KaiShui: Brown Noise & Tracker

Say goodbye to repetitive, generic loops. "KaiShui" is a premium tool designed for audio customization and deep sleep analysis. Deeply integrated with iOS features, we give you ultimate control over your sleep environment. 【Key Features】 10-Track Smart Mixing Engine: Unique dual-layer logic for background ambiance and accent sounds. Supports independent volume control, random intervals, delayed starts, and fade-in/out to simulate a truly natural, non-repeating soundscape. Live Activities & Dynamic Island: Track your sleep countdown directly on the lock screen and Dynamic Island without unlocking your phone. HealthKit Insights: Sync with Apple Watch to monitor sleep stages (Deep, REM, etc.) and heart rate. Our algorithm analyzes which sound combination induces your deep sleep best. Siri & Automation: Supports "Hey Siri, start sleep session" to seamlessly blend into your smart iOS life. All-Format Audio Import: Supports MP3, M4A, FLAC, and more. Import your favorite tracks into the mixing engine for infinite possibilities. 【Our Promise】 Focused entirely on sleep. No ads, no social features, no bloated recommendations. Supports iCloud backup for cross-device syncing. Privacy Policy：https://www.yuque.com/bashert/hzq6z2/gi672n1ydh2h02dt?singleDoc# Terms of Use/EULA：https://www.yuque.com/bashert/hzq6z2/ezvibonrmu1mebbf?singleDoc#