[alvarop]

I've been using the Point(https://minut.com/), which is half the price and no annual fee.

I mostly use it for temperature/humidity sensing, but it also has sound level logging/alerts.

[frenchman_in_ny]

NetAtmo [0] does the same thing as well -- full weather sensor suite, similar pricepoint to NoiseAware, no annual subscription.

[0] https://www.netatmo.com/product/weather/weatherstation