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Last updated: June 15, 2026

This Privacy Notice for Vasilii Matveev (“we,” “us,” or “our”) describes how and why we might access, collect, store, use, and/or share (“process”) your personal information when you use our services (“Services”), including when you:

Questions or concerns? Reading this Privacy Notice will help you understand your privacy rights and choices. We are responsible for making decisions about how your personal information is processed. If you do not agree with our policies and practices, please do not use our Services. If you still have any questions or concerns, please contact us at krznenimacor@gmail.com.


Summary of Key Points

This summary provides key points from our Privacy Notice, but you can find out more details about any of these topics by using the table of contents below to find the section you are looking for.

Want to learn more about what we do with any information we collect? Review the full Privacy Notice below.


Table of Contents

  1. What Information Do We Collect?
  2. How Do We Process Your Information?
  3. When and With Whom Do We Share Your Personal Information?
  4. How Long Do We Keep Your Information?
  5. How Do We Keep Your Information Safe?
  6. Do We Collect Information From Minors?
  7. What Are Your Privacy Rights?
  8. Controls for Do-Not-Track Features
  9. Do We Make Updates to This Notice?
  10. How Can You Contact Us About This Notice?
  11. How Can You Review, Update, or Delete the Data We Collect From You?

1. What Information Do We Collect?

Personal information you disclose to us

In Short: We collect very little personal information, and only what you choose to provide.

The app does not require you to create an account, and we do not ask for your name, email address, or other contact details in order to use it. We only receive personal information that you voluntarily provide — for example, if you contact us directly by email.

Information stored on your device

In Short: Your learning progress is stored locally on your device and is not transmitted to us.

The app saves your learning progress (such as completed lessons) locally on your device using the operating system’s standard storage. This information stays on your device, is not sent to our servers, and is removed when you delete the app.

All personal information that you provide to us must be true, complete, and accurate, and you must notify us of any changes to such personal information.


2. How Do We Process Your Information?

In Short: We process the limited information described above only to operate the app and respond to you.

We process information for the following purposes:


3. When and With Whom Do We Share Your Personal Information?

In Short: We do not sell your personal information. We may share information only in the limited situation described below.

We may need to share your personal information in the following situation:


4. How Long Do We Keep Your Information?

In Short: We keep your information for as long as necessary to fulfill the purposes outlined in this Privacy Notice unless otherwise required by law.

We will only keep your personal information for as long as it is necessary for the purposes set out in this Privacy Notice, unless a longer retention period is required or permitted by law (such as tax, accounting, or other legal requirements).

When we have no ongoing legitimate business need to process your personal information, we will either delete or anonymize such information, or, if this is not possible (for example, because your personal information has been stored in backup archives), then we will securely store your personal information and isolate it from any further processing until deletion is possible.

Your learning progress is stored locally on your device, not on our servers, and remains there until you delete it or remove the app.


5. How Do We Keep Your Information Safe?

In Short: We aim to protect your personal information through a system of organizational and technical security measures.

We have implemented appropriate and reasonable technical and organizational security measures designed to protect the security of any personal information we process. However, despite our safeguards and efforts to secure your information, no electronic transmission over the Internet or information storage technology can be guaranteed to be 100% secure, so we cannot promise or guarantee that hackers, cybercriminals, or other unauthorized third parties will not be able to defeat our security and improperly collect, access, steal, or modify your information. Although we will do our best to protect your personal information, transmission of personal information to and from our Services is at your own risk. You should only access the Services within a secure environment.


6. Do We Collect Information From Minors?

In Short: The app is rated 4+ and suitable for all ages. We do not knowingly collect personal information from children.

The app is intended to be appropriate for users of all ages, including children, and carries a 4+ age rating on the App Store. Because the app does not require an account and does not collect personal information from any user, we do not knowingly collect personal information from children. If you believe we have somehow received personal information from a child, please contact us at krznenimacor@gmail.com and we will take reasonable steps to delete it.


7. What Are Your Privacy Rights?

In Short: Depending on where you live, you may have rights regarding your personal information under applicable privacy laws.

Depending on your location, you may have the right to request access to, correction of, or deletion of any personal information we hold about you. Because the app works without an account and stores your progress locally on your device, you can also remove all locally stored data at any time by deleting the app. To make a privacy request, email us at krznenimacor@gmail.com.

Withdrawing your consent: If we are relying on your consent to process your personal information, which may be express and/or implied consent depending on the applicable law, you have the right to withdraw your consent at any time. You can do so by contacting us using the contact details provided in the section “How Can You Contact Us About This Notice?” below.

However, please note that this will not affect the lawfulness of the processing before its withdrawal nor, when applicable law allows, will it affect the processing of your personal information conducted in reliance on lawful processing grounds other than consent.

If you have questions or comments about your privacy rights, you may email us at krznenimacor@gmail.com.


8. Controls for Do-Not-Track Features

Most web browsers and some mobile operating systems and mobile applications include a Do-Not-Track (“DNT”) feature or setting you can activate to signal your privacy preference not to have data about your online browsing activities monitored and collected. At this stage, no uniform technology standard for recognizing and implementing DNT signals has been finalized. As such, we do not currently respond to DNT browser signals or any other mechanism that automatically communicates your choice not to be tracked online. If a standard for online tracking is adopted that we must follow in the future, we will inform you about that practice in a revised version of this Privacy Notice.


9. Do We Make Updates to This Notice?

In Short: Yes, we will update this notice as necessary to stay compliant with relevant laws.

We may update this Privacy Notice from time to time. The updated version will be indicated by an updated “Revised” date at the top of this Privacy Notice. If we make material changes to this Privacy Notice, we may notify you either by prominently posting a notice of such changes or by directly sending you a notification. We encourage you to review this Privacy Notice frequently to be informed of how we are protecting your information.


10. How Can You Contact Us About This Notice?

If you have questions or comments about this notice, you may email us at krznenimacor@gmail.com.


11. How Can You Review, Update, or Delete the Data We Collect From You?

You have the right to request access to the personal information we hold about you, details about how we have processed it, to correct inaccuracies, or to delete your personal information. You may also have the right to withdraw your consent to our processing of your personal information. These rights may be limited in some circumstances by applicable law.

To make such a request, email us at krznenimacor@gmail.com. In addition, you can delete all data stored locally by the app at any time by removing the app from your device.