1. I use it every day and ive never had a problemReally cute, but the blue light filter made my phone's home screen non-reactive and I had to use the notification bar to restrict its privileges before I could tap anything again, which is a pretty major design flaw.
2. Everything works but I found it frustrating that I could only play one sound at a time instead of the normal mix and match and volume dials for sounds in the other apps.
3. I wish more sounds were available for free but I am thankful for all the options there are for free! Also there are no loud ad interruptions and the app can run in the background and over other apps.
4. It uses free audio, so some of it may not be of the highest quality, but I still personally find it wonderful, as it can play in the background while using other apps.
5. There's a healthy variety of sounds & the music choices are very nice (I'm partial to the 1st piano one) I really like the dim option, it's much more precise than my phone dimmer and without the loss of detail.
6. The whole app does not close down - the night light is still on, it's just the noise part that keeps shutting off and in order to turn it back on I have to completely shut the whole app down and restart it.Cute little app.
7. You can change the color of your app green, purple, and orange, set timers for music and light filters, and adjust the brightness of the app when you open it.
8. The blue light filter is fantastic and adds a yellowish tinny to the screen so it doesn't damage your retinas.
9. There are several different blue light filter options and timers that are nice too.
10. I would highly recommend 5/5! Also the app didn't ask me to review but there is a button for it which was helpful!This works super well, and the additional white noise sounds are cheap.
11. You choose the background color, and every night you can choose from piano songs or soothing sounds.