This is a research application not intended for personal use.
iFall listens to the phones accelerometer and tries to detect when a fall has occurred. There are three stages to a fall: 1) the fall, 2) impact with the ground, 3) a long lie indicating the user is injured and needs assistant.
In the case a fall is detected the user is issued a prompt. This prompt is to the give users a change to reduce false positives. If the alert has timed out without user response, their emergency contact (set in alert settings menu) is automatically called to further evaluate the situation.