Sound Meter — iOS
listed on the App Store as Sound Meter: dB SPL Veltora
Last updated: 9 September 2026 · Operated by VELTORA LLC
We do not upload your microphone audio or measurements. Sound is analysed on your iPhone. Sessions, notes and optional recordings are stored there. If you choose to export a report or share a file, the app or recipient you select receives it.
The free version can show Google AdMob advertising. Google processes technical, advertising and diagnostic data described below. Advertising choices and Apple's tracking permission are separate controls. Refusing personalised advertising does not remove measurement features and does not necessarily stop all advertising-related data processing.
Premium removes advertising. Apple still handles purchases, and visiting this website or contacting support involves the services described below.
VELTORA LLC publishes Sound Meter and operates this website. Contact prosoundmeter@veltora.biz for privacy questions or requests. We are responsible for the processing we determine; Google and Apple also process data under their own policies and applicable roles.
There is no Sound Meter account or measurement backend. You can revoke microphone access in iOS Settings; sound measurement needs that permission. The app does not request precise location, contacts or photo-library access for measurement.
The free version uses Google Mobile Ads (AdMob) and Google's User Messaging Platform (UMP). Depending on your choices, age eligibility and the service used, they may process:
| Data category | Examples and purposes |
|---|---|
| Approximate location | IP address and general location derived from it; regional advertising, analytics and consent configuration. |
| Device identifiers | IDFA when Apple's tracking permission allows it, and SDK-related identifiers; advertising and analytics. Refusing ATT does not mean that all technical identifiers disappear. |
| Product interaction | App or consent interactions; advertising measurement, analytics and consent functionality. |
| Advertising data | Ads displayed and interactions with them; advertising and analytics. |
| Crash data | SDK crash information used for diagnostics and analytics. |
| Performance data | Timing, responsiveness or resource usage; advertising, analytics and consent functionality. |
| Other diagnostic data | Technical SDK information used for advertising and analytics. |
We do not send microphone audio, measurements, sessions, notes or precise location to the advertising service. First-party advertising identifiers are disabled in the app's AdMob configuration. Google may receive network information needed to deliver its services even when ads are not personalised.
See Google's business privacy information and how Google uses information from apps and sites. The consent form identifies participating partners and purposes where applicable.
The app obtains the applicable consent status using Google's consent platform before requesting ads. When a consent form is required, you can accept, refuse or manage individual choices. A prior valid choice may be reused; the same form need not appear on every launch. You can reopen available choices in Settings → Privacy → Ad privacy choices.
Refusing consent or withdrawing it keeps measurement features available. Depending on the resulting consent status and regional rules, Google may serve limited ads or the app may show no ads. Refusal is not a promise of zero network processing: consent handling, security and permitted limited advertising can still require technical data.
In supported US states, Settings → Privacy → Ad privacy choices (Do Not Sell or Share My Personal Information) opens Google's privacy-options form. Confirming opt-out communicates that choice to Google. The app also provides a local non-personalised advertising choice and applies restricted data processing when that fallback is used. These controls concern sale, sharing and targeted advertising as defined by applicable law; they do not remove all technical processing or necessarily remove ads.
The US opt-out form is available through the privacy control; it is not necessarily a first-launch popup. You can also contact us about applicable privacy rights.
The app explains advertising data use and offers advertising choices. Personalised advertising is requested only for an eligible adult when the relevant advertising consent permits it and App Tracking Transparency (ATT) is authorised. ATT alone does not replace regional consent. You can refuse tracking without losing features and change Apple's setting in iOS Settings → Privacy & Security → Tracking.
Non-personalised or limited advertising can still use technical information for delivery, measurement, fraud prevention and consent handling. The App Store privacy label describes potential collection in the advertising-supported app, including data used for tracking when authorised.
Sound Meter is a general-audience utility, not a service directed to children. Where required, the app checks Apple's age-related requirements and requests an available declared age range without asking for an exact birth date. A missing or unshared age range is never treated as proof that someone is an adult. When age is unknown, including on older supported iOS versions, the app may request restricted, non-personalised ads only when the regulatory check establishes that age information is not required and Google's consent platform permits ad requests. This mode does not request Apple's tracking permission; it applies protective under-age advertising treatment, general-audience ad content, restricted data processing and disabled advertising personalisation. If a mandatory age check fails or required age information is missing, ad requests remain blocked; measurement stays available. Known children and teenagers receive age-appropriate advertising restrictions. The app does not request personalised advertising for anyone known to be under 18 or whose age is unknown. An App Store age rating does not by itself verify a person's age.
Apple processes Premium purchases. We do not receive your card details. The app verifies purchase entitlement with Apple and stores entitlement state locally. Apple's privacy policy applies to its purchase services.
When Premium entitlement is recognised before advertising starts, the app does not start its advertising flow. Buying or restoring Premium after ads have already run removes ads and stops new ad requests; it does not erase data already processed or retroactively undo SDK activity in that session.
This website is delivered and protected through Cloudflare. Visiting it sends normal request information, such as IP address, requested URL and browser information, to the hosting and security services. Cloudflare may use security cookies or challenges to protect the site. See Cloudflare's privacy policy and its security-cookie documentation. Opening this website in your browser is separate from the app's measurement storage.
We use Cloudflare Web Analytics, including Real User Monitoring, to understand website visits and page performance. A script in your browser sends page-view and loading-performance measurements to Cloudflare. Reports include pages viewed, referring pages, broad country and browser or device type. This website analytics is separate from microphone audio and the app’s stored measurements; we do not connect it to your measurement history. See Cloudflare Web Analytics and its reporting dimensions.
If you email support, we and our email provider receive your address and the content and attachments you send, for answering the request. Please do not send recordings or sensitive information unless needed for your request.
Local app data remains until you delete it or remove the app. Exported files and backups are managed separately. Google, Apple, Cloudflare and email providers retain the data they process under their respective policies; VELTORA does not hold a separate server copy of your measurements. Support correspondence is kept only as needed to answer requests, resolve disputes and meet legal obligations.
These providers may process information outside your country, including in the United States. Their policies describe applicable safeguards and transfer arrangements. Where consent is required, it is the basis for the relevant advertising processing. Service delivery, security, support, purchases and legal obligations may rely on other applicable lawful grounds.
Depending on your location, you may have rights to access, correct, delete or obtain a copy of personal data, object to or restrict processing, withdraw consent, and opt out of sale, sharing or targeted advertising. Contact prosoundmeter@veltora.biz; we respond within applicable legal deadlines and may need to verify your request. You can complain to your local data-protection authority and contact us to appeal a decision where applicable. Exercising privacy rights does not remove measurement features.
Sound Meter provides an estimate, not a certified Type 1 or Type 2 measurement. Use certified equipment when required by a legal or safety standard.
We update this page when practices change. Material changes that require a new choice will be presented through the applicable in-app consent process.