Joint Goniometry is an easy to use application, which allows the user to measure ROM of all major joints of the body (shoulder, elbow, wrist, hip, knee & ankle) with just two taps. Place your iPhone on the center of the joint, align it to the proximal body part and tap, align it to the distal body part and tap again and you have an accurate measurement! In the application the user may use the menu to find information about the axis of motion, the body landmarks necessary for a proper and standard alignment of the device and indicative photographs for the placement and alignment of the device respective to the joint being measured. Alternatively, you may use the simple mode, which will allow you to measure straight away!