I can also recommend Binaural Beats - <a href="https://f-droid.org/en/packages/com.github.axet.binauralbeats/" rel="nofollow">https://f-droid.org/en/packages/com.github.axet.binauralbeat...</a><p>I'm sure the somewhat mythical claims about the healing power of noise are over-stated, but it does provide a more interesting set of noises than Chroma Doze. Excellent for long-haul flights and crappy commutes.
It's probably not a good idea for a long run, but my daughter for a few years now is put into sleep with noise generated from the app. It was a life saver for us, to help her get to sleep. Otherwise we are too loud for her, or neighbors. I put the preset to a triangle starting high on red and low on violet. Also options to a delicate amplitude pulsing.<p>It is also very helpful to go to sleep if it is too loud also for adults.<p>It is a perfect app for me.
Love this app.<p>Don't miss the recent discussion documenting "NeoStore [1], which is an alternative frontend for F-droid" that auto-updates (and a couple other options):<p><a href="https://news.ycombinator.com/item?id=35002983#35003784" rel="nofollow">https://news.ycombinator.com/item?id=35002983#35003784</a>
Great, simple app. When my tinnitus hinders me from going to sleep, I turn on Chroma Doze and that will mask the ring. Luckily, I don't need it often. And yeah, it can also mask other noise.