I Built a Free AI Sleep Tracker as a PWA — No App Store Needed

The Problem Most sleep tracking apps cost $30-60/year, require app store downloads, and upload your personal sleep data to the cloud. I wanted something simpler. So I built OohSleep — a free Progressive Web App that tracks your sleep, detects snoring with AI, and helps you fall asleep with ambient sounds and breathing exercises. What It Does 🎤 AI Snoring Detection — Uses the Web Audio API and MediaRecorder to listen for snoring patterns during sleep 🎵 8 Sleep Sounds — Rain, ocean waves, thunder, campfire, wind, forest stream, crickets, and snow — all mixable 🫁 5 Breathing Exercises — 4-7-8, Box Breathing, Belly Breathing, Alternate Nostril, and Physiological Sigh with guided animations 📊 Sleep Reports — Track duration, quality score, and sound events over time 📅 Sleep Calendar — Visual history with daily and weekly views Tech Stack No frameworks, no backend, no database. Just: Vanilla HTML/CSS/JS Web Audio API for sound mixing, playback, and audio analysis MediaRecorder API for re