Privacy Policy

Effective Date: October 2026

AmpliWidgets (“the App”) is an independent utility developed for controlling Marantz and Denon AV receivers via local Wi-Fi and interactive iOS widgets. Your privacy and local network security are paramount.

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Summary

The App collects no personal data, tracks nothing, contains no analytics, and operates zero external servers. All network communication is strictly confined to your local Wi-Fi network between your Apple device and your AV receiver.

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What We Do Not Do

• We do not collect, store, or transmit your name, email address, IP address, device identifier, location, or usage analytics.
• We do not include third-party SDKs, tracking pixels, telemetric reporting tools, or advertising frameworks.
• We do not contact any proprietary remote server, cloud backend, or database.
• We do not sell, share, or monetize any data, because no data is ever collected in the first place.

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Local Network Access

• Direct Socket Communication: The App uses Apple’s official Network.framework to communicate directly with your AV receiver over your local Wi-Fi network using standard ASCII control protocols on TCP port 23.
• Bonjour / mDNS Discovery: On initial setup, the App scans your local network for compatible receiver services (_heos-audio._tcp, _raop._tcp, _http._tcp) to automatically discover your receiver’s IP address.
• Local Network Permission: Local network access is requested through Apple’s native system authorization prompt (NSLocalNetworkUsageDescription). No network data or packet traffic is ever transmitted outside your local area network.

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Local Storage

• The App stores your receiver’s local IP address, custom input labels, volume step preferences, and volume safety ceilings on-device using standard UserDefaults and secure Keychain storage (KeychainStateBridge).
• In accordance with Apple requirements, our system usage of UserDefaults is declared in the app bundle under Apple’s reason code CA92.1 for user preference persistence. No personal information or tracking identifiers are stored.

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Children’s Privacy

The App does not collect any data from anyone, regardless of age. It is rated 4+ (Made for Everyone).

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Changes to This Policy

If this policy ever changes, updates will be published at this same URL with a revised effective date. Because the App operates with zero data collection, any future changes can only maintain or narrow this scope.

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Contact & Questions

If you have questions about this Privacy Policy or AmpliWidgets, you may open an issue at: https://github.com/amolkarnik/ampli-widgets/issues