DecibelGuard

DecibelGuard — Privacy Policy

Last updated: May 2026

DecibelGuard measures ambient noise levels in real time using your device’s microphone. That’s it.

Nothing that leaves your device.

Noise readings (decibel levels + timestamps) are stored locally in a database on your device.
No audio is ever recorded. The microphone is used only to calculate a noise level number. Raw audio is processed in memory and immediately discarded.
No personal data is collected — no name, no email, no location, no device identifiers.
No analytics, no crash reporting, no advertising SDKs.

All data stays on your device. DecibelGuard has no servers, no cloud storage, and no internet connection. Your noise history never leaves your phone.

Open DecibelGuard → Settings → Clear History. This permanently deletes all stored readings from your device.

Uninstalling the app also removes all data.

Microphone (RECORD_AUDIO) — required to measure noise levels. Without this permission the app cannot function.
Notifications (POST_NOTIFICATIONS) — optional. Used only to alert you when noise exceeds your configured threshold.

DecibelGuard does not share any data with third parties. There are no third-party SDKs that collect data.

DecibelGuard does not knowingly collect data from children under 13. The app collects no personal data from anyone.

If this policy changes, the updated version will be posted at this URL with a new date.

Questions? Reach us at: marcodomingues.dev@gmail.com

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