Cardiac Diagnosis app for iPhone and iPad

Using the phones camera and LED, photoplethysmography (PPG) is measured and analyzed from the finger to inform heart rate and heart rate variability and is used for health management purposes.
When you place the tip of your index finger on the rear camera, the heart-shaped camera preview turns red, then click the start button to start measuring.
Normal Measurement takes about 20 seconds, and Precision Measurement takes about 1 minute.
Continuous Measurement can monitor heart rate and heart rate variability in real time.
You can save measured values by clicking the save button on each measurement screen.
Saved data can be viewed in the record list view, and you can view detailed data by clicking on the list.
Data can be deleted by dragging it to the left in the list.
Saved data can also be viewed in graph form in the history graph view.

Disclaimer
This app is not intended for medical use and is to be used only for general fitness and health purposes and is not a medical device.