From a New York Times review.
A path to a quiet mind can travel through apps dedicated to guided meditation and sleep enhancement. And fortunately, for those who need more, or better, rest, or who are inclined to still their minds for a few minutes a day, some good ones exist on all the major mobile platforms.
Simply Being ($1 on Apple, Android and BlackBerry) and Mindfulness Meditation ($2 on Apple, with an Android version in the works) are among the better ones, while Universal Breathing – Pranayama Free (free on Apple) and Pranayama Free (on Android) are useful for those who want to test the waters.
Those with pressing insomnia issues should consider Pzizz Sleep ($6 on Apple, with a Lite version for $2). On Android, the app costs $5.69 and goes by the name Pzizz, the Insomnia Solution. Another good, but pricey, option, is Mayo Clinic Insomnia Wellness Solutions ($25 on Apple).The meditation apps, though, may well be enough to get you to sleep — or at least help calm you down.
Pranayama Free is the simplest. It leads you through exercises meant to limit you to seven breaths per minute, five breaths per minute, or about four breaths per minute. When I tried it, the graphics were helpful, but the music was a tad obtrusive…