Sonir/Legal

Privacy Policy

Last updated 2026-06-14

Operator

Sonir (the “App”) is developed and operated by nadai, an independent developer. For matters regarding this policy and the handling of data, the responsible contact is sonir@nadai.dev. More about the developer is at nadai.dev.

Our basic policy

The App requires no account registration. Recordings, measurement data, gear profiles, and calibration files are all stored only on your device. The App operates no server for recording or measurement.

Information we do not collect

  • We do not send or store recorded audio or measurement data on our servers.
  • We do not ask for account registration using your name, email address, or similar.
  • We do not collect location data.
  • We do not embed proprietary usage analytics or advertising mechanisms.

Information stored on your device

Recording files, measurement results, IRs, scores, gear profiles, room tags, and calibration files are all stored only on your device. You can manage and delete them yourself. Deleting the App also removes the associated data from your device.

Permissions

  • Microphone: used for recording and acoustic measurement. Captured audio is used only for on-device processing.
  • Camera: used only to scan QR codes that link a room you built in the web room simulator into the App. The camera image is processed on-device solely to decode the QR code; no photos or video are captured or stored.
  • USB / external audio devices: used for audio input/output when using an external mic.
  • Local network: used when you use the feature that sends a measurement signal to a compatible DLNA receiver (e.g., a network player). This stays within your local network and does not pass through our servers.

Sharing

Measurements, comparisons, and scores are generated as images and shared only to the destination you choose via the OS share sheet. Sharing does not go through our servers.

Billing

Sonir is completely free: no in-app purchases, no subscription, no ads. Because there is nothing to charge for and no subscription to manage, our use of the subscription-management service RevenueCat ended in August 2026 and it has been removed from the App. We run no payment or license server of our own either.

Crash reports

The App does not embed third-party crash analytics. If you have enabled OS-level diagnostic data sharing on your device, diagnostic information such as crashes may be sent to Apple / Google under their respective policies.

Data retention

Data on your device is retained until you delete it or uninstall the App. We hold no data of yours.

Your rights by region

If you reside in the EU or the UK, you have the right under the GDPR / UK GDPR to access, rectify, erase, restrict the processing of, and object to the processing of information about you. Information on your device, such as recordings and measurement data, can be deleted by you at any time. We hold no personal information about you, but you are welcome to reach us at sonir@nadai.dev with any question. If you reside in Japan, rights under the Act on the Protection of Personal Information are respected in the same way.

Children’s privacy

The App is not a service directed at children, and we do not knowingly collect personal information from children.

Revisions

We may revise this policy for feature additions or legal compliance. For material changes, we will update the date on this page and, where possible, notify you in the App or on this site.

Contact

For inquiries about this policy, contact sonir@nadai.dev.