Download of Elpy 1.1.8 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The application lies within Audio & Video Tools, more precisely Music Production. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The actual developer of this free Mac application is Vane Jung.
From the developer:
Elpy is an ambient sound mixer. With this application, you can get creative, mix, and adjust ambient sounds to create your own atmospheres. Then, you can use your mixed ambient sounds for activities of your choice, such as productivity, meditation, and sleep aid.
You may want to check out more Mac applications, such as Mixtikl 5, Noatikl 2 - Generative Music Lab or VDMX, which might be similar to Elpy.