sound meter

The Sound Meter app is less of a surprising app, since it uses your phone’s microphone to take its readings. The app features a beautifully sensitive display, complete with a rolling chart of sound differences as they occur. It’s a great way to test your environment to see if you’re being subjected to excess noise, but probably not something you want to use in a crowded bar or club. We particularly like the text chart which shows equivalent sound levels as examples, e.g. busy street, alarm clock.