Use the phone camera to test your heart rate, simply put your finger on the camera, then touch the "Start" button to test the heart rate.
If you carefully look at your finger against the light, you will find the light is dimmed when heart beats once, this app will automatically detect the rhythm of light and convert into number for your reference. It can ensure the displayed number accurate!
Note: good lighting environment is very important to the accuracy of the test, you'd better sit back to the light or sunlight when using this app.
The test is for reference only. If you have any questions, please consult the doctor!
Fixed the bug.
Modification of the measurement process.
Modification of layout
Reconfiguration of Permission and ad system