OrthoMeter joins a number of apps that utilize the iPhone’s internal accelerometer to conveniently measure clinically relevant angular measurements. In this case, the app is beautifully designed to assist with the measurements of an angle between two lines, an angle measured from the horizontal, and an angle measured off the vertical. For the three functions, the images provided suggests arthroplasty functions, such as the distal femoral angle, the alpha angle of the hip, and acetabular cup version, respectively. The user interface is very simple and intuitive and includes the ability to save and email data for specific patients. One thing that sets this app apart from other goniometric devices is the elegant interface, as well as the ability to receive the angular results via either a male or female voice. Unfortunately, at a price of $11.99, this app is somewhat expensive given its limited function and less expensive competitors. However, for providers that intend to use this app regularly and appreciate the nice design, this may be a good investment.