I have tried many applications which should increase by productivity, sleep quality, or you-name-name-it. I don't recall a single one that managed to do so in the long run (most not even in the short run...).
So either one is open to change and that has little to do with technology or... You're toasted anyway. But even when you decide to change for yourself and not because a notification tells you to do so, these technologies become time consuming and troublesome to use. Of course they look nice on TV and ads, but in real life, most of them are frivolous IMHO.