Snore Detector is a privacy-first, 100% open source Android app for real-time snore detection and sleep analysis. All audio processing happens entirely on your device—no cloud services, tracking, telemetry, or network connection required. Features • Real-time snore detection using multiple digital signal processing (DSP) algorithms, including decibel level, RMS power, Zero-Crossing Rate (ZCR), snore-band spectral energy (100 Hz–1 kHz), and low-frequency spectral analysis. • Privacy by design. Audio never leaves your device. No accounts, analytics, advertising, or external servers. • Adjustable detection settings. Customize sensitivity and enable or disable individual detection algorithms. • Snore event history. Detected events are stored locally with timestamps, duration, peak volume, and confidence information. • Optional audio recording. Save short WAV recordings of detected snoring events for later playback. • CSV export. Export your detection history for personal analysis or to share with healthcare professionals. • Modern interface. Built with Jetpack Compose and Material 3, supporting light and dark themes. Privacy & F-Droid Snore Detector is fully offline and designed to comply with F-Droid's Free Software principles. No analytics or telemetry No advertisements No proprietary SDKs No tracking No cloud services Works entirely offline The app only requires the permissions needed for audio monitoring and background operation. Technology Kotlin Jetpack Compose (Material 3) Room database Kotlin Coroutines & StateFlow Android AudioRecord with on-device FFT-based signal processing Foreground Service for continuous overnight monitoring Snore Detector is free software released under an open-source license, giving you full control over your sleep data while providing reliable overnight snore monitoring.