This Privacy Policy describes our policies and procedures regarding the collection, use, and disclosure of Your information when You use the Service and tells You about Your privacy rights and how the law protects You.

We use Your Personal Data to provide and improve the Service. By using the Service, You agree to the collection and use of information in accordance with this Privacy Policy.

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Interpretation and Definitions

Interpretation

The words of which the initial letter is capitalized have meanings defined under the following conditions. The following definitions shall have the same meaning regardless of whether they appear in singular or in plural.

Definitions

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Collecting and Using Your Personal Data

Types of Data Collected

Personal Data

While using Our Service, We may ask You to provide Us with certain personally identifiable information that can be used to contact or identify You. Personally identifiable information may include, but is not limited to:

• Username (any name of Your choice)
• Usage Data

Usage Data

Usage Data is collected automatically when using the Service.

Usage Data may include information such as Your Device's Internet Protocol address, browser type, browser version, the pages of our Service that You visit, the time and date of Your visit, the time spent on those pages, unique device identifiers and other diagnostic data.

Information Collected while Using the Application

While using Our Application, in order to provide features of Our Application, We may collect the following information:

• Learning progress: test results, answer statistics, topic learning progress
• Unique identifier: randomly generated ID for identifying Your account (stored locally on device)
• Application settings: Your personal learning settings

Data Transmitted to Google through Firebase

We collect data using Google tools and transmit it to Google data processing centers in accordance with Google's Privacy Policy:

Firebase Analytics:

• Automatic events: first app launch, app deletion, app update
• Custom events: interaction with app features
• Device technical data: operating system, device model, app version
• Session data: number of sessions, their duration
• Approximate location: country and region based on IP address
• Demographic data: age and gender (if provided by user in Google account)
• Interface language: device and app language

Firebase Crashlytics:

• Crash information: technical details of errors and app crashes
• Crash conditions: context of app usage at the time of crash

Firebase Performance:

• Request speed: server response time to requests

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Use of Your Personal Data

The Developer may use Personal Data for the following purposes:

• To provide and maintain our Service, including to monitor the usage of our Service.
• To manage Your Account: to manage Your registration as a user of the Service.
• Learning personalization: adapting the "3 correct answers" system to Your mistakes.
• Service improvement: usage analysis to improve the application.
• Technical support: fixing errors and improving stability.
• Performance optimization: improving server and application speed.

We may share Your personal information in the following situations:

• With Service Providers: We may share Your personal information with Service Providers to monitor and analyze the use of our Service.
• With Your consent: We may disclose Your personal information for any other purpose with Your consent.

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Retention of Your Personal Data

The Developer will retain Your Personal Data only for as long as is necessary for the purposes set out in this Privacy Policy.

The Developer will also retain Usage Data for internal analysis purposes. Usage Data is generally retained for a shorter period of time, except when this data is used to strengthen the security or to improve the functionality of Our Service.

Retention periods:

• Learning progress: stored while You use the application
• Technical data: 24 months from last usage
• Upon account deletion: all data is automatically deleted within 30 days
• Backup copies: stored for up to 30 days after deletion
• Firebase data: deleted according to Google's policy (up to 180 days)

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Transfer of Your Personal Data

Your information, including Personal Data, is processed at the Developer's operating offices and in any other places where the parties involved in the processing are located. It means that this information may be transferred to — and maintained on — computers located outside of Your state, province, country or other governmental jurisdiction where the data protection laws may differ than those from Your jurisdiction.

Data storage locations:

• Main data: Render servers (Frankfurt, Germany)
• Firebase data: Google data processing centers
• Local data: temporarily on Your device

Your consent to this Privacy Policy followed by Your submission of such information represents Your agreement to that transfer.

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Delete Your Personal Data

You have the right to delete or request that We assist in deleting the Personal Data that We have collected about You.

Our Service may give You the ability to delete certain information about You from within the Service through the account deletion feature in the app (Profile → "Delete Account").

You may also contact Us to request access to, correct, or delete any personal information that You have provided to Us.

Detailed information about account deletion can be found at the link: Account Deletion Instructions

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Your Rights Regarding Personal Data

You have the following rights:

• Right to access: obtain a copy of Your personal data that we process
• Right to rectification: correct inaccurate or incomplete personal data
• Right to erasure: delete Your personal data ("right to be forgotten")

Please note, however, that We may need to retain certain information when we have a legal obligation or lawful basis to do so.

Data we can provide upon request:

• Username
• Learning progress and test results
• Error statistics
• Technical information (registration date, last login)

Important: Firebase Analytics, Crashlytics and Performance data is located directly with Google. To obtain this data You need to contact Google according to their Privacy Policy.

Request processing time: up to 30 calendar days from request receipt.

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Security of Your Personal Data

The security of Your Personal Data is important to Us, but remember that no method of transmission over the Internet, or method of electronic storage is 100% secure. While We strive to use commercially acceptable means to protect Your Personal Data, We cannot guarantee its absolute security.

Security measures we use:

• SSL/TLS encryption for data transmission
• Secured servers with restricted access
• Regular data backups
• Minimization of personal data collection
• Regular security updates

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Children's Privacy

Our Service is suitable for users aged 3 years and older. We recommend parental involvement for children under 13 years.

We do not knowingly collect personally identifiable information from children under 13 without parental consent. If You are a parent or guardian and You are aware that Your child has provided Us with Personal Data, please contact Us.

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Links to Other Websites

Our Service may contain links to other websites that are not operated by Us. If You click on a third party link, You will be directed to that third party's site. We strongly advise You to review the Privacy Policy of every site You visit.

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Changes to this Privacy Policy

We may update Our Privacy Policy from time to time. We will notify You of any changes by posting the new Privacy Policy on this page.

We will let You know via in-app notification prior to the change becoming effective and update the "Last updated" date at the top of this Privacy Policy.

You are advised to review this Privacy Policy periodically for any changes. Changes to this Privacy Policy are effective when they are posted on this page.

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Contact Us

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© 2025 Oblanov Oleksandr. All rights reserved.

This Privacy Policy has been created to ensure transparency and protection of Your rights. We value Your trust and are committed to protecting Your privacy.