Privacy policy

Last updated 2026-07-19.

SQUELCH collects no personal data. There is no account to create, no analytics SDK, and no tracking of any kind, in the app or on this site's product pages. This site sets no cookies.

When you speak a radio call, your voice is transcribed and graded entirely on your iPhone, using Apple's on-device speech framework. Audio is processed locally and is never transmitted anywhere, and we have no server that could receive it.

Live mode connects your iPhone to the free DETENT bridge running on your own PC, over your own local network. That connection stays between your two devices; nothing about your flight, your radios, or your readbacks is sent to us or to any third party.

Curriculum content, phraseology templates, and airport data are bundled with the app and work entirely offline. Using them does not contact any server.

The only network interaction SQUELCH makes is Apple's own in-app purchase processing. When you buy the full version, that transaction is handled by Apple through StoreKit, on Apple's infrastructure and under Apple's privacy terms. We never see your payment details, and we run no server of our own that any of your data could reach. In App Store terms, SQUELCH collects no data, tracks nothing, and bundles no third-party analytics or advertising SDKs.

Questions about this policy, or about SQUELCH generally? Write to support@sigilark.com.