Sound Meter

Sound Meter is a precise and easy-to-use noise meter that measures ambient sound levels in real time — right from your smartphone. 1. Real-Time Measurement - Watch live decibel readings on a beautiful arc gauge with a smooth needle and peak hold indicator. The scrolling dB graph shows sound level changes over time at a glance. 2. Min / Avg / Max Stats - Track the minimum, average, and maximum decibel values for every session automatically. 3. Threshold Alert - Set a custom dB threshold. When noise exceeds the limit, you'll get an instant vibration and sound alert — great for monitoring noisy environments. 4. Calibration & Response Speed - Fine-tune your measurements with a ±20 dB calibration offset. Switch between fast and slow response modes to match your needs. 5. Measurement History - Every session is saved automatically. Review past measurements anytime — date, duration, and min/avg/max values all in one place. 6. Noise Level Reference Chart - Not sure what a dB value means? Open the built-in reference chart to see what everyday sounds correspond to — your current reading is highlighted in real time. 7. Dark & Light Theme - Choose the look that suits you. Both themes are optimized for comfortable use indoors and outdoors. 8. Background Measurement - Keep measuring even when the app is in the background. A persistent notification shows the current dB level so you're always in the know. Whether you're checking room acoustics, monitoring workplace noise, or just curious about your environment — Sound Meter gives you the data you need.