Welcome to Decibel Meter - Sound Detector (Package ID: com.actorastudio.soundmeter), developed and operated by Actora Studio ("we," "our," or "the Application"). We are committed to protecting your privacy and ensuring complete transparency regarding how data is handled. This Privacy Policy explains our data collection, processing, and protection practices in compliance with Google Play Developer Program Policies, the General Data Protection Regulation (GDPR), and the California Consumer Privacy Act (CCPA).
1. Core Privacy Principle: 100% On-Device Audio Processing
Your acoustic privacy is our highest priority:
- No Audio Recording or Storage: The Application accesses your device's microphone sensor solely to measure ambient sound pressure levels (SPL) in real time.
- Volatile In-Memory Analysis Only: Incoming audio samples are converted directly into mathematical amplitude/decibel values (dB / dBFS) inside volatile device memory (RAM).
- Zero Transmission to Remote Servers: Audio waveforms, raw microphone recordings, conversations, or acoustic signals are NEVER saved to permanent disk storage, NEVER recorded into audio files, and NEVER transmitted across the internet to our servers or any third party.
- Instant Disposal: Audio buffers are overwritten and cleared continuously every few milliseconds.
2. Device Permissions & Purpose
The Application requests the following permissions strictly necessary for its functionality:
| Permission | Platform | Explicit Purpose |
|---|---|---|
| android.permission.RECORD_AUDIO | Android | Required strictly for the real-time acoustic sound meter engine to calculate decibel values. Audio is never saved or uploaded. |
| NSMicrophoneUsageDescription | iOS | Required for real-time ambient noise metering. |
| android.permission.ACCESS_NETWORK_STATE | Android | Required to verify network availability for serving AdMob ads and validating in-app purchase receipts. |
| android.permission.INTERNET | Android | Required to load advertisements (Google AdMob) and retrieve in-app purchase product listings. |
3. Data Collection by Third-Party SDKs
While the Application itself collects zero personal identification data, third-party SDKs integrated into the app may collect information in accordance with their respective privacy policies:
A. Google AdMob (Mobile Advertising)
The free version of the Application displays advertisements supplied by Google AdMob. Google may collect and process IP address, coarse device location, device identifiers (such as Google Advertising ID / AAID or Apple IDFA), diagnostic data, ad performance metrics, and interaction events. For users in jurisdictions requiring consent (e.g., EEA/UK), consent is requested before serving personalized advertisements. You can opt out at any time via your device settings (Google Settings > Ads > Delete Advertising ID).
B. In-App Purchases (Google Play Billing / RevenueCat)
When purchasing Decibel Meter Pro, all financial transactions and payment credentials are processed exclusively and securely by Google Play In-App Billing. Actora Studio never has access to your credit card numbers, bank details, or billing address. Anonymous purchase tokens may be used to unlock Pro features on your device.
4. Local Data Storage (On-Device)
The Application uses secure local device storage (such as Android SharedPreferences / AsyncStorage) solely to remember your user preferences:
- Selected frequency weighting (
AorC). - Selected time response speed (
FASTorSLOW). - Saved microphone calibration offset value.
- Pro membership activation status.
This information never leaves your device and is permanently deleted when you uninstall the Application or clear app storage in your device settings.
5. Children's Privacy (COPPA & GDPR-K Compliance)
The Application is not directed to children under the age of 13 (or 16 in the European Union). We do not knowingly collect personal information from children. If you believe that a child has provided us with personal information, please contact us so we can take appropriate action.
6. Security Standards
We employ industry-standard security measures to safeguard all processes within the Application. Because no personal data or audio recordings are collected or transmitted to remote servers, there is no server-side database of user audio or identifiable profiles vulnerable to unauthorized external breaches.
7. Legal Disclaimer & Accuracy Notice
The Application is designed for educational, informational, and recreational reference purposes only. Built-in mobile device microphones are tuned primarily for human speech and lack certified laboratory calibration (ANSI / IEC Type 1 or Type 2 standards). The measurements generated must not be used in legal proceedings, occupational noise compliance audits (OSHA/HSE), or critical health assessments.
8. Updates to This Policy
We may update this Privacy Policy periodically to reflect changes in our legal obligations or application enhancements. Any revisions will be published with an updated "Last Updated" date. Your continued use of the Application signifies your acceptance of the revised terms.
9. Contact Us
If you have questions, feedback, or privacy-related concerns regarding this Privacy Policy or data handling practices, please contact us at:
Developer / Publisher: Actora Studio
Application Name: Decibel Meter - Sound Detector
Android Package Name: com.actorastudio.soundmeter
Contact Email: actora.studio@gmail.com