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Read decibels at a glance, see the full spectrum, estimate your daily noise dose and catch snoring in a sleep journal. All on your device, no account needed. Whether you are keeping an eye on building works, a noisy flat, the commute or a rehearsal room, dB Halo gives you a clear view of the sound around you while processing stays on your device...

Accurate, beautiful sound meter — pay once, no ads, no subscriptions. Now with Trends & Insights, a pro analyzer, noise map, Apple Watch and 30+ languages. dB Meter turns your iPhone into a fast, beautiful, and accurate sound-level meter. Measure the noise around you in real time — at home, at work, at a concert, or anywhere you want to prote...

WHISPER-QUIET PERFORMANCE: Operating as low as 23 dB, helping clean the air without disrupting sleep, focus, relaxation, or everyday activities. SMARTER PURIFICATION WITH LESS EFFORT: Control fan speed, schedules, and settings from anywhere using the Blueair app, while Auto Mode intelligently adjusts purification based on chang...