Application is a simple simulation of resuscitation ( CPR first aid). In simulation you can use finger to tap screen as a manual process and microphone as a breath simulation. On left part of screen you can show rate of heart massage. After 30 finger clicks you have to make breath twice (blow into microphone). This is example of adult CPR process.You can see more information in many web sites about first aid with CPR method. Application use accelerometer to simulate motion of hand (by smartphone) to make press move on chest.
Resuscitation is main method of life saved. Everyone should know rescutation. TryRescutation may help you in simply way learn this method.