Privacy policy

Sound never leaves your device

Decibelwerk reads the microphone to calculate a sound level. The audio itself is processed in memory and thrown away; it is never recorded, saved or sent anywhere. We do not operate a server that receives audio or measurements.

Noise logs

When you start a noise log, the app saves only numbers: the level once a second, the start time and any label you type. Logs are stored in the app's own storage on your iPhone. PDF reports are created on the device and shared only if you choose to.

Microphone

The microphone is used only while the meter is on screen or a log is running. You can turn access off at any time in Settings.

No account

The app has no sign-up and no login. We don't collect your name, email or phone number.

Purchases

Payments are handled entirely by Apple through the App Store. We receive no payment details. Apple shares anonymized sales reports with us.

Diagnostics

If you've opted in to share analytics with app developers in iOS Settings, Apple may provide us aggregated, anonymous crash and usage data.

This website

This site doesn't use advertising cookies. The free tools run in your browser and don't send anything to us.

If enabled, we use PostHog to count anonymous page views, scroll depth, clicks on App Store buttons and page speed, so we can improve our guides. It's configured without cookies or persistent identifiers and doesn't record sessions. This applies to the website only; the app has no analytics.

Contact

Questions: info@decibelwerk.com