Privacy Policy

Last Updated: September 6, 2026

Welcome to Mark Book (the “App”), developed and published by PinFlares (“we,” “us,” or “our”). This Privacy Policy explains how we collect, use, disclose, and safeguard information when you use our mobile application.

Please read this Privacy Policy carefully. If you do not agree with the terms of this Privacy Policy, please do not use the App.

1. Information We Collect

A. Data Stored Locally on Your Device

The core functionality of Mark Book involves managing educational information, including:

  • Teacher and school names
  • Class and subject structures
  • Student profiles, such as names and roll numbers
  • Academic performance and test marks
  • Attendance, grades, notes, and other information you choose to enter into the App

Important Notice: All educational data that you enter into Mark Book is stored locally on your device using local database technology such as SQLite/Drift.

We do not intentionally transmit, upload, or store your educational data on our own servers.

Your educational data remains on your device unless you explicitly choose to export, print, or share it using the App’s export or sharing functionality or your device’s native sharing capabilities.

Once you choose to share or export information, the resulting copy may be handled by the application, cloud service, messaging service, or other destination that you select and will be subject to that service’s privacy practices.

B. Data Collected Automatically Through Third-Party Services

Although we do not intentionally collect or store your educational records on our servers, certain third-party services integrated into the App may automatically collect technical and usage information.

This information may include:

  • Device model and operating system version
  • App version and language
  • Hardware and technical information
  • Advertising identifiers, such as Google Advertising ID (AAID) or Apple’s Identifier for Advertisers (IDFA), where applicable
  • App launch information
  • Crash reports and diagnostic information
  • Performance metrics
  • General feature and usage information
  • Installation or instance identifiers

These services use such information to provide advertising, analytics, crash reporting, performance monitoring, and other technical functionality.

2. Third-Party Services We Use

Mark Book uses selected third-party services. These providers have their own privacy policies governing their collection and processing of information.

A. Google AdMob

We use Google AdMob to display advertisements in the free version of Mark Book.

AdMob may collect and process information such as advertising identifiers, device information, approximate location information, and usage information to provide, measure, personalize, and improve advertisements, as well as to prevent fraud and abuse.

Depending on your location, device settings, and applicable laws, advertisements may be personalized or non-personalized.

You can manage your advertising preferences through your device settings and, where available, Google’s advertising controls.

Privacy Policy: Google Privacy Policy

B. Firebase Analytics

We use Firebase Analytics to understand general usage of the App and improve its features and user experience.

Firebase Analytics may collect information such as app events, session information, device information, app version, and general interaction data.

We do not intentionally use Firebase Analytics to collect or upload the educational records that you enter into Mark Book.

C. Firebase Crashlytics

We use Firebase Crashlytics to identify crashes, errors, and technical problems and to improve App stability.

Crash reports may contain technical information such as device information, operating system information, App version, installation identifiers, and crash stack traces.

D. Firebase Performance Monitoring

We may use Firebase Performance Monitoring to understand App performance, including information such as app startup time, network performance, and other technical performance metrics.

This information helps us identify performance problems and improve the reliability of the App.

E. Firebase Cloud Messaging

We may use Firebase Cloud Messaging (FCM) to deliver push notifications that you have enabled.

FCM may process a unique device registration token and other technical information required to deliver notifications to your device.

F. Firebase Remote Config

We may use Firebase Remote Config to remotely manage selected App configuration settings without requiring a new App version for every configuration change.

Remote Config may process technical information necessary to determine which configuration should be provided to your device.

Firebase Privacy Information: Firebase Privacy and Security

3. How We Use Information

Automatically collected technical and usage information may be used to:

  • Display advertisements in the free version of the App.
  • Measure and improve advertising performance.
  • Monitor App performance and stability.
  • Identify and resolve crashes, errors, and bugs.
  • Understand general App usage patterns.
  • Improve features and user experience.
  • Deliver push notifications that you have enabled.
  • Provide appropriate remote App configurations.
  • Detect and prevent fraud, abuse, and security issues.
  • Maintain and improve the reliability of the App.

We do not sell, rent, or trade the educational data that you enter into Mark Book.

4. Disclosure of Information

We do not sell, rent, or trade your personal information.

We may allow selected third-party service providers to process limited technical, advertising, analytics, diagnostic, or subscription-related information when necessary to provide their services.

We may also disclose information when reasonably necessary to:

  • Comply with applicable laws, regulations, legal processes, or governmental requests.
  • Respond to valid legal requests from public authorities.
  • Protect our rights, property, or safety.
  • Protect users or the public.
  • Detect or prevent fraud, abuse, or security incidents.
  • Facilitate a merger, acquisition, reorganization, or sale of all or part of our business, subject to applicable law.

Your educational records stored locally in the App are not intentionally transmitted to us or our third-party providers unless you explicitly choose to export or share them.

5. Security of Your Information

We take reasonable administrative, technical, and organizational measures designed to protect information processed through the App and our services.

Because your primary educational data, including student names, marks, grades, and class information, is stored locally on your device, the security of that data also depends on the security of your device.

We recommend protecting your device with:

  • A strong PIN or password
  • Biometric authentication, where available
  • Device encryption
  • Current operating system and security updates

Information transmitted to applicable third-party providers may be protected using appropriate security measures, such as encrypted network connections.

However, no electronic storage or transmission method can be guaranteed to be completely secure.

6. Children’s Privacy

Mark Book is designed as a utility for teachers, educators, and other users managing educational records, rather than for children.

The App is not directed toward children under the age of 13, and we do not knowingly collect personal information directly from children under 13.

Student Data

Student information entered into Mark Book is entered by the educator or other authorized user and is designed to remain stored locally on that user’s device.

We do not intentionally collect student names, roll numbers, marks, grades, or other educational records on our servers.

If you believe that a child has provided personal information directly to us through the App, please contact us.

7. Your Data Protection Rights

Depending on your location, you may have rights under applicable privacy laws, including the General Data Protection Regulation (GDPR), California Consumer Privacy Act/California Privacy Rights Act (CCPA/CPRA), and other applicable laws.

Depending on applicable law, these rights may include:

  • The right to know what information is collected or processed.
  • The right to access personal information.
  • The right to request correction of inaccurate information.
  • The right to request deletion of certain information.
  • The right to object to or restrict certain processing.
  • The right to opt out of certain advertising or tracking activities.
  • The right to data portability, where applicable.
  • The right to withdraw consent where processing is based on consent.

Locally Stored Educational Data

Because educational records are stored locally on your device rather than on our servers, we generally cannot access, retrieve, modify, or delete those records on your behalf.

You can delete locally stored educational data through the App, where applicable, or by clearing the App’s storage or uninstalling the App through your device settings.

If you export or share your educational data, you are responsible for managing copies created outside the App.

Advertising Preferences

You can manage advertising and tracking preferences through your device’s privacy settings and other controls provided by the relevant advertising provider.

8. Data Retention

Educational data entered into Mark Book is designed to remain stored locally on your device. We do not maintain those educational records on our own servers.

Technical, analytics, crash, performance, advertising, and other service-related information may be retained by us or our third-party service providers for periods reasonably necessary to provide services, improve the App, maintain security, prevent fraud, resolve disputes, and comply with applicable legal obligations.

Retention periods may vary depending on the type of information and the third-party service involved.

9. Changes to This Privacy Policy

We may update this Privacy Policy from time to time to reflect changes to the App, our services, third-party providers, or applicable legal requirements.

When we make changes, we will update the “Last Updated” date at the top of this Privacy Policy.

We encourage you to review this Privacy Policy periodically to stay informed about how we handle information.

Your continued use of the App after an updated Privacy Policy becomes effective constitutes acceptance of the updated Privacy Policy to the extent permitted by applicable law.

10. Contact Us

If you have any questions, concerns, suggestions, or requests regarding this Privacy Policy or our privacy practices, please contact us:

Email: sangizoneuzm@gmail.com

Website: pinflares.com

Last Updated: September 6, 2026