This app generates different types of noises based on noise and filter algorithms, not loops.
Warning: it’s loud. To protect your ears, gradually increase the volume from 0.

This is a mostly discontinued application created in 2018, first for personal use. This means that the app was tested only on a small range of devices, although it may work without problems on many more.
The developer cannot be held responsible for any consequences arising from the use of this app.