SQL Students Privacy Policy

Last updated: November 6, 2026

JornicDevs LLC (hereinafter, "we," "our," or the "Company") operates the SQL Students mobile application (hereinafter, the "Application").

This Privacy Policy describes how we collect, use, process, store, and protect information from users who use our Application, as well as the rights related to that information.

By using SQL Students, you acknowledge that you have read this Privacy Policy and understand the information-handling practices described herein.

1. Information We Collect

A. Personal and Account Information

The information collected depends on the authentication method used:

  • Registration by email: email address, username, and login credentials managed through Firebase Authentication.
  • Google authentication: name and email address associated with the Google account, according to the information provided by the authentication service.
  • Anonymous access: a unique user identifier (UID) is generated through Firebase Authentication. This method does not require providing a name or email address.

B. Account Status and Information

We may store administrative information related to account management and operation, including:

  • Unique user identifier (UID).
  • Account status (active, suspended, or inactive).
  • Email verification status, where applicable.
  • Account type and access level.
  • Information necessary to manage the Application's features and permissions.

C. Technical and Device Data

While using the Application, we may process technical information related to the device, such as:

  • Device name.
  • Hardware model.
  • Android ID.

This information is temporarily processed through caching mechanisms on the ASP.NET Core application server for the purpose of managing sessions, verifying access conditions, maintaining compatibility, and ensuring the proper operation of the services.

These data are not stored as permanent records in our databases. Their temporary retention is subject to the operation and expiration of the server cache and session-management processes.

2. Use of Information

We use the collected information for the following purposes:

  • To provide, maintain, and manage access to SQL Students and its SQL practice tools.
  • To authenticate users and manage their accounts, sessions, and permissions.
  • To manage the available databases and the features associated with each type of user.
  • To process SQL queries executed within the Application.
  • To manage features unlocked through rewarded advertisements.
  • To analyze the Application's performance and detect technical errors.
  • To prevent fraudulent activities, unauthorized access, and misuse of our services.
  • To comply with applicable legal obligations.

A. Access to Sample Databases

All users, both anonymous and registered, can access the predefined sample databases:

  • Northwind.
  • AdventureWorks.
  • Chinook.

These databases are enabled exclusively for data retrieval queries (read-only), without allowing modifications to their original data.

B. Creation of Personal Databases

Users registered through email or a Google account can access the feature for creating independent personal databases.

These databases allow users to practice SQL, including DDL (Data Definition Language) and DML (Data Manipulation Language) operations, among other features available in the Application.

Information entered and generated within these databases is processed to provide the service and allow users to carry out their SQL practice activities.

3. Service Providers and Third Parties

To provide, maintain, and monetize SQL Students, we use third-party services that may process certain user information in accordance with their respective privacy policies.

A. Firebase Authentication and Services

We use Google Firebase services to manage authentication and certain data related to user accounts.

The services used include:

  • Firebase Authentication: management of registrations, authentication, and login credentials.
  • Cloud Firestore and/or Firebase Realtime Database: storage and management of information related to user accounts and the operation of the Application, as applicable.

Google Privacy Policy:
https://policies.google.com/privacy

B. Analytics

We use Firebase Analytics to obtain statistical information about use of the Application, analyze its performance, and understand how users interact with its different features.

This service may collect information about usage events, interactions, identifiers, and device characteristics, in accordance with its configuration and Google's policies.

C. Advertising and Monetization

We use Google AdMob to display advertisements within SQL Students.

Advertising formats may include:

  • Rewarded advertisements, used to unlock certain features.
  • Interstitial advertisements.
  • Banner advertisements.

Google AdMob may collect and process information such as advertising identifiers, IP address, device information, and interactions with advertisements for the purpose of providing, measuring, and improving advertising services.

Advertisements may be personalized or non-personalized, depending on the applicable settings and available privacy options.

Google AdMob Privacy Policy:
https://policies.google.com/technologies/ads

4. Information Security

We implement reasonable technical and organizational measures to protect user information against unauthorized access, loss, alteration, disclosure, or destruction.

These protective measures include authentication mechanisms, access controls, communications protection, and restrictions on access to resources and databases.

Although we work to protect our users' information, no data storage or transmission system can guarantee absolute security.

5. User-Generated Information

SQL Students allows registered users to create and manage independent personal databases for practicing and executing SQL queries.

Information entered into these databases is processed and stored for the purpose of providing the Application's features.

Users are responsible for the information and content they enter into their databases. We recommend that users do not use the Application to store sensitive personal information, credentials, passwords, or other confidential information belonging to third parties.

6. Data Retention and Deletion

Information is retained for as long as necessary to provide the Application's services, manage accounts, and comply with applicable obligations.

A. Account Data and Firebase

When a user initiates the permanent account deletion procedure from within the Application, the process of deleting the data associated with that account begins.

As part of this procedure, the corresponding records in our Firebase services are deleted, including the existing authentication information in Firebase Authentication.

B. Personal Databases

Personal databases created by users have a deletion process that is independent of authentication data and account records.

For reasons related to the technical deletion and administration processes of our SQL servers, these databases may temporarily remain after the user has requested account deletion.

Their permanent deletion may take more than 72 hours from the start of the account deletion procedure.

During this period, these databases remain subject to the internal administration and deletion processes of our services.

C. Temporary Technical Data

Technical information processed through the ASP.NET Core server cache is retained temporarily and deleted in accordance with the cache expiration and session-management mechanisms.

7. Protection of Minors

SQL Students is an application intended for people interested in learning, studying, and practicing the SQL language.

The Application does not request a date of birth or specific information intended to determine users' ages. For this reason, we do not have sufficient information to reliably identify or verify whether a user is a minor.

Nevertheless, we do not intend to knowingly collect personal information from children under the age of 13 without the authorizations that may be required under applicable law.

If a parent or legal guardian believes that a minor has provided us with personal information without the required authorization, they may contact us to request its review and, where appropriate, its deletion.

8. Privacy Rights

Users may exercise the rights available to them under applicable personal data protection laws.

These include:

  • Requesting information about the personal data we retain.
  • Requesting the correction of inaccurate information.
  • Requesting the deletion of their account and associated personal data.
  • Withdrawing their consent when the processing of information is based on consent.
  • Submitting inquiries or requests related to the processing of their personal data.

Registered users can initiate the permanent deletion of their account directly through the configuration or profile options available within the Application.

For additional inquiries related to the processing of personal information, users may use our contact channel listed in this policy.

9. Changes to This Privacy Policy

We may update this Privacy Policy periodically to reflect changes to our services, features, providers, or information-handling practices.

When changes are made, we will publish the updated version of this policy and modify the last updated date shown at the beginning of the document.

We recommend reviewing this page periodically to stay informed about our privacy practices.

10. Contact

If you have any questions, inquiries, or requests related to this Privacy Policy or the processing of your personal data, you can contact us using the following details: