Effective Date: March 19, 2022
Last Updated: August 8, 2026

At HeadTeacher.ng, we are committed to protecting your privacy and providing a secure and transparent experience across our websites, educational applications, and digital reading services.

This Privacy Policy explains how we collect, use, store, disclose, and protect information when you use HeadTeacher.ng and Lybro: Digital Library.

This Policy is intended to comply with applicable privacy and data-protection laws, including the Nigeria Data Protection Act 2023 (NDPA) and other applicable regulations.

1. Who We Are

HeadTeacher.ng operates educational and digital-content services, including:

• Website: HeadTeacher.ng
• HeadTeacher.ng Android application
• HeadTeacher.ng Progressive Web App (PWA)
• Lybro: Digital Library, our book and audiobook reading application

HeadTeacher.ng provides educational resources such as lesson notes, schemes of work, examinations, worksheets, and teaching materials.

Lybro provides access to a large digital library of books, audiobooks, public-domain works, curated collections, reading lists, and related reading features.

This Privacy Policy applies to information processed through all of these services unless a particular feature states otherwise.

2. Information We Collect

We collect only information reasonably necessary to provide, secure, improve, personalize, and monetize our services.

2.1 Account and Profile Information

When you create an account, sign in, or update your profile, we may collect:

• Name
• Email address
• Profile photograph or avatar, where provided
• Account identifier
• Authentication provider information, such as Google Sign-In
• Optional profile information you choose to provide
• Account preferences and settings

Where third-party authentication is used, we receive only information made available to us by the authentication provider according to the permissions you approve.

2.2 Reading and Library Activity in Lybro

When you use Lybro, information associated with your reading experience may include:

• Books you open or read
• Audiobooks you open or listen to
• Reading progress
• Last-read position
• Last-used book file or reading source
• Reading format, such as EPUB, PDF, HTML, text, or audiobook
• Bookmarks
• Highlights
• Annotations or notes
• Reader mode preferences, such as infinite scroll or swipe/page mode
• Font size, theme, margins, line spacing, and other reader preferences
• Reading history
• Continue-reading information
• Search and discovery activity
• Categories and reading lists viewed
• Books saved, downloaded, or added to personal library features

Lybro may maintain separate last-read locations for different available files of the same book while using the most recently used file to determine the book’s current overall reading progress.

Some reading information may be stored locally on your device. Where account synchronization or server-backed library features are provided, relevant information may also be associated with your account.

2.3 Audiobook Activity

When you use audiobook features, we may process information such as:

• Audiobook selected
• Playback position
• Playback progress
• Listening history
• Audio source or file used
• Playback settings

This information is used to resume playback and improve the audiobook experience.

2.4 Downloads and Offline Content

Lybro and HeadTeacher.ng may allow content to be downloaded or cached for offline use.

Locally stored information may include:

• Downloaded EPUB, PDF, HTML, text, image, or audio files
• Book cover images
• Cached book metadata
• Cached educational resources
• Reader-generated files needed to display content
• Offline reading position
• Offline bookmarks and preferences

Downloaded content generally remains on your device until you remove it, clear application data, uninstall the application, or the application removes expired cache files.

2.5 Device and Technical Information

We and our service providers may automatically receive limited technical information, including:

• Device manufacturer and model
• Operating system and version
• Application version
• Language and locale
• Screen and device characteristics
• Network and connection information
• IP address
• Crash and diagnostic information
• Application performance information
• Device or advertising identifiers where permitted
• Authentication and security-related identifiers

This information may be used for application compatibility, analytics, advertising, fraud prevention, troubleshooting, and security.

2.6 Push Notification Information

If you enable notifications, we may process:

• Push notification token
• Device/platform information
• Notification preferences
• Delivery or interaction information where supported by the notification provider

Notifications may include:

• New books or audiobooks
• New educational resources
• Reading recommendations
• Reading-list updates
• Account or security notices
• Application announcements
• Subscription-related notices
• Other service updates

You can disable notifications through your device settings.

2.7 Advertising Information

Users who do not have an active ad-free entitlement may see advertising.

Advertising systems may process information such as:

• Advertising identifier
• Device information
• IP address
• Approximate location derived from IP address
• Ad impressions
• Ad interactions
• Application usage information
• Consent or advertising-preference signals

Depending on applicable law, device settings, consent status, and advertising configuration, advertisements may be personalized or non-personalized.

Lybro may display:

• App-open advertisements
• Interstitial advertisements
• Native advertisements
• Banner advertisements
• Collapsible banner advertisements
• Reader-related advertisements

Users with an active qualifying Lybro ad-free subscription will have Lybro advertising disabled while their entitlement remains valid.

3. Subscription and Google Play Billing Information

Lybro may offer paid subscriptions that remove advertisements.

Purchases on Android are processed through Google Play Billing.

3.1 Information Processed for Subscriptions

When you purchase or restore a subscription, we may process and store information including:

• Your Lybro account identifier
• Google Play subscription product ID
• Google Play base-plan ID
• Purchase token
• Subscription status
• Purchase or order reference where supplied by Google
• Subscription start time
• Subscription expiry or renewal time
• Acknowledgement status
• Last verification time
• Whether your account currently has an ad-free entitlement

We use this information to:

• Verify purchases
• Prevent fraudulent or duplicated subscription claims
• Associate the subscription with the correct Lybro account
• Determine whether advertising should be disabled
• Restore subscription benefits after you sign in again
• Detect expiration, cancellation, grace-period, or other entitlement changes

Google recommends sending purchase tokens to a secure backend and verifying purchases through the Google Play Developer API before granting subscription benefits.

3.2 Payment Information

We do not directly collect or store your full payment-card or bank-account details for Google Play purchases.

Payment processing is handled by Google Play.

Google may separately process information such as:

• Payment method
• Billing address
• Transaction information
• Tax information
• Google account information

Google’s handling of that information is governed by Google’s own privacy policies and Google Play terms.

4. Information We Do Not Intentionally Collect

We do not intentionally request or collect:

• Government-issued identification numbers
• Biometric identifiers
• Precise continuous GPS location
• Payment-card numbers for Google Play subscriptions
• Online banking credentials
• Passwords for third-party authentication providers
• Sensitive health information
• Sensitive political or religious information unless voluntarily provided in user-generated content

We do not knowingly collect personal data from children in circumstances prohibited by applicable law.

5. How We Use Information

We may use information to:

• Create and manage user accounts
• Authenticate users
• Maintain account security
• Provide books, audiobooks, educational resources, and downloads
• Restore reading and listening positions
• Maintain bookmarks, highlights, annotations, and reading history
• Provide continue-reading functionality
• Remember reader preferences
• Personalize content discovery
• Provide categories and curated reading lists
• Improve search and recommendations
• Deliver push notifications
• Provide customer support
• Detect abuse, fraud, and unauthorized activity
• Diagnose crashes and technical problems
• Improve application performance and user experience
• Display advertising to eligible users
• Verify Google Play subscriptions
• Remove advertising for eligible subscribers
• Restore subscription benefits
• Comply with legal obligations
• Protect our users, services, and rights

We do not sell personal information to advertisers.

6. Legal Bases for Processing

Where required by applicable law, we rely on one or more lawful bases for processing personal information, including:

• Contract: where processing is necessary to provide a service you requested
• Consent: where you have given consent, such as certain notifications or advertising choices
• Legitimate interests: including service security, fraud prevention, service improvement, and maintaining functionality
• Legal obligation: where processing is required by applicable law
• Other lawful bases permitted by applicable privacy law

The Nigeria Data Protection Act requires personal data to be processed fairly, lawfully, and accountably.

7. Third-Party Services

We may use third-party service providers to operate features of our services.

These may include:

Authentication

• Google Sign-In
• Other authentication providers where offered

Advertising

• Google AdMob
• Google AdSense
• Monumetric, where applicable to our websites
• Other advertising providers disclosed within the relevant service

Payments and Subscriptions

• Google Play Billing
• Google Play Developer API

Push Notifications

• OneSignal
• Firebase or Google notification infrastructure where applicable

Infrastructure and Content Delivery

• Cloudflare
• Hosting and server infrastructure providers

Analytics and Diagnostics

• Google/Firebase services or other analytics and diagnostic services where enabled

These providers may process data under their own privacy policies.

Useful policies include:

• Google Privacy Policy
• Google Advertising Policies
• Google Play Terms and Privacy information
• Firebase Privacy and Security documentation
• OneSignal Privacy Policy
• Cloudflare Privacy Policy

Our website may also use Monumetric for advertising.

This Site is affiliated with Monumetric (dba The Blogger Network, LLC) for the purposes of placing advertising on the Site, and Monumetric may collect and use certain data for advertising purposes. Please review Monumetric’s Publisher Advertising Privacy information for further details.

8. Cookies, Local Storage, and Similar Technologies

8.1 Website Cookies

Our websites may use cookies and similar technologies to:

• Keep users signed in
• Remember preferences
• Maintain security
• Measure traffic
• Analyze use
• Deliver advertising
• Store consent preferences

You can control cookies through your browser where supported.

8.2 Mobile Application Storage

Our mobile applications may use device storage, application databases, or preferences to store:

• Authentication information
• Reader settings
• Book progress
• File-specific reading positions
• Bookmarks
• Highlights
• Downloaded books
• Downloaded audiobooks
• Cached covers and metadata
• Recent activity
• Application configuration

Some of this information is device-only, while some may be synchronized with our servers where account synchronization is available.

9. Advertising and Your Choices

Users who are eligible to receive advertising may see advertisements provided by third-party advertising networks such as Google AdMob.

Depending on your location and applicable requirements, advertising may be personalized or non-personalized.

You may be able to manage advertising preferences through:

• Android privacy or advertising settings
• Google account advertising settings
• Consent controls presented within the application
• Other platform-provided controls

Users who purchase and maintain a valid Lybro ad-free subscription will not receive Lybro’s in-app advertising while the entitlement is active.

The subscription removes advertisements; it does not prevent operational data necessary for account security, purchases, content delivery, or service functionality from being processed.

10. Reading History, Progress, Bookmarks, and Highlights

Lybro is designed to remember where you stopped reading.

For books with multiple formats or sources:

• Each downloaded or available book file may maintain its own last reading location
• The most recently used file may determine the overall progress shown for the book
• Switching between EPUB, PDF, Smart Reader, or other supported formats may update the canonical book progress
• Returning to a previously used file may restore that file’s own saved reading position

Reading data is used to provide:

• Continue Reading
• Reading history
• Progress indicators
• Resume position
• Reading statistics where offered

You may be able to remove locally stored progress by clearing app data or using available account/library controls.

11. User-Generated Content

Where we provide comments, annotations, community discussions, reviews, or similar features, information you intentionally publish may become visible to other users.

Please do not post sensitive personal information in publicly visible content.

We may moderate or remove content that violates our terms, community standards, applicable law, or safety requirements.

12. Data Sharing and Disclosure

We may disclose information only when reasonably necessary for purposes including:

• Providing our services
• Processing Google Play subscriptions
• Serving advertising
• Sending notifications
• Hosting and content delivery
• Analytics and diagnostics
• Fraud and abuse prevention
• Legal compliance
• Enforcement of our rights
• Protection of users or the public
• Business restructuring, merger, acquisition, or transfer

We do not sell users’ personal information to third parties for their independent marketing purposes.

13. Data Retention

We retain personal information only for as long as reasonably necessary for the purposes described in this Policy.

Retention periods may depend on:

• How long your account remains active
• Whether information is required to provide a feature
• Subscription and transaction-verification requirements
• Security and fraud-prevention requirements
• Legal or regulatory obligations
• Resolution of disputes

Examples include:

• Account information may be retained while your account remains active
• Reading history may remain until deleted or the account is removed
• Downloads may remain on your device until removed
• Subscription verification records may be retained for accounting, fraud-prevention, dispute, and legal purposes
• Backup copies may remain for a limited period after deletion

When you request account deletion, we will delete or anonymize applicable personal data within a reasonable period, subject to information we are legally required or legitimately permitted to retain.

14. Security

We use reasonable technical and organizational safeguards designed to protect information, which may include:

• HTTPS/TLS encryption in transit
• Access controls
• Authentication controls
• Secure server infrastructure
• Restricted administrative access
• Encrypted storage of sensitive subscription credentials or tokens where applicable
• Purchase verification through Google Play
• Fraud and abuse detection
• Server monitoring
• Backups and recovery measures

No system can guarantee absolute security.

If we become aware of a qualifying personal-data breach, we will respond in accordance with applicable law.

15. International Data Transfers

HeadTeacher.ng is based in Nigeria.

Some service providers, including Google, Cloudflare, OneSignal, hosting providers, and other infrastructure providers, may process data in countries outside Nigeria.

Where required, we take reasonable steps to ensure international processing is conducted in accordance with applicable privacy and data-protection requirements.

16. Your Privacy Rights

Subject to applicable law, you may have rights to:

• Access personal information we hold about you
• Request correction of inaccurate information
• Request deletion
• Withdraw consent where processing relies on consent
• Object to certain processing
• Request restriction of processing
• Request portability of eligible information
• Opt out of certain communications
• Manage advertising preferences
• Delete your account
• Lodge a complaint with a data-protection authority

The Nigeria Data Protection Act provides rights and protections to data subjects and establishes the Nigeria Data Protection Commission as Nigeria’s data-protection regulator.

To exercise your rights, contact:

info@headteacher.ng
support@headteacher.ng

We may need to verify your identity before completing certain requests.

17. Account Deletion

Where account deletion is available, deleting your account may remove information including:

• Profile information
• Account-linked reading information
• Saved library information
• Account-linked preferences
• Other personal data associated with the account

Certain records may be retained where necessary for:

• Financial or transaction records
• Subscription verification
• Fraud prevention
• Legal compliance
• Dispute resolution
• Security

Deleting your Lybro account does not automatically cancel a Google Play subscription.

Google Play subscriptions must be managed or canceled through your Google Play subscription settings.

18. Children

Our services include educational and reading content that may be suitable for younger audiences, but our account and data-collection features are not intended to knowingly collect personal information from children where parental consent or other legal authorization is required.

We do not knowingly collect personal data from children under 13 without appropriate authorization.

If you believe a child has provided personal information improperly, contact:

info@headteacher.ng

and we will investigate and take appropriate action.

19. Books, Audiobooks, and External Content Sources

Lybro may make books, audiobooks, metadata, cover images, or related materials available from multiple content sources.

When content is retrieved from an external provider, your device may communicate with that provider or its content-delivery infrastructure. Those providers may receive technical information such as your IP address and browser or device request information.

We do not control independent third-party content providers’ privacy practices.

20. Changes to This Privacy Policy

We may update this Privacy Policy when:

• We introduce new features
• We add new data-processing activities
• We change service providers
• Legal requirements change
• Our advertising or subscription systems change

When appropriate, we may notify users through:

• The application
• Our website
• Email
• Push notification

The updated effective date will appear at the top of this Policy.

21. Contact Us

For privacy questions, account requests, complaints, or other concerns:

HeadTeacher.ng / Lybro Support

Email:
info@headteacher.ng
support@headteacher.ng

Website:
HeadTeacher.ng

Applications:
HeadTeacher.ng
Lybro: Digital Library

22. Governing Law and Regulatory Authority

This Privacy Policy is governed by applicable laws of the Federal Republic of Nigeria, including the Nigeria Data Protection Act 2023, and other applicable privacy and consumer-protection requirements.

The Nigeria Data Protection Commission is the principal regulatory authority established under the Nigeria Data Protection Act.

Nothing in this Policy limits rights available to users under applicable law.

Thank you for using HeadTeacher.ng and Lybro. We are committed to protecting your information while providing a useful, secure, and enjoyable learning and reading experience.