Privacy policy: Sound Meter
Sound Meter has no user accounts. What you create in the app stays on your phone unless you choose to share it. The app is free and shows ads through Google AdMob; a one-time purchase removes them. We do not sell personal data.
Who is responsible
The controller of personal data for Sound Meter is:
- Business name
- [Full legal name of the sole proprietorship]
- Address
- [Street and number], [Postal code] [City], Poland
- Tax ID (NIP)
- [0000000000]
- [email protected]
What the app processes
Microphone
The app needs the microphone to measure sound levels. The sound is analysed live on your phone to compute decibel values. Audio is never recorded, stored or sent anywhere.
Measurement sessions
Saved sessions (decibel values over time, date, duration and settings) are stored only on your phone. CSV files, graph images and PDF reports are created on your phone and leave it only when you share them. A PDF report includes your phone's model name and your calibration offset.
Permissions are optional: the app asks only when you use a feature that needs them, explains why, and keeps working if you say no.
Ads, purchases and Google services
Advertising (Google AdMob)
The app shows ads from Google AdMob. To show and measure ads, Google processes your device's advertising ID, IP address, device and app information and how you interact with ads. In the European Economic Area, the UK and Switzerland we ask for your consent through Google's consent form before any personalised ads are shown; without consent, Google shows only non-personalised or limited ads. You can change your choice at any time in the app: Settings → Privacy options. You can also reset or delete your advertising ID in Android settings. Google's use of this data is described at policies.google.com/technologies/partner-sites. Some features can be unlocked by choosing to watch a video ad; a video only plays after you tap to watch it.
Purchases (Google Play)
The “Remove ads” purchase is processed by Google Play. We never see your payment details. Google gives us the order number, product, date, country and price, which we keep as long as Polish tax law requires (usually 5 years).
Ratings
The app may occasionally show Google Play's rating prompt. Your rating and review go to Google Play, not to us.
Backups
If Android backup is turned on, Android may back up the app's settings and saved data to your Google account. This is controlled by you in Android settings.
What we do not do
No accounts, no selling of personal data, and no analytics or crash reports sent to us from the app.
Your rights and legal details
Legal bases
Personalised ads: your consent (GDPR Art. 6(1)(a)). Purchases: performance of the contract (Art. 6(1)(b)) and our tax obligations (Art. 6(1)(c)). Non-personalised ads that fund the free app, and security of our services: our legitimate interest (Art. 6(1)(f)).
Who receives data
Google (Google Ireland Ltd. and Google LLC) for ads, consent, purchases and ratings. Transfers outside the EEA are covered by the EU–US Data Privacy Framework or the European Commission's standard contractual clauses.
Your rights
You can ask us for access to, correction or deletion of your data, restriction of processing, data portability, and you can object to processing based on legitimate interest. You can withdraw consent at any time (Settings → Privacy options) without affecting earlier processing. Most data exists only on your phone: uninstalling the app deletes it. You can also complain to the Polish data protection authority: Prezes Urzędu Ochrony Danych Osobowych, ul. Stawki 2, 00-193 Warszawa, uodo.gov.pl.
Children
The app is not directed at children under 13, and we do not knowingly collect their data.
Changes
If this policy changes, we will update this page and the date below.
Last updated: 2026-09-29