Sound Meter: dB Noise Level

Sound Meter turns your phone into a decibel (dB) meter. Tap Start and instantly see how loud your environment really is — at home, at work, in a cafe, on the street, or anywhere noise bothers you. Your privacy comes first: audio is NEVER recorded, stored, or sent anywhere. Sound Meter only measures loudness — nothing is ever saved or uploaded. KEY FEATURES • Real-time decibel reading — see the current sound level as it changes • Now / Average / Max — track the live level, running average, and peak in one glance • Calibration — nudge the reading to match a reference so it fits your device • Share your result — send the average and max dB to friends in a tap • Reminder notification — a gentle nudge to check the noise around you • Dark mode — easy on the eyes, day or night • English, Korean, Japanese & Traditional Chinese — full in-app language switch • Lightweight and fast — clean, simple, no clutter WHO IT'S FOR • Anyone curious how loud a room, street, or event really is • Renters and neighbors checking on noise • Parents keeping an ear on a nursery or play area • Students, hobbyists, and the simply curious IMPORTANT Sound Meter is an approximate tool (typically ±5–10 dB). Phone microphones vary, so it is NOT a certified sound level meter and must NOT be used for occupational, legal, or medical purposes. Use the built-in calibration to get closer to a known reference. Download Sound Meter and find out how loud your world really is.