Heart Rate. Relax funktioniert nicht

Includes high-quality looped sounds such as Ocean Waves, Floor Fan, Thunderstorm and Campfire. - Hold the tip of your index finger over the back camera lens and flash of your phone. - Do not press too hard or you will restrict circulation which will result in an inaccurate reading. - If your fingers are wet or too cold the app will not work.  Let over 20 high-quality endless sounds lull you to sleep in no time, with more sounds added all the time.  It's the most effective & highest quality sleep app, with a multitude of hight quality sleep sounds.  This app is made to help you fall asleep and stay sleep though the night.  With sleep sounds you'll sleep tonight, guaranteed.  It can help you sleep soundly in environments that can be problematic for restful sleep.  Your subscription will automatically renew at the end of each billing term and your credit card will be charged through your iTunes account.  Mix and match any combination of sounds and save your favorite combinations.  Analysis of your heart rate depending on your age, gender and history of measurements. Trouble sleeping?  Slumber offers: an auto-renewing subscription at $89. 99 a year.  Our App helps you fall asleep fast!  App is being used all over the world as the ultimate sleep-aid device.  You can turn off auto-renew at any time from your iTunes account settings but refunds will not be provided for any unused portion of the term.