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Data Factsheet

The data we collect within CCleaner, why we collect it, and what it’s used for

CCleaner reports some statistical, non-personal data from the desktop application to improve the quality of the PC cleaning and utility services that we provide to you.

When you use CCleaner it is necessary for some data, such as the operating system you’re on, whether you’re using a free or paid version of CCleaner, and the language you’re using, to be reported. This data allows us to safely maintain CCleaner and make sure that it works well for everyone. But not all data needs to be reported.

Your anonymous usage data doesn’t need to be reported for us to maintain CCleaner, but it does help us to build a better product. It provides us with statistics about what is being used within CCleaner and what isn’t. This data helps us make decisions about how we develop CCleaner so we can build features that you like and give you a better user experience. You can choose whether you’d like CCleaner to report anonymous data in CCleaner’s ‘Privacy’ tab.

Some important notes about your data…

  • CCleaner can only report usage data about itself or its use; it does not report data about interactions with other applications on your computer.
  • The data reported in CCleaner is anonymous, aggregated, statistical data that we use to spot product usage trends. It does not report personal data.
  • Data is collected in accordance with data processing best practices and domestic privacy laws. We do not connect statistical data with any personal data that we may hold for you elsewhere in the company, such as your email address (if, for example, you have subscribed to our marketing emails).
  • Data is securely stored in Microsoft Azure Cloud or the data center of our parent company Avast Antivirus, and is only accessed and processed by us.
  • We do not share any data with third parties but we do analyze some data using Google Analytics (you can read more in our Privacy Policy). When you purchase a product from us, the data entered into CCleaner to buy a product (so entered into the cart within the application) is collected, stored and processed by our payment provider, Cleverbridge.

What CCleaner can report and why...

Data group Data categories reported Why is it reported?
Product Maintenance

Installation event, product edition, product version, license status, country, language, and operating system version information

It provides us with basic system data so we can:

  • Make sure that CCleaner works across different operating systems
  • Understand requirements to update CCleaner with the latest cleaning definitions and features
  • Detect performance, translation issues and bugs in CCleaner, and prioritize their fixes
  • Offer automatic updates and notify users when an update is available (including security updates)

Without this information, we would not be able to maintain CCleaner and it would not be safe or responsible for us to let you use it.

License Details

The license key used to activate and authenticate the license, the type of license

It lets us know your license details so we:

  • Know whether you’re using a free or paid version of CCleaner
  • Can manage paid license terms
  • Can make sure that paying users get the additional product functionality that they’ve paid for
Usage Data

Basic interaction with CCleaner (views, button clicks), performance indicators (e.g. amount of junk cleaned)

It helps us understand how CCleaner is used so we can give you a better user experience by:

  • Improving product features (and developing new ones)
  • Improving interface design
  • Identifying the causes of technical issues so we can fix them
  • Letting us know if we’re doing things right (if you’re cleaning lots, you probably like CCleaner!)
Offer Data

Product edition, product version, if Chrome is installed, antivirus installed, operating system version information, language

It means that in our free product we can deliver offers for Chrome and Avast Antivirus in a relevant, timely and contextual manner. It also means we can make sure an offer is not displayed if:

  • Either product is already installed on your computer
  • You’ve already clicked on the offer but chose not to proceed
  • The offer has recently been displayed
Emergency Update Check

Product edition, product version, operating system version information, language

It means we can detect and deliver an emergency update, should one be required.

Crash Reports

Apps running at the time of crash, operating system version information, CCleaner version/build

It helps us diagnose issues within CCleaner so we can deliver fixes in future versions.

We’ve renamed two CCleaner functions...

The following functions have not changed in functionality, but their new names better describe their purpose:

  1. The heartbeat, which lets us know the product edition, license status and version of the software that you’re using (so we can offer updates) is now called Product Maintenance.
    This is listed in the above table.
  2. The Monitoring feature, which was controlled by the Active Monitoring checkbox and triggers automatic cleaning and alerts, is now called Smart Cleaning.
    This is not listed in the above table because this feature does not report any data to us.
    It can be found in CCleaner’s new ‘Smart Cleaning’ tab.

If you have any questions, please visit our FAQs

Footnote: This Data Factsheet relates to: CCleaner Free, CCleaner Professional. CCleaner Business Edition and CCleaner Technician Edition. We are working towards providing information for our other business products: CCleaner Network Edition and CCleaner Cloud. For information regarding these products, please contact our Support Team.