Privacy policy

Last updated on May 29, 2024

This privacy policy outlines how Useful Collective s.r.o. (“we”, “us”, or “our”) collects, uses, and processes any personal data that we receive from you, or you provide to us, in connection with your use of our website (the Site). By accessing or using our Site, you agree with the terms set out in this Privacy Policy.

If you are a registered Site user or a visitor to our website, we act as the “data controller” of personal data. This means we determine how and why your data are processed.

Information We Collect

When you visit the Site, we automatically collect certain information about your device, including information about your web browser, IP address, time zone, and some of the cookies that are installed on your device. Additionally, as you use the Site, we collect information about the individual web pages or products that you view, what websites or search terms referred you to the Site, and information about how you interact with the Site. We refer to this automatically-collected information as “Device Information.”

We collect Device Information including, but not limited to, the following technologies:

  • Cookies are data files that are placed on your device or computer and often include an anonymous unique identifier. For more information about cookies, and how to disable cookies, visit .
  • Log files track actions occurring on the Site, and collect data including your IP address, browser type, Internet service provider, referring/exit pages, and date/time stamps.

Additionally, when you create an account on the Site or submit a prompt, we collect your name, email address, and any data that identifies you, along with the content of the prompts you submit. We refer to this information as “User Information.”

When we talk about “Personal Information” in this Privacy Policy, we are talking about Device Information and User Information collectively.

How We Use Your Information

We use the personal information we collect for the following purposes:

  • Communicate with you;
  • Screen submissions for potential risk or fraud;
  • Process and optimize prompts;
  • Improve and optimize our Site;
  • When in line with the preferences you have shared with us, provide you with information or advertising relating to our products or services.

Data Retention

We retain your personal data for as long as necessary to fulfill the purposes for which it was collected, including for the purposes of satisfying any legal, accounting, or reporting requirements. The retention period for each category of data is as follows:

  • Device Information: 2 years
  • User Information: 10 years

Do Not Track Signals

We do not alter our site’s data collection and use practices when we see a Do Not Track signal from your browser.


If you have any concerns about our data protection practices, you have the right to file a complaint with the Czech data protection authority, the Office for Personal Data Protection, at .


We may update this privacy policy from time to time in order to reflect, for example, changes to our practices or for other operational, legal, or regulatory reasons.

Contact Us

You have the right to access, rectify, erase, restrict processing, object to processing, and request data portability of your personal data. To exercise any of these rights, or for more information about our privacy practices, if you have questions, or if you would like to make a complaint, please contact us by email .