Yes, I know what you thought – another stupid toy for iPhone hamsters :) But not this time! This program really measures the pulse and for this you only need an iPhone 4 (ideal) or an iPhone 3Gs (works only in good light). No cardio sensors, no plug-ins. Will you try?
The principle of measurement, according to the assurances of the developers, works like this – you close the camera of the phone with your finger, on which the flash diode is also lit. The camera detects the blood flow in your finger and measures your pulse in real time. If you press the camera hard, then stop the blood flow in the measured place and the measurement will be stopped. Press your finger lightly and do not believe your eyes as I did not believe :)
I checked the operation of the program by measuring the pulse in parallel with my finger on the cervical artery. The result was almost the same up to thirty push-ups:
...and after them:
By the way, when the program measures the pulse, it plots and beeps like a real medical device – fetishists should like it.
In the settings, you can specify your age to more accurately prescribe normal pressure zones.