RiLAXapp is a US$0.99 app with one mission: to provide an audio and visual experience to help you unwind. The app features three different scenes -- one with water, another with a crackling flame, and a third with the aurora borealis over some mountains.
There are animated visuals and ambient outdoors sounds, along with some faint music. Unlike many apps with relaxing sounds, this app lets you interact with the scene. Tapping on the screen might give you, for example, a bell sound, and drawing on the screen displays animated effects that follow your finger.
I found the audio most effective on headphones, especially headphones that cut you off from outside sounds. The environmental sounds are realistic, and there is just a faint hint of music. On-screen controls let you hear just the music or the ambient sounds without the music. I would like to see sliders in RiLAXapp to let me create my own blend.
I'm not sure how relaxing it is to watch the animations and play with the screens. My idea of relaxation is to close my eyes and turn off all visual stimulation, but everybody is different and the interactive images may be great for some users.