Privacy policy

Last updated: 10 November 2026

This page covers the dblevel.app website. The Decibel Meter app has its own full privacy policy at appositelabs.co.uk, summarised below. Both are run by Apposite Labs Ltd (company number 17153038), which is the data controller.

This website

dblevel.app is a static information site. It has no accounts, no forms, no analytics and no advertising or tracking cookies.

• Online decibel meter: if you use it, your browser asks for microphone permission. Audio is analysed in your browser and discarded immediately. It is never recorded or sent to us or anyone else.
• Local storage: your browser remembers if you close the "get the app" prompt, your online-meter calibration offset and the activities you enter in the noise calculator. These stay on your device and you can clear them in your browser settings.
• Hosting: Cloudflare serves the site and processes standard request data such as IP addresses to deliver and protect it.

The Decibel Meter app, in short

• Audio is processed on your phone to calculate sound levels and immediately discarded. It's never recorded, saved or uploaded.
• No account and no sign-up. Saved measurements contain numbers only and stay on your device.
• The app is free and shows ads from Google AdMob. In the UK, EEA, Switzerland and some US states you're asked for your choices before personalised ads are shown, and you can change them in the app's settings.
• Crash reports go to Sentry so we can fix bugs. They contain technical details, not audio or measurements.

Your rights

You can ask for access to, correction of or deletion of your data, or object to its processing, by emailing [email protected]. You can also complain to the Information Commissioner's Office (ico.org.uk).