🔒 Privacy Policy

Effective Date: January 2025

Last Updated: January 2025

1. Introduction

Welcome to FFTX ("we," "our," or "us"). This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you use our FFTX Spectrum Analyzer mobile application (the "App"). Please read this privacy policy carefully. If you do not agree with the terms of this privacy policy, please do not access the application.

2. Information We Collect

2.1 Audio Data

FFTX requires access to your device's microphone to perform real-time audio analysis. However:

• No Storage: Audio data is processed in real-time and is never stored on your device or transmitted to our servers
• Local Processing: All Fast Fourier Transform (FFT) calculations are performed locally on your device
• Temporary Use: Audio data exists only in your device's memory during active analysis sessions
• Recording Feature: When you use the optional recording feature, audio is stored locally on your device only and can be deleted at any time

2.2 Device Information

We may automatically collect certain information about your device, including:

• Device model and operating system version
• App version and usage statistics
• Crash reports and performance data (anonymized)

2.3 Information We Do NOT Collect

• Personal identification information
• Audio recordings or voice data
• Location data
• Contact information
• Social media profiles

3. How We Use Your Information

The limited information we collect is used solely for:

• App Functionality: Providing real-time audio spectrum analysis
• Performance Improvement: Identifying and fixing bugs or crashes
• Feature Enhancement: Understanding which features are most useful to users
• Technical Support: Helping users troubleshoot issues

4. Permissions Required

4.1 Microphone Access

Purpose: Essential for audio spectrum analysis functionality

Usage: Real-time audio processing only, no recording or storage unless explicitly requested by user

Control: You can revoke this permission at any time through your device settings

4.2 Storage Access (Optional)

Purpose: Saving exported analysis data or recorded audio files

Usage: Only when you choose to export data or save recordings

Control: Fully optional and user-controlled

5. Data Sharing and Disclosure

We do not sell, trade, or otherwise transfer your information to third parties. This includes:

• No sharing with advertisers
• No sharing with data brokers
• No sharing with social media platforms
• No sharing with analytics companies beyond basic app performance metrics

5.1 Legal Requirements

We may disclose information if required by law or in response to valid legal processes, but given that we collect minimal data, such disclosures would be extremely limited.

6. Data Security

We implement appropriate security measures to protect your information:

• Local Processing: All audio analysis happens on your device
• No Cloud Storage: No audio data is transmitted to external servers
• Minimal Data Collection: We collect only what's necessary for app functionality
• Regular Updates: We regularly update our security practices

7. Children's Privacy

FFTX is suitable for users of all ages. We do not knowingly collect personal information from children under 13. The app's educational nature makes it appropriate for classroom and educational use under adult supervision.

8. Your Rights and Choices

You have the following rights regarding your information:

• Access: Request information about data we may have collected
• Deletion: Request deletion of any stored data (though we store minimal data)
• Correction: Request correction of any inaccurate information
• Portability: Request a copy of your data in a portable format
• Withdrawal: Revoke permissions at any time through device settings

9. Third-Party Services

FFTX may use the following third-party services:

• Google Play Services: For app distribution and basic analytics
• Crash Reporting: Anonymous crash reports to improve app stability

These services have their own privacy policies, and we encourage you to review them.

10. International Users

FFTX is available worldwide. If you are using the app from outside your country of residence, please note that any information processed will be handled in accordance with this privacy policy and applicable local laws.

11. Changes to This Privacy Policy

We may update this privacy policy from time to time. We will notify you of any changes by:

• Posting the new privacy policy in the app
• Updating the "Last Updated" date
• Providing in-app notifications for significant changes

Your continued use of the app after any modifications indicates your acceptance of the updated privacy policy.

12. Contact Information

13. Compliance

This privacy policy is designed to comply with:

• GDPR: General Data Protection Regulation (EU)
• CCPA: California Consumer Privacy Act (US)
• COPPA: Children's Online Privacy Protection Act (US)
• Google Play: Google Play Developer Policy
• Apple App Store: App Store Review Guidelines