dBMeter can measure and record ambient noise.
In addition to simply providing a measurement function, it provides a recording function so that you can browse past noise information.

✔ Measuring Noise
Shows ambient noise as a numeric value in decibels (dB).
You can check the description of the noise level.

👌 Capturing Decibel
It provides a recording function within the app, without the need to inconveniently take screenshots to record noise that occurred at a specific time, such as noise between floors.
All information, including location information, is not transmitted/stored anywhere other than the mobile phone.