I tried the 14 min first. The another 7 mins. Then the 21 mins. None worked for me. I was still awake for another 2 hours after all of that. My breathing was also difficult to sync with the light. Also, are you supposed to look at the screen or the ceiling?

I deal with occasional insomnia due to stress, this app cured me! Instead of staring at the ceiling for hours, I turn this on and am out in... Well less then 7 minutes, not sure exactly but I never see the end of the cycle. :)Update: still love the app, but I've realized the cycle ends on bright blue. It would be much better if it ended on a black frame, I fear this is damaging my phone & causing it to be hot all night with the screen lit.

Yes, it's worth the $1 to try it. You could spend $60 for a device that does the same thing to find out if that works, or you could try this one for a buck. 1 star reviews are dumb if it didn't work for you - the app just saved you $59.

It works!! Just the same way you unconsciously sync your breathing with someone else's when you're lying next to them, you start breathing in time with the light. I've never made it the whole 7 minutes. I think blue was a good choice of color too.