🛡️ Privacy Policy for Abacus Academy

Last Updated: September 2, 2025

1. Introduction

Welcome to Abacus Academy ("we," "our," or "us"). We are committed to protecting your privacy and ensuring the security of your personal information. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our mobile application for Computer Science & Application studies, featuring our innovative User ID-based ranking system.

2. Information We Collect

2.1 Information You Provide

Account Information: When you create an account or use our app, we collect your name, country, state, district, and other profile information.
Unique User ID: A timestamp-based unique identifier (USER_timestamp) is automatically generated for each user to ensure fair competition and prevent duplicate submissions.
Educational Data: We collect information about your exam preferences, subject selections, and learning progress.
Test Results: Your mock test scores, practice session results, and performance analytics.
Leaderboard Data: Your scores, rankings, and achievements for competitive features, identified by your unique User ID.
Feedback: Any feedback, comments, or reviews you provide about our app.
Job Preferences: Information related to job notifications and career preferences.

2.2 Automatically Collected Information

Device Information: Device type, operating system, unique device identifiers, and mobile network information.
Usage Analytics: App usage patterns, features accessed, and interaction data.
Performance Data: App performance metrics, crash reports, and error logs.
Location Data: General location information for job notifications and leaderboard filtering (with your consent).
Connectivity Data: Network status and connection quality for optimal app performance.
Edge-to-Edge Display Data: Display preferences and system UI interaction data for Android 15 compatibility.
Mathematical Interaction Data: Usage patterns for mathematical expression rendering and LaTeX processing.

2.3 Third-Party Services

We use the following third-party services that may collect additional information:

Google Services

Google Sheets: For storing and retrieving educational content, syllabus data, and leaderboard information
Google Play Services: For app updates, device compatibility, and in-app purchases
AdMob: For displaying advertisements and monetization
Google Generative AI (Gemini): For AI-powered educational assistance

OneSignal

Push Notifications: For sending educational reminders, job notifications, and app updates
Device Registration: To enable push notification delivery and user engagement

Firebase

Firebase Analytics: For user behavior tracking and app performance monitoring
Firebase Core: For foundation Firebase services integration
Real-time Database: For live data synchronization and updates
Performance Monitoring: For app performance analysis and optimization

Android System Services

Edge-to-Edge Display: For modern Android 15 compatibility and immersive experience
System UI Integration: For proper display handling across Android versions
WindowInsets Controller: For modern status bar and navigation bar management
AndroidX Core Libraries: For backward compatibility and modern API support

Other Services

PDF Generation: For creating downloadable study materials and test results
File Storage: For saving generated PDFs and study materials locally
Connectivity Monitoring: For ensuring optimal app performance and offline functionality

3. How We Use Your Information

3.1 Primary Uses

Educational Services: To provide personalized learning experiences, syllabus content, and study materials
Exam Preparation: To deliver mock tests, practice questions, and performance tracking
Progress Monitoring: To track your learning progress, test results, and subject mastery
Competitive Features: To manage leaderboards, rankings, and achievement systems using your unique User ID
Job Notifications: To provide relevant job opportunities and career updates
AI Assistance: To provide intelligent tutoring and educational support through Gemini AI

3.2 App Functionality

Content Delivery: To serve syllabus data, study notes, and educational resources
Performance Optimization: To ensure app stability, speed, and reliability
Feature Development: To understand usage patterns and develop new educational features
User Experience: To personalize content and improve app usability
User Management: To manage user profiles, data export, and account settings

3.4 Technical Optimization

Android 15 Compatibility: To ensure proper edge-to-edge display and modern UI features
Performance Monitoring: To identify and fix technical issues
Feature Development: To understand usage patterns and develop new features
Quality Assurance: To ensure app stability and reliability
Educational Insights: To improve content quality and learning outcomes
Leaderboard Analytics: To analyze competition patterns and improve ranking systems
System UI Management: To provide optimal display experience across Android versions
Display Optimization: To ensure proper app rendering on various screen types and cutouts

3.5 Legal Compliance

Legal Requirements: To comply with applicable laws and regulations
Security: To protect against fraud, abuse, and security threats

4. Information Sharing and Disclosure

4.1 We Do Not Sell Your Data

We do not sell, trade, or rent your personal information to third parties for marketing purposes.

4.2 Limited Sharing

We may share your information in the following limited circumstances:

Service Providers

Google Services: For app functionality, analytics, and AI assistance
OneSignal: For push notification services
AdMob: For advertisement display and monetization
PDF Services: For generating downloadable study materials

Educational Partners

Content Providers: For delivering syllabus and study materials
Analytics Services: For understanding app usage and improving services

Legal Requirements

When required by law or legal process
To protect our rights, property, or safety
To investigate potential violations of our terms

4.3 Data Processing

All third-party services we use are bound by their own privacy policies and data protection standards.

4.4 Leaderboard Data Sharing

Public Rankings: Your scores and rankings may be displayed on public leaderboards
User ID Display: Your unique User ID may be visible to other users for ranking purposes
Anonymous Display: User names are displayed in leaderboards while User IDs are used for system operations
Competition Fairness: User ID system ensures fair competition regardless of name similarities

5. Data Security

5.1 Security Measures

We implement appropriate technical and organizational measures to protect your information:

Encryption: Data transmission is encrypted using industry-standard protocols
Access Controls: Limited access to personal information on a need-to-know basis
Regular Updates: Security measures are regularly reviewed and updated
Secure Storage: Local data is stored securely on your device
User ID Protection: Unique User IDs are securely generated and protected

5.2 Data Retention

Active Use: We retain your information while you actively use our app
Deletion: You can request deletion of your data at any time
Backup: Some information may be retained in backup systems for a limited period
Local Storage: Generated PDFs and study materials are stored locally on your device
Leaderboard Data: Historical ranking data may be retained for competition integrity

6. Your Rights and Choices

6.1 Access and Control

You have the right to:

Access: Request a copy of your personal information
Correction: Update or correct inaccurate information
Deletion: Request deletion of your personal information
Portability: Request a copy of your data in a portable format (CSV export available)

6.2 Communication Preferences

Push Notifications: You can enable/disable push notifications in app settings
Job Notifications: You can control job-related notification preferences
Email Communications: You can opt out of marketing emails
Ad Personalization: You can control ad personalization settings

6.3 Data Processing

Consent: You can withdraw consent for data processing at any time
Objection: You can object to certain types of data processing
Restriction: You can request restriction of data processing

6.4 Local Data Control

PDF Downloads: You can delete generated PDFs from your device
Cache Management: You can clear app cache and local data
Storage Permissions: You can control file storage permissions
User Data Export: You can export your data in CSV format

6.5 Leaderboard Participation

Opt-Out: You can choose not to participate in leaderboards
Data Visibility: You can control what information is displayed publicly
Competition Settings: You can adjust your competitive feature preferences

7. Children's Privacy

7.1 Age Requirements

Our app is not intended for children under 13 years of age. We do not knowingly collect personal information from children under 13.

7.2 Parental Consent

If you are a parent or guardian and believe your child has provided us with personal information, please contact us immediately.

8. International Data Transfers

8.1 Data Location

Your information may be processed and stored in countries other than your own, including the United States and India.

8.2 Adequate Protection

We ensure that international data transfers comply with applicable data protection laws and regulations.

9. Third-Party Services

9.1 External Links

Our app may contain links to third-party websites or services. We are not responsible for their privacy practices.

9.2 Third-Party Policies

Please review the privacy policies of third-party services we use:

9.3 AI Service Privacy

When using our AI assistant feature powered by Google Gemini:

Conversation Data: Your AI interactions may be processed by Google's AI services
Data Retention: AI conversation data is subject to Google's privacy policies
Usage Analytics: Google may collect usage data for service improvement

10. Special Features and Data Collection

10.1 Educational Content

Syllabus Data: Retrieved from Google Sheets for dynamic content delivery
Study Notes: Educational materials and study guides
Mock Tests: Practice questions and exam simulations
Progress Tracking: Learning analytics and performance metrics

10.2 Competitive Features and Leaderboards

User ID System: Unique identifier system for fair competition and duplicate prevention
Global Rankings: Overall performance rankings across all subjects and tests
Topic-wise Rankings: Subject-specific leaderboards with location filtering
Achievements: Gamification elements and progress rewards
Social Features: User interactions and competitive elements
Duplicate Prevention: Smart detection using User ID + Mock Test ID

10.3 AI-Powered Features

Intelligent Tutoring: AI assistance for learning and problem-solving
Content Generation: AI-powered study materials and explanations
Personalized Learning: AI-driven content recommendations
Mathematical Rendering: AI-powered mathematical expression rendering and LaTeX processing

10.4 Job and Career Services

Job Notifications: Career opportunities and job alerts
Location Services: Geographic job matching (with consent)
Career Preferences: Job-related settings and preferences

10.5 Mathematical and Educational Content

LaTeX Processing: Mathematical expression rendering and processing
Greek Letters: Support for mathematical symbols and notation
Mathematical Operators: Processing of fractions, powers, and mathematical expressions
Content Filtering: Exam-wise and subject-wise content organization
Study Materials: Dynamic syllabus and notes delivery

10.6 User Management Features

Profile Creation: Mandatory user information collection on first launch
Data Export: CSV export functionality for user data and performance history
Account Management: Profile editing and data management capabilities
Privacy Controls: User control over data visibility and sharing

11. Google Sheets Integration and Data Processing

11.1 Google Sheets Data Collection

Our app integrates with Google Sheets to provide dynamic educational content:

Data Sources:

Educational Content: Questions, answers, and study materials stored in Google Sheets
Syllabus Data: Dynamic syllabus and study notes retrieved from cloud storage
Leaderboard Information: User scores and rankings stored in Google Sheets (using User IDs)
Mock Test Data: Test questions and configurations managed through Google Sheets

Data Processing Methods:

Direct API Access: Primary method using Google Sheets API (with API key)
Apps Script Fallback: Secondary method using Google Apps Script
CSV Export: Tertiary method for public sheet access
Local Caching: 24-hour cache for offline functionality and performance
Background Fetching: Continuous data updates when using sample data

Data Security:

Encrypted Transmission: All data transfers use HTTPS encryption
Access Controls: Limited access to educational content only
No Personal Data Storage: Google Sheets only stores educational content and leaderboard data (with User IDs)
Public Access: Educational content is publicly accessible for educational purposes

11.2 Content Delivery and Caching

Real-time Updates: Educational content is updated in real-time from Google Sheets
Offline Support: Content is cached locally for offline access
Performance Optimization: Multiple fallback methods ensure reliable content delivery
Data Validation: Content is validated before delivery to ensure quality

11.3 User Privacy in Content Delivery

Anonymous Access: Educational content can be accessed without personal identification
No User Tracking: Content delivery does not track individual user behavior
Public Resources: All educational materials are publicly available resources
Educational Purpose: Content is used solely for educational and learning purposes

12. User ID System and Leaderboard Privacy

12.1 Unique User Identification

Our app uses a sophisticated User ID system to ensure fair competition and data integrity:

User ID Generation:

Timestamp-based: Each user receives a unique USER_timestamp identifier
Automatic Assignment: User IDs are generated automatically upon first profile creation
Permanent Assignment: User IDs remain constant throughout the user's app usage
No Personal Information: User IDs contain no personally identifiable information

Privacy Benefits:

Name Collision Prevention: Multiple users with same name can participate separately
Duplicate Submission Prevention: Same user cannot submit same test multiple times
Fair Competition: Ensures accurate ranking regardless of name similarities
Data Integrity: Maintains consistent user identification across all features

12.2 Leaderboard Data Management

Public Display: User names and scores are displayed publicly in leaderboards
User ID Usage: User IDs are used internally for system operations and duplicate detection
Anonymous Ranking: Rankings are calculated using User IDs, not names
Competition Fairness: System ensures fair competition for all users

12.3 Data Visibility Controls

User Choice: Users can choose to participate in leaderboards or remain private
Profile Settings: Users can control what information is displayed publicly
Data Export: Users can export their own data and performance history
Privacy Options: Flexible privacy settings for competitive features

13. Changes to This Privacy Policy

13.1 Updates

We may update this Privacy Policy from time to time. We will notify you of any material changes by:

In-App Notification: Posting a notice in the app
Email: Sending an email to registered users
Website: Updating the policy on our website

13.2 Continued Use

Your continued use of the app after changes become effective constitutes acceptance of the updated Privacy Policy.

14. Contact Information

14.1 Questions and Concerns

If you have any questions about this Privacy Policy or our data practices, please contact us:

Email: abacusacademymail@gmail.com
Address: West Bengal, Bankura

14.2 Data Protection Officer

For data protection inquiries, you can also contact our Data Protection Officer at: abacusacademymail@gmail.com
Note: Please include "DPO Inquiry" in your email subject line for faster processing.

15. Legal Basis for Processing (EU Users)

15.1 Legal Grounds

For users in the European Union, we process your data based on:

Consent: When you explicitly agree to data processing
Contract: To provide our educational services
Legitimate Interest: To improve our app and services
Legal Obligation: To comply with applicable laws

15.2 EU Rights

EU users have additional rights under the General Data Protection Regulation (GDPR), including the right to lodge a complaint with a supervisory authority.

16. California Privacy Rights (CCPA)

16.1 California Residents

California residents have additional rights under the California Consumer Privacy Act (CCPA):

Disclosure: Right to know what personal information is collected
Deletion: Right to request deletion of personal information
Opt-Out: Right to opt out of the sale of personal information
Non-Discrimination: Right to not be discriminated against for exercising privacy rights

16.2 Contact

California residents can exercise these rights by contacting us at: abacusacademymail@gmail.com

17. Data Processing for Educational Purposes

17.1 Mathematical Expression Processing

Our app processes mathematical expressions and LaTeX commands to provide enhanced educational content:

LaTeX Commands Supported:

Fractions: \frac{a}{b} processing for mathematical notation
Greek Letters: Support for α, β, γ, δ, ε, θ, π, σ, ω, λ, μ, ν, ξ, ρ, τ, φ, χ, ψ
Mathematical Operators: ×, ·, ∘, √, ^, _, ≤, ≥, ≠, ≈, ∞
Vector Notation: Vector arrows and mathematical accents
Mathematical Expressions: Complex formulas and equations

Data Processing for Mathematical Content:

Expression Parsing: Analysis of LaTeX syntax and mathematical notation
Symbol Rendering: Conversion of mathematical commands to display symbols
Content Delivery: Dynamic serving of mathematical content and study materials
User Interaction: Tracking of mathematical problem-solving and progress

17.2 Learning Analytics

We collect and process educational data to:

Track Progress: Monitor your learning journey and subject mastery
Personalize Content: Provide tailored educational experiences
Improve Services: Enhance content quality and learning outcomes
Generate Reports: Create detailed progress reports and analytics

17.3 Content Generation

PDF Creation: Generate downloadable study materials and test results
AI Assistance: Provide intelligent tutoring and educational support
Dynamic Content: Serve syllabus and study materials from cloud sources

17.4 Performance Optimization

App Stability: Monitor and improve app performance
User Experience: Enhance app usability and feature development
Technical Support: Provide effective customer support and troubleshooting

17.5 Mathematical Content Processing

LaTeX Rendering: Processing and rendering of mathematical expressions
Symbol Support: Handling of Greek letters, mathematical operators, and special notation
Content Delivery: Dynamic loading of mathematical content and study materials
User Progress: Tracking of mathematical problem-solving progress and performance

17.6 User Experience and Accessibility

Profile Management: Extended time limits for user profile completion (120 seconds)
Content Organization: Exam-wise and subject-wise content filtering and organization
Responsive Design: Adaptive layouts for different screen sizes and devices
Accessibility Features: Support for various font types and mathematical notation rendering

18. Recent App Updates and Features

18.1 User ID Only Ranking System

Our app has been completely overhauled with a sophisticated User ID-based ranking system:

Key Features:

Unique User Identification: Each user receives a unique USER_timestamp identifier
Duplicate Prevention: Smart detection using User ID + Mock Test ID only
Fair Competition: Prevents name collision issues in leaderboards
Data Integrity: Consistent user identification across all features

Privacy Benefits:

Name Collision Handling: Multiple users with same name can participate separately
Accurate Rankings: Ensures fair competition regardless of name similarities
User Privacy: User IDs contain no personally identifiable information
Competition Fairness: Maintains integrity of competitive features

18.2 Enhanced User Management

Our app now includes comprehensive user management capabilities:

Profile Management:

Mandatory Registration: Required profile setup on first app launch
Data Collection: Name, country, state, and district information
Unique ID Generation: Automatic User ID assignment for system operations
Profile Editing: Users can update and modify their profile information

Data Export and Control:

CSV Export: Users can download their data and performance history
Data Portability: Easy transfer of user data in standard format
Privacy Controls: Users have full control over their data and visibility
Account Deletion: Complete removal of user account and associated data

18.3 Advanced Leaderboard System

Our leaderboard system has been significantly enhanced:

Global Rankings:

Overall Performance: Rankings across all subjects and tests
User ID Filtering: Accurate user identification for ranking calculations
Real-time Updates: Live leaderboard data from Google Sheets
Performance Analytics: Comprehensive user performance tracking

Topic-wise Rankings:

Subject-specific Leaderboards: Rankings for individual subjects and topics
Location Filtering: Filter by country, state, and district
Competition Categories: Different ranking categories for various exam types
User Positioning: Current user rank with scroll-to-position functionality

18.4 Enhanced Google Sheets Integration

Our app has been significantly improved with robust Google Sheets integration:

Multiple Data Fetching Methods:

Direct Google Sheets API: Fastest method using official Google Sheets API
Google Apps Script Fallback: Reliable fallback using Google Apps Script
CSV Export Method: Public sheet access for educational content
Local Sample Data: Offline fallback for uninterrupted learning

Improved Data Reliability:

Retry Logic: Automatic retry with exponential backoff for failed requests
Error Handling: Comprehensive error handling and user-friendly error messages
Offline Support: 24-hour caching for offline access to educational content
Performance Optimization: Multiple fallback methods ensure content availability
Background Fetching: Continuous MCQ data updates when using sample data

18.5 Enhanced Mathematical Support

Our app has been updated with comprehensive mathematical expression rendering capabilities:

New Mathematical Features:

Extended LaTeX Support: Enhanced processing of mathematical expressions and notation
Greek Letter Support: Full support for mathematical Greek letters and symbols
Fraction Processing: Advanced fraction rendering with nested fraction support
Mathematical Operators: Comprehensive support for mathematical operators and symbols
Vector Notation: Enhanced vector and arrow symbol support

User Experience Improvements:

Extended Profile Time: Increased timeout for user profile completion from 30 to 120 seconds
Content Organization: Improved exam-wise and subject-wise content filtering
Responsive Design: Enhanced layouts for various screen sizes and devices
Performance Optimization: Improved app stability and mathematical content rendering

18.6 Data Processing Updates

With these new features, we may collect additional data related to:

User ID Usage: Patterns in unique identifier system usage
Leaderboard Participation: User engagement with competitive features
Mathematical Expression Usage: Patterns in mathematical content consumption
Feature Interaction: Usage of new user management and ranking capabilities
Performance Metrics: Enhanced tracking of mathematical content delivery
User Preferences: Mathematical notation preferences and usage patterns

18.7 User Experience Enhancements

Recent updates include significant improvements to user experience and accessibility:

Profile Management Improvements:

Extended Timeout: Increased profile completion timeout from 30 seconds to 120 seconds
Better User Support: More time for users to complete their profile information
Reduced Time Pressure: Less stress during initial app setup and profile creation

Content Organization Features:

Exam-Wise Filtering: Content organized by specific exam categories (SLST, SSC, GATE, NET, EMRS, PSC, SET, JECA, PGATE, KVS)
Subject-Wise Organization: Improved subject categorization and filtering
Dynamic Content Delivery: Real-time content updates and organization

Mathematical Content Rendering:

Enhanced LaTeX Support: Improved processing of complex mathematical expressions
Symbol Rendering: Better support for mathematical symbols and notation
Performance Optimization: Faster rendering of mathematical content

18.2 Data Processing Updates

With these new features, we may collect additional data related to:

User ID Usage: Patterns in unique identifier system usage
Leaderboard Participation: User engagement with competitive features
Mathematical Expression Usage: Patterns in mathematical content consumption
Feature Interaction: Usage of new user management and ranking capabilities
Performance Metrics: Enhanced tracking of mathematical content delivery
User Preferences: Mathematical notation preferences and usage patterns

18.4 User Experience Enhancements

Recent updates include significant improvements to user experience and accessibility:

Profile Management Improvements:

Extended Timeout: Increased profile completion timeout from 30 seconds to 120 seconds
Better User Support: More time for users to complete their profile information
Reduced Time Pressure: Less stress during initial app setup and profile creation

Content Organization Features:

Exam-Wise Filtering: Content organized by specific exam categories (SLST, SSC, GATE, NET, EMRS, PSC, SET, JECA, PGATE, KVS)
Subject-Wise Organization: Improved subject categorization and filtering
Dynamic Content Delivery: Real-time content updates and organization

Mathematical Content Rendering:

Enhanced LaTeX Support: Improved processing of complex mathematical expressions
Symbol Rendering: Better support for mathematical symbols and notation
Performance Optimization: Faster rendering of mathematical content

18.5 Latest App Updates (Version 1.0.4)

Our latest update brings significant improvements to app functionality and user experience:

User ID System Implementation:

Unique Identification: Complete overhaul to User ID-based system
Duplicate Prevention: Smart detection using User ID + Mock Test ID
Fair Competition: Prevents name collision issues in leaderboards
Data Integrity: Consistent user identification across all features

Enhanced Leaderboards:

Global Rankings: Overall performance across all subjects
Topic-wise Rankings: Subject-specific leaderboards with filtering
Location Filtering: Filter by country, state, and district
User Positioning: Current user rank with scroll-to-position

User Management Features:

Mandatory Registration: Required profile setup on first launch
Profile Management: View, edit, and export user information
CSV Export: Download user data and performance history
Data Privacy: Full control over personal data and deletion

Background Data Fetching:

Continuous Updates: MCQ data updates when using sample data
Multiple Fallback Methods: Robust data fetching with multiple mechanisms
Enhanced Error Handling: Better error messages and retry logic
Offline Support: 24-hour caching for uninterrupted learning

Mock Test ID Management:

Clean IDs: Removes timestamps and bracket content for display
Internal Tracking: Maintains full IDs for system operations
Sheet Integration: Clean IDs stored in Google Sheets leaderboard

Effective Date: 21th August 2025
Version: 5
App Version: 1.0.4

21. Recent Updates and Android 15 Compatibility (December 2024)

21.1 Android 15 Edge-to-Edge Implementation

Our app has been updated for full Android 15 compatibility with modern edge-to-edge display support:

Technical Improvements:

Modern APIs: Migrated from deprecated system UI visibility flags to modern AndroidX APIs
Edge-to-Edge Display: Implemented proper edge-to-edge support for Android 15
WindowInsets Controller: Uses modern window insets management for system bars
Backward Compatibility: Maintains compatibility with Android 6.0+ while supporting latest features

Privacy Implications:

Display Data: App may collect display preferences and system UI interaction data
Performance Metrics: Enhanced monitoring of display performance and user experience
System Integration: Improved integration with Android system services for optimal display
Device Compatibility: Better adaptation to various screen types, notches, and foldable devices

21.2 Enhanced Security and Privacy

Security Improvements:

Modern Authentication: Updated authentication mechanisms for better security
Data Encryption: Enhanced data encryption standards for user information
API Security: Improved security for third-party service integrations
Privacy Controls: Enhanced user controls for data visibility and sharing

User Control Features:

Profile Management: Improved user profile management and data export capabilities
Privacy Settings: Enhanced privacy controls for leaderboard participation
Data Portability: Improved CSV export functionality for user data
Account Deletion: Streamlined process for complete account and data deletion

21.3 Performance and User Experience

App Performance:

Launch Time: Optimized app launch performance (maintained under 3 seconds)
Memory Management: Improved memory usage and resource optimization
Battery Efficiency: Enhanced battery optimization for background processes
Network Optimization: Better handling of network connectivity and offline functionality

User Interface:

Immersive Experience: Enhanced full-screen immersive experience
Responsive Design: Improved responsiveness across different screen sizes
Accessibility: Better accessibility support for users with disabilities
Theme Consistency: Maintained premium dark theme with improved visual consistency

21.4 Data Processing Updates

Enhanced Data Collection:

Display Metrics: Collection of display-related metrics for optimization
User Interaction Patterns: Enhanced tracking of user interaction with new features
Performance Analytics: Improved performance monitoring and analytics collection
Error Reporting: Better error tracking and crash reporting for improved stability

Data Usage Transparency:

Clear Purpose: All data collection serves specific purposes outlined in this policy
User Benefit: Data processing aimed at improving user experience and app functionality
Minimal Collection: Only necessary data is collected for stated purposes
Secure Processing: All data processing follows industry-standard security practices

21.5 Compliance and Standards

Regulatory Compliance:

Google Play Policies: Full compliance with latest Google Play Store requirements
Android 15 Standards: Adherence to Android 15 compatibility and privacy standards
International Privacy Laws: Continued compliance with GDPR, CCPA, and other regulations
Educational Data Protection: Enhanced protection for educational and learning data

Quality Assurance:

Testing Standards: Comprehensive testing across Android versions and devices
Performance Validation: Regular performance monitoring and optimization
Security Audits: Ongoing security reviews and vulnerability assessments
User Feedback: Continuous improvement based on user feedback and usage patterns

22. Future-Proofing and Continuous Improvement

22.1 Technology Evolution

Android Updates: Proactive preparation for future Android versions
API Modernization: Continuous migration to modern, supported APIs
Performance Optimization: Ongoing performance improvements and optimizations
Security Enhancement: Regular security updates and improvements

22.2 Privacy Evolution

Regulatory Changes: Adaptation to evolving privacy regulations worldwide
User Expectations: Meeting changing user expectations for privacy and control
Transparency Improvements: Enhanced transparency in data collection and usage
Control Enhancement: Continuous improvement of user control features

22.3 User Experience Focus

Accessibility Improvements: Ongoing enhancements for accessibility and inclusivity
Performance Optimization: Continuous optimization for better user experience
Feature Enhancement: Regular addition of new features based on user needs
Quality Maintenance: Maintaining high standards of app quality and reliability

Effective Date: September 2, 2025
Version: 6
App Version: 1.0.5

19. Data Retention and Deletion

19.1 Data Retention Periods

User Account Data: Retained while account is active, deleted upon account closure
User ID Data: Retained for competition integrity and duplicate prevention
Educational Progress: Retained for 2 years after last activity
App Usage Analytics: Retained for 1 year for service improvement
Generated Content: PDFs and study materials stored locally, user-controlled deletion
Leaderboard Data: Historical ranking data may be retained for competition integrity

19.2 Data Deletion Options

Account Deletion: Complete removal of user account and associated data
Content Deletion: Removal of specific content or progress data
Local Data: User can clear app cache and local storage at any time
Third-Party Data: Requests for deletion from third-party services
Leaderboard Data: Users can request removal from public leaderboards

19.3 Backup and Recovery

Educational Content: Backed up in Google Sheets for service continuity
User Data: Local backups may be retained for limited periods
Recovery Options: Users can restore data within retention periods
Permanent Deletion: Irreversible deletion after retention period expires

20. User ID System and Competition Privacy

20.1 Competition Participation

Voluntary Participation: Users can choose to participate in leaderboards or remain private
Public Display: Participating users' names and scores are displayed publicly
User ID Protection: User IDs are used internally and not displayed publicly
Fair Competition: System ensures fair competition regardless of name similarities

20.2 Data Visibility Controls

Profile Settings: Users can control what information is displayed publicly
Competition Preferences: Users can adjust their competitive feature settings
Privacy Options: Flexible privacy settings for leaderboard participation
Data Export: Users can export their own data and performance history

20.3 Competition Integrity

Duplicate Prevention: User ID system prevents same user from submitting same test multiple times
Fair Rankings: Accurate ranking calculations using unique identifiers
Name Collision Handling: Multiple users with same name can participate separately
Data Consistency: Maintains integrity of competitive data and rankings

Key Innovation: User ID Only Ranking System ensures fair and accurate competition for all users, regardless of name collisions, while maintaining user privacy and data integrity. Now featuring Android 15 compatibility with modern edge-to-edge display support.