Effective date: July 20, 2026
SleepMixBlueprint is a simple sleep-sound mixer for iOS and Android. This privacy policy explains what data the app handles — and what it does not.
SleepMixBlueprint does not collect, transmit, store, or share any personal data. Specifically:
The built-in ambient sounds are bundled with the app and never leave your device. If you import your own audio files, those files are read locally and are never uploaded anywhere. SleepMixBlueprint has no server to upload them to.
Your preferences — volume levels, timer duration, Kids Mode state — are stored in your device's local storage (AsyncStorage / device keychain). They are not synced to any external server.
When you download or run SleepMixBlueprint, Apple's standard platform services (App Store, iOS/Android OS, TestFlight) may collect diagnostic or performance information according to Apple's Privacy Policy. That data is between you and Apple; SleepMixBlueprint has no access to it.
SleepMixBlueprint includes a Kids Mode for simplified playback, but the app itself does not collect information from anyone, including children under 13. No parental consent is required because no personal data is collected.
SleepMixBlueprint does not integrate with any third-party service, advertising network, or social platform. There are no in-app purchases, subscriptions, or payment flows inside the app that send data anywhere.
If this policy ever changes, we will update the effective date above and post the revised version at this URL. Because we collect no personal data today, any future change that introduces data collection will be announced prominently in an app update before it takes effect.
Questions about this policy? Reach out at sleepmixblueprint@gmail.com.