007

More
17

Subscriptions & In-App Purchases

Carly for BMW Full-Version

Unlocks All Functions

$59.991 Year
How to cancel Carly subscription ⁉️

User reviews

Most RecentHighest RatedLowest Rated

Run away

Bought this device over a year ago August 23, 2025 and it has never worked up until today October 31, 2026. I reached out to support and still nothing. Don’t waste your money. Not to mention you can’t do anything without a subscription.
LJLeroy Munroe Jr

Only yearly

I have my scanner it got expired i want to use it for one time only it ask me to pay for the whole year
PPeshangKurd

2014 challenger

エンジンチェックランプの内容を見ようと接続したもののECUが見つかりませんというエラーが出て診断できませんでした。　先月は問題なく診断できたのに　今日はなぜ？
ニニー癌

Response from developer

We’re sorry that you had a frustrating experience.You can reach our support here: https://support.mycarly.com/hc/en-us/requests/new?ticket_form_id=360000444960, Include "To Support Manager" in the title, so we can prioritize it. We're confident we can find a solution together.

Simplification

So easy to use,just plug in,turn on your ignition and find out just how you car is running.Simple instructions,great features and reasonably priced. Save money on large mechanics bills with simple guides to putting your car back on track.
SScottiegar

Silent £107 auto-renewal, no warning, no refund

Be warned before you buy Carly. My annual licence auto-renewed for £107 without a single reminder email beforehand. I contacted support the same day the charge appeared, said I didn’t want the renewal and hadn’t used it, and asked for a refund. They refused, saying I should have cancelled at least a month before the renewal date, a deadline buried in the T&Cs that they never reminded me of.

No reminder, a one-month cancellation window on an annual renewal, and a flat refusal to refund an unused licence. That isn’t how a company that respects its customers behaves. If you do buy, set a calendar reminder at least five weeks before the renewal date and cancel straight away. Better still, choose a diagnostics app that doesn’t rely on customers forgetting.
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Rrobbotag

Response from developer

Thanks for your feedback about our policy. The pricing model is presented at checkout, where customers actively agree to the terms. Besides this, T&C specify how cancellations should ideally be made one month before renewal to avoid unwanted charges. However, we understand that plans can change, and we offer flexibility; you can often process cancellations shortly before renewal. It is never our intention to make a surprise out of this situation, and we are sorry you got this impression.

See 598 more reviews

Developer apps

ThermoCall App
ThermoCall App

by Carly Solutions GmbH Co KG

📊 Productivity

(1)

Free
TNM OBCD - powered by Carly
TNM OBCD - powered by Carly

by Carly Solutions GmbH Co KG

🔧 Utilities
Free
Carly Enterprise
Carly Enterprise

by Carly Solutions GmbH Co KG

🔧 Utilities

(1)

Free
QualiT Check
QualiT Check

by Carly Solutions GmbH Co KG

🔧 Utilities
Free
See developer apps

User experience

🐞

Reported Bugs

3 issues

App crashes or freezes

Bug

Adapter not working as expected

Bug

Inaccurate or misleading diagnostic information

Bug
✨

Requested Features

4 requests

More vehicle support

Feature

Improved user interface

Feature

Offline functionality

Feature

Easier subscription management

Feature

FAQ

What does the Carly app do?

The Carly app, when used with the Carly Universal Scanner, allows you to diagnose your car's issues by reading and clearing fault codes from various electronic control units (ECUs). It also provides live engine data, guides for car repair and maintenance, and the ability to code hidden features.

What are the key features of the Carly app?

Key features include comprehensive diagnostics, monitoring of engine live data, step-by-step repair guides, maintenance functions like service resets, battery health checks, coding hidden features, and mileage manipulation detection. Basic features like OBD diagnostics and emission checks are available for free.

How much does the Carly app cost?

The app offers basic features for free, including OBD diagnostics, live data, and emission checks. Advanced features require a yearly subscription, which can be purchased for an individual car brand or all car brands. The Carly Universal Scanner is a separate hardware purchase.

What cars are compatible with Carly?

The app and scanner work with Audi, BMW, Ford, Lexus, Mercedes, Mini, Opel, Porsche, Renault, Seat, Skoda, Toyota, VW, and almost all other car brands with an OBD2 port. However, the specific features available can vary depending on the car model, build year, hardware, and software.

How can Carly help me save money on car repairs?

Carly can help you save money by enabling you to diagnose problems yourself, understand the severity of issues, and perform many maintenance tasks independently, reducing the need for workshop visits. The repair guides also empower you to fix issues yourself.