As someone who can’t effectively listen to music and do work at the same time, this app has made studying in public spaces much more doable. When I listen to music, especially music that has lyrics, I find it extremely difficult to focus on things like reading or writing. When I’m in a cafe, the dining hall, or anywhere public where I want to sit and read a textbook or work on a problem set, I use this app as a substitute for music for blocking out noise. The app has over 100 unique sounds including hair dryer, cicadas, keyboard, cat purring, playground, humming, rain on a roof, underwater, tribal, and more. It also has the classic white noise sound as well brown noise and pink noise (whatever those are). The app is great because it allows you to play as many sounds overlapping as you want, and you can save combinations of sounds that you like.