Sound Meter: Decibel Meter

Turn your phone into a real-time sound level meter. Sound Meter measures the noise around you in decibels (dB) and shows it on a smooth, animated gauge — instantly, with no setup. Whether you're checking a noisy workplace, a loud concert, your home, traffic, or just curious how loud something really is, Sound Meter gives you a clear, color-coded reading at a glance. ━━━━━━━━━━━━━━━━━━ KEY FEATURES ━━━━━━━━━━━━━━━━━━ ● REAL-TIME DECIBEL GAUGE A beautiful animated needle gauge shows the current sound level as it happens, with four easy-to-read color zones: • Green — quiet (0–60 dB) • Yellow — moderate (60–85 dB) • Orange — loud (85–120 dB) • Red — dangerous (120+ dB) ● LIVE STATS See your current, minimum, peak, and maximum readings at a glance. ● HISTORY GRAPH A rolling 60-second chart shows how noise levels change over time, with threshold markers. ● RECORD SESSIONS Start a recording to capture a noise session — Sound Meter saves its duration and average, minimum, and maximum decibel levels so you can review it later. ● SAVE & COMPARE READINGS Snapshot a moment, give it a name, and compare readings between different rooms, places, or situations. ● DAILY EXPOSURE REPORT Review a summary of your sound exposure over time. ● NOISE EXPOSURE TRACKING (OPTIONAL) An optional noise dose indicator based on the 85 dB / 8-hour standard helps you keep an eye on prolonged loud exposure. ● THRESHOLD ALERTS Set a decibel limit and get a vibration alert when it's exceeded. ● CALIBRATION Fine-tune readings with an adjustable offset (-20 to +20 dB) to better match a reference meter. ● DARK & LIGHT THEMES A pure-black OLED-friendly dark mode (default) plus a clean light mode. ● HANDY EXTRAS • Keep the screen awake while measuring • Share a screenshot of your reading ━━━━━━━━━━━━━━━━━━ PRIVATE BY DESIGN ━━━━━━━━━━━━━━━━━━ Your privacy comes first. The microphone is used only to measure loudness — NO audio is ever recorded, saved, or sent anywhere. All your sessions, readings, and settings stay on your device. ━━━━━━━━━━━━━━━━━━ PLEASE NOTE ━━━━━━━━━━━━━━━━━━ Sound Meter is for informational and educational use. Accuracy depends on your device's microphone and built-in limits, so it is not a replacement for a professionally calibrated sound level meter. Please don't rely on it for occupational safety, legal, or medical decisions. Using the calibration setting against a known reference will improve accuracy. Download Sound Meter and find out how loud your world really is.