It's a Free LD induction app. I want the DreamZ app but I'm not gonna pay. Lucidity plays a sound every 15 or 30 minutes. If you are still awake when it plays the sound you question your reality. You will want to train yourself to question the sound, when you sleep (you leave it on overnight). You usually can wear headphone with it....

Tell me I this would be effective.

Again, it's called Lucidity