Pulsmesser herzfrequenz app funktioniert nicht

HeartRate measures your heart rate by analysing the colour changes in blood flow from the tip of your finger. - Your pulse is shown in real-time, similar to pulse oximeters used in hospitals. - Easily and Quickly share your results via email, Facebook, Instagram, WhatsApp, Dropbox, or any other sharing app installed on your device. - 7 days of free trial followed by $14. 99/month.  The payment will be charged to your iTunes Account within 24 hours prior to the end of the free trial period - if applicable - or at the confirmation of your purchase.  Any unused portion of a free trial period, if offered, will be forfeited if you purchase a subscription to that publication where applicable.  Your iTunes Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal.  This subscription automatically renews for $12. 99 a month after the 3-day free trial. You can cancel anytime.  The metrics collected from the app (your heart rates) are securely stored internally on your own device, giving you, and only you, secure access to them, any time, anywhere.  Your subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period.  You can cancel auto-renewal at any time, but this won't affect the currently active subscription period.  Simply place your index finger over the camera of your iPhone, and within a few seconds, your pulse will be shown in real-time!  The most accurate and easy-to-use heart rate app for monitoring your health and fitness.  Unlike other apps, we don't ask or collect any personal information about your name, age, email or gender.  Price may vary depending on the region or country.  You can delete your data at any time by uninstalling the app.