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Privacy Policy

Last updated: April 10, 2026

Nudge for Sonos (“Nudge”) is developed by Bolton LLC. This policy describes how Nudge handles your data.

The Short Version

Nudge is local-first by design. Your Sonos data stays on your devices and never leaves your home network. The app collects anonymized usage analytics and crash reports for improvement purposes, but does not track listening habits, use advertising identifiers, or sell data.

What Nudge Accesses

Local network: Playback control occurs directly between your Apple Watch, iPhone, and speakers. Your Sonos data is never transmitted externally.

Wi-Fi network identification: Nudge requests Location permission on your iPhone solely to identify your Wi-Fi network name (SSID) and network identifier (BSSID). For multi-household features, network identifiers may be stored encrypted on Cloudflare.

Analytics: Amplitude Analytics collects anonymized usage events (screen views, feature usage, playback actions) without personally identifiable information or advertising identifiers. Amplitude Experiment is used for feature flag evaluation only — no additional data is collected. You can opt out of analytics and crash reporting in Nudge Settings on your iPhone — opting out stops all future collection immediately and permanently deletes your existing data within 30 days.

Crash reporting: Sentry collects crash logs, stack traces, device model, and OS version to monitor app stability. A random device identifier is used for session correlation only — it is not linked to any Apple ID or user account. No personally identifiable information is collected.

Push notifications: APNs tokens are stored on a first-party Cloudflare Worker for notification delivery only. Notifications are used solely for background wake-up between your iPhone and Apple Watch — no marketing content is sent.

Apple Music: Search queries use Apple’s MusicKit API, governed by Apple’s privacy policy.

Sonos Cloud: Optional OAuth authentication is governed by Sonos’s privacy policy. The developer never sees your Sonos credentials.

In-app subscription: Nudge offers a 7-day free trial followed by a $9.99/year annual subscription. All purchase data is processed entirely by Apple’s StoreKit framework on your device. No financial or purchase data is collected or stored by the developer.

What Nudge Collects

  • Anonymized usage analytics via Amplitude
  • Crash reports via Sentry
  • Anonymous user ID (random UUID, not linked to Apple ID or hardware)
  • Push notification tokens (stored on first-party Cloudflare Worker)
  • Wi-Fi network identifiers (for speaker discovery)
  • Anonymized user properties (e.g., speaker count, authentication level)

What Nudge Does NOT Collect

  • Advertising identifiers (IDFA)
  • Device fingerprinting
  • GPS or geographic location
  • Listening history transmitted externally
  • Sonos content or speaker names sent externally
  • Personal contact information (name, email, phone)
  • Financial or payment data
  • Data sold to third parties

Data Storage

All Sonos data remains locally stored on your devices. Sensitive access control data is stored using zero-knowledge encryption — the server stores encrypted blobs that only your devices can decrypt. Analytics data is processed by Amplitude. Crash data is processed by Sentry. Push tokens reside on first-party Cloudflare infrastructure. All third-party services are used solely for first-party product improvement — data is never shared with advertisers or data brokers.

Token Beaming

Temporary encrypted keys are transmitted over local networks for guest access (DJ Mode). No passwords are shared, and keys expire automatically. Access can be revoked at any time.

Third-Party Services

Nudge integrates with the following services, each with their own privacy policies:

Children’s Privacy

Nudge does not knowingly collect data from children under 13 beyond the anonymized analytics and crash reporting described in this policy.

Changes to This Policy

Updates will be posted at this URL with revised dates.

Contact

support@bolton.llc | Bolton LLC, Massachusetts, USA