Privacy Policy

Introduction

Thank you for using Noise Monitor ("we," "our," or "the App"). We are committed to protecting your privacy and ensuring you understand how your information is handled. This Privacy Policy explains our practices regarding data collection, use, and protection.

Information We Do NOT Collect

Noise Monitor does NOT collect, store, or transmit:

• Audio Recordings: We do not record, save, or transmit any audio content from your device's microphone
• Personal Information: We do not collect names, email addresses, phone numbers, or any personally identifiable information
• Location Data: We do not access or collect your geographic location
• Usage Analytics: We do not track how you use the app or send analytics data to external servers
• Device Information: We do not collect device identifiers, IP addresses, or hardware information

Information Stored Locally on Your Device

Noise Monitor stores the following information only on your device:

1. Measurement Data

• Decibel readings from your measurement sessions
• Session timestamps (start and end times)
• Calculated statistics (Leq, TWA, noise dose, peak levels)
• Measurement session notes or labels (if you add them)

2. App Settings

• Calibration offset values for your device
• Preferred weighting type (A, C, or Z)
• Selected safety standard (OSHA, NIOSH, or EU)
• App preferences and customization options

3. Temporary Audio Processing

• A temporary audio file is created during measurement sessions for metering purposes only
• This file is stored in your device's documents directory and contains no intelligible audio content
• The file is automatically deleted when you stop measuring or close the app
• This file never leaves your device

Microphone Access

Noise Monitor requires access to your device's microphone to measure sound levels. Here's how we use this permission:

• The microphone is accessed only when you actively start a measurement session
• Audio input is processed in real-time to calculate decibel levels
• No audio content is recorded, saved, or transmitted anywhere
• You can revoke microphone permission at any time in your device Settings
• The app will request permission before first use and will not function without it

Data Storage and Security

All measurement data and settings are stored locally on your device using:

• SwiftData: Apple's secure, on-device data persistence framework
• UserDefaults: For app preferences and calibration settings
• Local File System: For temporary audio processing files (automatically deleted)

Your data is protected by:

• iOS/iPadOS device encryption when your device is locked
• Your device passcode, Face ID, or Touch ID
• iOS security sandbox that prevents other apps from accessing Noise Monitor's data

Data Sharing and Third Parties

Noise Monitor does NOT:

• Share any data with third parties
• Use third-party analytics services
• Include third-party advertising networks
• Transmit data to our servers (we don't have any servers collecting your data)
• Sell or rent your information to anyone

iCloud and Device Backups

If you have iCloud Backup enabled on your device, your Noise Monitor data may be included in your device backups:

• Measurement history and sessions may be backed up to your personal iCloud account
• App settings and calibration data may be backed up
• Backups are encrypted and accessible only to you with your Apple ID
• We have no access to your iCloud backups
• You can manage backup settings in your device Settings under iCloud

Data Export

Noise Monitor may offer features to export your measurement data:

• Exports are initiated only by you
• Exported files remain under your control
• We do not receive copies of exported data

Children's Privacy

Noise Monitor does not knowingly collect any information from anyone. The app is suitable for users of all ages because it operates entirely on-device without any data collection or transmission.

Your Rights and Controls

You have complete control over your data:

• Delete Measurements: You can delete individual measurements or entire sessions within the app
• Reset Calibration: You can reset device calibration settings at any time
• Revoke Permissions: You can revoke microphone access in iOS Settings (the app will not function without it)
• Delete All Data: Uninstalling the app removes all locally stored data from your device

Changes to This Privacy Policy

We may update this Privacy Policy from time to time to reflect changes in:

• App features and functionality
• Legal requirements
• Industry best practices

When we make changes, we will:

• Update the "Last Updated" date at the top of this policy
• Notify you through the app or App Store update notes if changes are significant
• Post the updated policy on this page

In-App Purchases

Noise Monitor may offer optional in-app purchases for additional features:

• Purchases are processed through Apple's App Store
• We do not collect or store payment information
• Apple's privacy policy governs purchase data
• Purchase history is managed through your Apple ID

Contact Us

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

We will respond to your inquiry as soon as possible, typically within 48 hours.

Compliance

This Privacy Policy is designed to comply with:

• California Consumer Privacy Act (CCPA)
• General Data Protection Regulation (GDPR)
• Apple App Store Privacy Guidelines
• Other applicable privacy laws and regulations