New version is a step back in usability

Favourites should be visible by default when you open the app instead of Library. You only spend so much time listening to new sounds in the library before finding ones you like. Once youve found your favourites and flagged them, youll want to return to them quickly again and again in the future. Having library be the default view runs counter to the purpose of assigning favourites (quick access) by always making it an extra unnecessary click away.

Positronic Tomato about Rain Rain Sleep Sounds, v4.1