Last updated: March 2026

Welcome to OneBallr - Football Quiz Match!

OneBallr - Football Quiz Match is owned and operated by Ghalayini, Khajinskii & Pronichev GbR.

OneBallr values your privacy and the protection of your personal data. This privacy policy describes what information we collect from you, how we collect it, how we use it, how we obtain your consent, how long we keep it in our databases and, if necessary, with whom we share it.

By using the platform, you agree to the practices described in this privacy policy. Use of the platform is also subject to our terms and conditions. In this privacy policy, the words “platform” and “application” refers to the OneBallr mobile application and the OneBallr website together, "we", "us", "our", “the company” and "OneBallr", refers to OneBallr - Football Quiz Match, and "you", and "user", refers to you, the user of OneBallr.

This privacy policy may change from time to time. Your continued use of the platform after we make changes is deemed to be acceptance of those changes, so please check the policy periodically for updates. This privacy policy has been developed and is maintained in accordance with all applicable national and international privacy and data protection laws and regulations.

1. Generel Information

The personal data of the users that are collected and processed through the platform:

• OneBallr mobile application (Available on App Store).

Will be under responsibility and in charge of:

• OneBallr - Football Quiz Match.
• E-mail: oneballrapp@gmx.de

2. How We Obtain Your Consent

By registering, accessing, or using the OneBallr application, the user confirms that they have read and understood this Privacy Policy and provides their free, specific, informed, and unambiguous consent to the processing of their personal data as described herein. Such consent is expressed through a clear affirmative action, including but not limited to creating an account, using the functionalities of the application, or accepting the relevant terms within the app interface.

In particular, the user expressly consents to the processing of their personal data for the following purposes:

• The creation, management, and maintenance of the user account, including authentication through email address, password, and username (nickname).
• The storage and management of profile-related information, including avatar configurations, purchased cosmetic items, and profile personalization.
• The provision of the core functionalities of the application, including participation in football quiz games, tracking of progress, scores, performance, and in-game statistics.
• The enablement of social features, including searching for other users, sending and receiving friend requests, managing friend lists, and interacting within the platform.
• The sending of push notifications related to the operation of the application, including reminders, friend activity, in-game events, and relevant communications, through providers such as OneSignal.
• The collection and analysis of usage data in aggregated or pseudonymized form through tools such as Firebase Analytics, for the purpose of improving the performance, functionality, and user experience of the application.
• The detection, monitoring, and resolution of technical errors, crashes, and performance issues through tools such as Sentry.
• The display of advertising within the application through third-party services such as Google AdMob, including the potential use of advertising identifiers for ad personalization, where permitted by the user’s device settings or consent in accordance with applicable laws.
• The management of in-app purchases, including the acquisition of digital content and premium subscriptions through the Apple App Store in-app purchase system.
• The protection of the application’s security, prevention of fraud, abuse, or misuse of the platform, and compliance with applicable legal obligations.

The processing of personal data described above is based, where applicable, on the user’s consent pursuant to Article 6(1)(a) of the General Data Protection Regulation (EU) 2016/679 (“GDPR”), as well as on the necessity for the performance of a contract to which the user is a party pursuant to Article 6(1)(b) GDPR, particularly in relation to the provision of the services offered through the application. Where relevant, processing may also be based on the legitimate interests of the data controller pursuant to Article 6(1)(f) GDPR, provided that such interests do not override the fundamental rights and freedoms of the user.

In accordance with applicable German data protection laws, including the Bundesdatenschutzgesetz (BDSG) and the Telekommunikation-Telemedien-Datenschutz-Gesetz (TTDSG), as well as the European ePrivacy framework, the use of technologies such as advertising identifiers, storage on, or access to the user’s device may require prior user consent where applicable.

Given that the application is available worldwide, personal data processing is also carried out in consideration of internationally recognized data protection standards and, where applicable, regulations such as the California Consumer Privacy Act (CCPA/CPRA) in the United States, the Personal Information Protection and Electronic Documents Act (PIPEDA) in Canada, and other applicable local privacy laws, ensuring an appropriate level of protection for personal data.

The user may withdraw their consent at any time, without affecting the lawfulness of processing based on consent before its withdrawal, by using the options available within the application or by contacting the data controller as indicated in this Privacy Policy.

3. Types of Data Collected

The personal data processed through the OneBallr application is provided directly by the user when performing actions such as registering an account, using the application’s functionalities, interacting with other users, customizing their profile, participating in gameplay, or otherwise engaging with the services offered within the app. Additional data may be collected automatically through the user’s interaction with the application and through integrated third-party services.

The types of data collected may include, but are not limited to, the following:

3.1. Account Registration and Authentication Data

When creating and accessing an account, users provide certain identifying information necessary to establish and secure their account. This may include the user’s email address, username (nickname), and password (stored in a secure, hashed format). Additional authentication-related data, such as login timestamps or session identifiers, may also be processed to ensure account security and integrity.

3.2. Profile and Personalization Data

Users may customize their profile within the application. This includes the creation and storage of avatar configurations, selection of cosmetic items (such as jerseys or other digital elements), and any other personalization preferences associated with their account.

3.3. Gameplay and Performance Data

The application collects and generates data related to the user’s participation in quiz games. This may include scores, results (wins, draws, losses), rankings, performance metrics, progression history, and other gameplay-related statistics necessary to provide and enhance the gaming experience.

3.4. Social Interaction Data

In connection with the application’s social features, data may be collected and processed relating to the user’s interactions with other users. This includes friend lists, sent and received friend requests, search queries for other users by username, and any in-app interactions enabled by the platform’s functionality.

3.5. User Activity and Usage Data

The application may collect information about how users interact with the app. This includes data such as app launches, screen views, session duration, feature usage, navigation patterns, and interaction events. This information is generally collected in an aggregated or pseudonymized form to improve the functionality, usability, and performance of the application.

3.6. Device and Technical Data

Certain technical information may be collected automatically from the user’s device. This may include device type, operating system, device identifiers, language settings, application version, IP address (where applicable), and general diagnostic data necessary for ensuring compatibility, security, and proper functioning of the application.

3.7. Push Notification Data

To enable push notifications, the application collects and processes device-specific push notification tokens through third-party providers such as OneSignal. This data is used solely for delivering notifications related to the user’s account, gameplay, and application activity.

3.8. Advertising and Marketing Data

The application may collect or receive data related to advertising interactions through third-party services such as Google AdMob. This may include advertising identifiers, device identifiers, and information about ad impressions or interactions, which may be used to display and optimize advertising content within the application.

3.9. In-App Purchase and Transaction Data

When users make purchases within the application, such as acquiring digital items or subscribing to premium features, certain transaction-related information may be processed. This may include purchase confirmations, subscription status, and transaction identifiers. Payment details are processed exclusively by the Apple App Store and are not collected or stored by the application operator.

3.10. Error Reporting and Diagnostic Data

The application may collect information related to crashes, errors, and technical issues through monitoring tools such as Sentry. This may include error logs, device state information at the time of the error, and other diagnostic data necessary to identify and resolve technical problems.

4. Data Retention

Personal data collected through the OneBallr application is retained only for as long as necessary to fulfill the purposes for which it was collected, including the provision of services, maintenance of user accounts, improvement of the application, and ensuring the security and integrity of the platform. Retention periods are determined based on the type of data, its purpose, and the user’s interaction with the application.

4.1. Account Registration and Authentication Data

Account-related data, including email address, username, password (stored in a secure hashed format), and authentication records, is retained for as long as the user maintains an active account. This data is necessary to enable continuous access to the application and to ensure account security.

4.2. Profile and Personalization Data

Profile data, including avatar configurations, customization settings, and cosmetic items, is retained for the duration of the user’s account in order to preserve the user’s personalized experience and access to purchased or unlocked features.

4.3. Gameplay and Performance Data

Gameplay data, including scores, rankings, match results, and performance statistics, is retained while the user’s account remains active to ensure continuity of gameplay, tracking of progress, and proper functioning of competitive features.

4.4. Social Interaction Data

Data related to social interactions, including friend lists, friend requests, and user search activity, is retained for as long as necessary to maintain the social functionalities of the application and remains associated with the user’s account while it is active.

4.5. User Activity and Usage Data

Usage data and analytics information collected through tools such as Firebase Analytics may be retained in aggregated or pseudonymized form for extended periods, as necessary to analyze user behavior, improve functionality, and optimize the application’s performance.

4.6. Device and Technical Data

Device-related and technical data is retained for as long as necessary to ensure compatibility, maintain system performance, prevent misuse, and diagnose technical issues, after which such data may be deleted or anonymized.

4.7. Push Notification Data

Push notification tokens collected through services such as OneSignal are retained for as long as notifications remain enabled on the user’s device or until such tokens are no longer valid, deleted, or replaced.

4.8. Advertising and Marketing Data

Advertising-related data collected through third-party providers such as Google AdMob is retained in accordance with the retention practices of such providers and for as long as necessary to support advertising delivery, measurement, and optimization.

4.9. In-App Purchase and Transaction Data

Transaction-related data, including purchase confirmations and subscription status, is retained for as long as necessary to manage purchases, provide access to digital content, and address any transaction-related issues or inquiries.

4.10. Error Reporting and Diagnostic Data

Error logs, crash reports, and diagnostic data collected through tools such as Sentry are retained for the period necessary to identify, analyze, and resolve technical issues, after which such data may be deleted or anonymized.

4.11. Account Deletion and Residual Data

Users may delete their account at any time through the application. Upon deletion, personal data associated with the account will be deleted or irreversibly anonymized within a reasonable timeframe. However, certain data may be retained temporarily where necessary for internal operational purposes, the resolution of disputes, the enforcement of agreements, or the protection of the application’s security and integrity. Residual data may remain in backup systems for a limited period before being securely deleted or anonymized in accordance with standard data lifecycle practices.

5. Purposes of Data Collection

The personal data collected through the OneBallr application is processed for specific, explicit, and legitimate purposes directly related to the operation, functionality, improvement, and security of the application. Such data is used in a manner that is proportionate and limited to what is necessary to achieve the purposes described below, which are aligned with the nature of the services provided within the platform.

The purposes of data processing are defined according to the categories of data collected as follows:

5.1. Account Registration and Authentication Data

Data provided during account creation and login is processed for the purpose of establishing and managing user accounts, verifying user identity, enabling secure authentication, maintaining account integrity, and preventing unauthorized access or fraudulent activity.

5.2. Profile and Personalization Data

Profile-related data, including avatar configurations and customization preferences, is processed to enable users to personalize their in-app identity, enhance their user experience, and provide access to purchased or unlocked cosmetic features.

5.3. Gameplay and Performance Data

Gameplay-related data is processed to deliver the core functionalities of the application, including the operation of quiz matches, calculation of scores, tracking of user performance, generation of rankings, and maintenance of game progression and statistics. This data also supports the balancing and improvement of gameplay mechanics.

5.4. Social Interaction Data

Data related to social features is processed to facilitate user interaction within the platform, including the ability to search for other users, send and receive friend requests, manage friend lists, and enable competitive or interactive gameplay experiences between users.

5.5. User Activity and Usage Data

Usage data is processed to analyze how users interact with the application, identify trends and patterns, improve usability and functionality, optimize performance, and support the development of new features and enhancements.

5.6. Device and Technical Data

Technical and device-related data is processed to ensure compatibility with different devices and operating systems, maintain the stability and security of the application, diagnose technical issues, and optimize performance across various environments.

5.7. Push Notification Data

Push notification data is processed to deliver relevant notifications to users, including updates related to gameplay, account activity, social interactions, and application features, thereby enhancing user engagement and ensuring timely communication.

5.8. Advertising and Marketing Data

Advertising-related data is processed to display advertisements within the application, manage and optimize advertising delivery, measure the effectiveness of advertising campaigns, and, where applicable, provide a more relevant advertising experience based on user interactions.

5.9. In-App Purchase and Transaction Data

Transaction-related data is processed to manage in-app purchases, verify transactions, grant access to purchased digital content or premium features, maintain subscription status, and ensure proper functionality of paid services within the application.

5.10. Error Reporting and Diagnostic Data

Error and diagnostic data is processed to detect, analyze, and resolve technical issues, crashes, and malfunctions within the application, ensuring continuous operation, improving reliability, and maintaining a high standard of service quality.

6. Third-Party Service Providers

The OneBallr application integrates and relies on certain third-party service providers to support its functionality, performance, communication features, analytics, and monetization. These third parties may process personal data on behalf of the application operator or independently, depending on their role. The data shared with or collected by such providers is limited to what is necessary for the specific services they perform.

By using the application, the user acknowledges and accepts that certain data may be processed by the following third-party providers:

6.1. Google AdMob (Advertising Services)

Google AdMob is used to display advertisements within the application. Through this service, certain data may be collected or accessed, including advertising identifiers, device identifiers, IP address (where applicable), and information related to ad impressions and interactions. This data is used to deliver, manage, and optimize advertising content and may be used to provide personalized or non-personalized ads depending on the user’s device settings and preferences.

6.2. OneSignal (Push Notification Services)

OneSignal is used to deliver push notifications to users. In order to provide this functionality, device-specific push notification tokens and related technical identifiers are collected and processed. This data is used solely for the purpose of sending notifications related to account activity, gameplay updates, and application features.

6.3. Firebase Analytics (Usage Analytics and Performance Monitoring)

Firebase Analytics is used to collect and analyze information about how users interact with the application. This may include data such as app usage patterns, session duration, screen views, interaction events, and general behavioral metrics. The data collected is typically aggregated or pseudonymized and is used to improve the application’s performance, functionality, and user experience.

6.4. Sentry (Crash Reporting and Error Monitoring)

Sentry is used to monitor application stability and identify technical issues. This service may collect diagnostic data such as error logs, crash reports, device state information at the time of an error, and limited technical identifiers. This data is used exclusively to detect, analyze, and resolve technical problems and improve the reliability of the application.

6.5. Apple App Store (In-App Purchase Processing)

All in-app purchases and subscription transactions are processed exclusively through the Apple App Store in-app purchase system. As part of this process, Apple may collect and process payment-related data, transaction identifiers, subscription details, and billing information. The application operator does not collect, access, or store users’ payment card details or financial information.

7. How We Share Information

The personal information of our users is an important and fundamental part of our platform. Under no circumstances will we sell or share information with third parties that has not been previously authorized by the user or owner of the personal data. We share user information only and exclusively as described below.

7.1. Communications and notifications: 

By registering, creating an account, and using the OneBallr platform, the user expressly accepts and authorizes OneBallr to send them communications related to the operation and use of the service via email and push notifications within the mobile application. Such communications may include, but are not limited to, account confirmations, operational notices, security updates, account activity information, notifications related to advertisements, as well as promotional or marketing communications about services, features, offers, or news about the platform. 

The user acknowledges that push notifications are an integral part of the app experience and that their receipt can be managed through the device settings or the app itself, where applicable. In the case of marketing communications sent by email, the user may unsubscribe at any time by using the “unsubscribe” option included in such emails or by sending a request through the contact information provided by OneBallr. Unsubscribing will not affect the receipt of communications that are strictly necessary for the provision of the service or related to the security and administration of the account.  

7.2. Business Transfers 

In the event that OneBallr creates, merges with, or is acquired by another entity, your information will most likely be transferred. OneBallr will email you or place a prominent notice on our platform before your information becomes subject to another privacy policy.

7.3. Protection of OneBallr and others 

We release personal information when we believe release is appropriate to comply with the law, enforce or apply our Terms and conditions and other agreements, or protect the rights, property, or safety of OneBallr, our users or others. This includes exchanging information with other companies and organizations for fraud protection and credit risk reduction.

7.4. With Your Consent

Other than as set out above, you will receive notice when personally identifiable information about you might go to third parties, and you will have an opportunity to choose not to share the information.

8. Protecting Your Information

We grant access to your personal information only to those outside persons or services that have a legitimate need to know it and in accordance with our privacy policy. We adhere to industry-recognized security standards to protect your personal information, both during transmission and in storage. However, it is important to note that no method of transmission over the Internet or electronic storage is foolproof and 100% secure. Therefore, while we at OneBallr strive to implement commercially viable data protection methods, we cannot ensure absolute security of your personal information. We undertake not to sell, distribute or transfer your personal data to unauthorized third parties, unless we have your explicit consent or are required by law to do so.

9. Data Breach Notifications

In the event of a security breach that compromises the confidentiality of our users' personal data, OneBallr undertakes to notify those affected in a timely manner. This notification will be made through the means of contact that have been provided by the user on our platform. We will take all reasonable measures to protect the information and remedy any situation that jeopardizes the security of your data.

10. International Data Transfers

OneBallr may transfer users' personal data outside of the United States due to the use of hosting, storage and processing services provided by third parties that operate servers located in different countries. These transfers are necessary to ensure the continued operation of the platform and to provide an efficient user experience. Although OneBallr is based in Germany, the technological infrastructure it uses may result in data being stored or processed in jurisdictions with data protection laws that differ from those of Germany and the European Union.

OneBallr is committed to ensuring that all international transfers of personal data comply with applicable data protection regulations, including appropriate security measures to safeguard user information. This includes, but is not limited to, implementing standard contractual clauses, assessing the adequacy of data protection in the receiving country, and complying with applicable privacy standards on third party services.

By using OneBallr, users consent to the transfer, storage and processing of their data on servers located outside their country of residence, acknowledging that such transfers are necessary for the operation of the platform. OneBallr undertakes to take all reasonable steps to protect the integrity and security of personal data during such international transfers. 

11. Privacy Rights

Users of the OneBallr application are entitled to exercise a range of rights in relation to their personal data. These rights are granted under applicable data protection laws, including those in Germany and the European Union, as well as other international privacy frameworks where applicable. The application is committed to facilitating the effective exercise of these rights and ensuring that users maintain control over their personal data.

Users may exercise the following rights:

• Right of Access: Users have the right to obtain confirmation as to whether their personal data is being processed and, where that is the case, to request access to such data, including information about the purposes of processing, categories of data involved, and recipients of the data.
• Right to Rectification: Users have the right to request the correction of inaccurate or incomplete personal data concerning them without undue delay.
• Right to Erasure (Right to be Forgotten): Users may request the deletion of their personal data where such data is no longer necessary for the purposes for which it was collected, where consent has been withdrawn, or where the data has been unlawfully processed.
• Right to Restriction of Processing: Users have the right to request the limitation of the processing of their personal data in certain circumstances, such as where the accuracy of the data is contested or where the processing is unlawful but the user opposes deletion.
• Right to Data Portability: Users have the right to receive the personal data they have provided in a structured, commonly used, and machine-readable format and, where technically feasible, to have such data transmitted to another controller.
• Right to Object: Users have the right to object, on grounds relating to their particular situation, to the processing of their personal data, particularly where such processing is based on legitimate interests or is carried out for direct marketing purposes.
• Right to Withdraw Consent: Where data processing is based on consent, users have the right to withdraw their consent at any time, without affecting the lawfulness of processing carried out prior to such withdrawal.
• Right Not to Be Subject to Automated Decision-Making: Users have the right not to be subject to decisions based solely on automated processing, including profiling, that produce legal effects or similarly significant effects, except where such processing is permitted under applicable law.
• Right to Lodge a Complaint: Users have the right to lodge a complaint with a competent data protection authority, particularly in the country of their habitual residence, place of work, or place of the alleged infringement, if they consider that the processing of their personal data infringes applicable data protection laws.

To exercise any of the rights described above, users may submit a request by contacting the application operator through the contact details provided in this Privacy Policy. Requests should include sufficient information to verify the identity of the requester and to clearly specify the right being exercised. Where necessary, additional information may be requested to confirm the identity of the user and ensure the security of personal data.

Requests will be processed without undue delay and, in any event, within a maximum period of one (1) month from the date of receipt. This period may be extended by up to two (2) additional months where necessary, taking into account the complexity and number of requests. In such cases, the user will be informed of the extension and the reasons for the delay within the initial one-month period.

Where a request is manifestly unfounded, excessive, or repetitive, the application operator reserves the right to refuse to act on the request or to charge a reasonable fee based on administrative costs, in accordance with applicable data protection standards.

Users may also exercise certain rights directly within the application, such as deleting their account through the available functionality, without the need to submit a formal request.

12. Account Deletion

Users may delete their account at any time through the “Delete Account” function available within the OneBallr application. Upon deletion, the account is deactivated and no longer accessible or visible within the app; however, the application operates a soft deletion system, meaning that the account is marked as deleted rather than permanently removed from the database. Certain associated data may be retained in a restricted, non-active state in order to preserve the integrity and consistency of the platform, including game history, statistics, rankings, notifications, and other relational data. Such data is not used for active purposes and may be anonymized or further restricted in accordance with internal data management practices. Account deletion is irreversible, and users will not be able to recover their data once the process is completed.

13. Children's Online Privacy Protection

The OneBallr application is designed to be accessible to a general audience and may be used by individuals aged 4 years and older, in accordance with its app store age rating. However, the application recognizes the importance of protecting the privacy of children and is committed to implementing appropriate safeguards when personal data of minors is involved.

Where users are considered children under applicable data protection laws, including those within the European Union and Germany, the processing of personal data may be subject to additional requirements, including the involvement of a parent or legal guardian where necessary. In particular, where the provision of personal data requires consent under applicable laws, such consent must be given or authorized by the holder of parental responsibility if the child has not reached the legally required age for independent consent.

The application does not knowingly collect excessive personal data from children and limits data collection to what is necessary to provide the core functionalities of the service, such as account creation, gameplay, and basic profile customization. No sensitive personal data is intentionally requested from minors.

Parents or legal guardians who believe that a child has provided personal data without appropriate authorization may contact the application operator to request review, correction, or deletion of such data. The application will take reasonable steps to verify the request and, where appropriate, promptly delete or restrict access to the relevant data.

The application may display advertising through third-party services. Where required by applicable laws, appropriate measures will be taken to ensure that such advertising practices are adapted to children, including limitations on personalized advertising where applicable.

The application encourages parents and guardians to supervise children’s use of digital services and to educate them about safe and responsible online behavior.

14. Thrid Parties

Except as otherwise expressly included in this privacy policy, this document addresses only the use and disclosure of information that OneBallr collects from you. If you disclose your information to third parties, whether other users or third parties, different rules may apply to their use or disclosure of the information you disclose to them. OneBallr does not control the privacy policies of third parties, and you are subject to the privacy policies of those third parties where applicable. OneBallr is not responsible for the privacy or security practices of other websites, platforms or services, including those linked from our platform. Please review the privacy policies of any third-party websites, platforms or services you access through the OneBallr platform. 

15. Changes to Privacy Policy

We reserve the right to change our privacy policy at any time. Changes will be promptly notified to our users through any electronic means and posted on the platform. Your continued use of our platform following such changes will signify your acceptance of the changes.

16. Contact Information

If you have questions or concerns about this privacy policy and the handling and security of your data, please contact us through our contact information below:

OneBallr - Football Quiz Match. 

E-mail: oneballrapp@gmx.de