This is the worst $3 I have ever spent in my entire life. I went into this app thinking it would turn my entire phones blue light off so that when I was on my phone at night it would be dimmer and the blue light would not affect my sleep. I was severely dissapointed to find that all you can do through this app is search, and even something as basic as that still manages to have flaws. Do not waste your money on this app.
JustTryingToSleepBetter about Unblue