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.

Recent changes:
v1.0
• First release of Sound Meter.
• Real-time decibel reading with Now / Average / Max.
• Calibration, share result, dark mode, and English/Korean support.
Thanks for trying it — feedback and ratings are always welcome!