Confusing
I see BPM but the other buttons don't do anything or tell me anything g useful.. Preview of what? Is this suppose to do more than show me BPM cause my Apple Watch can do that. Is there a site or link to user guide?
NO HRV READING! DECEPTIVE NAME!
Definitely not worth $4.99, and as they offered no free trial you have to pay to use it and realize the name is misleading.
Response from developer
The heart rate variability or HRV is in the heart rate graph. The shape of the graph contains the information. The description in the app store states clearly "The shape of the heart-rate graph can give you immediate information about your stress level. Certain shapes are associated with higher states of stress and certain states are associated with lower states." The app is meant for people who have learned how to use the shape to indicate their stress level. I am sorry you spent money without understanding what the product is meant to do. I will see if I can change the description to clarify the prerequisites for using it. The app is not free because the data is completely private to the device and only the device owner can send it via email.
