Heartily Happy

Heartily Happy is a heart rate monitoring app that tracks your heart rate changes by a smartphone camera. Researches have shown that slight changes in heart rates during few-minute monitoring can reveal both the physical and mental health of a person.
Heartily Happy is designed for researchers from various disciplines. The cardiac data is collected with smartphone photoplethysmography. Heartily Happy can also be used by ordinary users to track his or her own heart rates.
Heartilly Happy provides various cardiac information, including heart rate variability, pulse waveform features, and power spectral densities of the waveform.
Heartily Happy is developed by a group of researchers from UC Berkeley and Tsinghua Univeristy, China. The accuracy has been verified in several academic papers. We urge researchers from all fields to include cardiac information into your research design. If you have any question or problem when using the app, you can feel free to contact us. We're also very interested in any research cooperation proposals.
We invite you to monitor your own heart rates constantly. And you will find it interesting and helpful.
For further information. Check the following websites: https://heartilyhappy.wordpress.com/