The latest update of this application was launched on Sep 28, 2018 and the tool has been installed by over 100K users. The app is very popular among Samsung and LG users. You are able to get the setup package of White Noise 5.7.6 free of charge and have a look at users' reviews on Droid Informer.
Users write reviews pointing out that you can find a beautiful interface, useful features, constant updates, battery optimization and amazing support among the pluses of the app. As users mention, there are several drawbacks, they are pop-up ads, minor bugs, constant notifications and its high cost.