Privacy Policy

Developer Information

Fretio is developed by Fengming Zhong. This Privacy Policy describes how we handle information when you use our guitar learning and practice application.

Our Commitment to Privacy

Fretio is designed with privacy in mind. Practice data, learning progress, and core audio processing stay on your device. The app does not require an account and does not send core practice data to external servers.

Information We Do NOT Collect

We want to be clear about what we don't collect:

• No Personal Information: We do not collect names, email addresses, phone numbers, or any personal identifiers
• No Audio Recording: Your guitar playing is processed in real-time for note detection but is never recorded or stored
• No Location Data: We do not access or collect your location information
• No Account Required: You can use all app features without creating an account or providing any personal information

Data Stored Locally on Your Device

The following information is stored locally on your device and never leaves your device:

• Practice Progress: Your learning progress, practice session history, and performance statistics
• Settings and Preferences: Your app configuration, audio sensitivity settings, and interface preferences
• Learning Presets: Custom practice configurations and saved presets you create
• Achievement Data: Your milestones, streak counters, and progress tracking

Audio Processing

Fretio uses your device's microphone to detect guitar notes and provide real-time feedback:

• Real-Time Processing: Audio is analyzed instantly on your device for note recognition
• No Recording: Audio data is never recorded, saved, or transmitted anywhere
• Local Analysis: All audio processing happens locally using your device's processing power
• Optional Feature: You can use the app without microphone access, though audio features won't work

App Permissions

Fretio requests minimal permissions:

• Microphone Access: Required for guitar tuning and note detection features. This permission is optional - you can deny it and still use the visual practice features
• Local Storage: To save your practice progress and app preferences on your device

No Third-Party Data Sharing

We do not share, sell, or transmit any of your data to third parties. Since core data remains on your device, there is nothing to share. We do not use advertising networks, and the public App Store listing currently states that Fretio collects no data.

Data Security

Your data security is important to us:

• Local Storage Only: All your data stays on your device using iOS's secure storage mechanisms
• No Cloud Sync: We don't offer cloud synchronization, ensuring your data never leaves your device
• iOS Security: Your data benefits from iOS's built-in security features and sandboxing

Your Control Over Data

You have complete control over your data:

• View Your Data: All your practice data is visible within the app's progress and settings sections
• Delete Individual Data: You can delete specific practice sessions or progress data within the app
• Reset All Data: Use the "Reset Progress" feature in settings to clear all practice data
• Complete Removal: Uninstalling the app removes all associated data from your device

Children's Privacy

Fretio is safe for users of all ages, including children under 13. Since we don't collect any personal information, there are no privacy concerns related to children's data. Parents can feel confident letting their children use Fretio to learn guitar.

Updates to This Policy

If we make changes to this Privacy Policy, we will:

• Update this page with the new information
• Change the "Last Updated" date at the top
• For significant changes, provide notification within the app

Contact Information

If you have questions about this Privacy Policy or Fretio's privacy practices, you can contact us at:

• Email: fretio0719@gmail.com
• Response Time: We typically respond within 24-48 hours

Compliance

This Privacy Policy is designed to comply with:

• Apple App Store Review Guidelines
• General Data Protection Regulation (GDPR)
• California Consumer Privacy Act (CCPA)
• Children's Online Privacy Protection Act (COPPA)