Figure 4. Vertebra checker. It lets you take a standing picture and then measure angles after adjusting the pointers on the head, spine, shoulders, and hips. rotation. It also keeps track of height, weight, and photo records to allow later comparisons. The program offers answers to some frequently asked questions on scoliosis and displays latest news feeds on the topic. This is probably the most comprehensive of all of the four available apps. Scoliometer (Figure 3) (Health in your hands; $0.99) is a simpler and cheaper version of the same app by the developer of Scoliotrack. Vertebra check (Figure 4) (by HK Ahn; free and $0.99 versions) is an app primarily in Chinese, but it has an English version. The free version lets you take a standing picture of your back and then adjust the pointers on your shoulders, hips, spine, and head to calculate how much scoliosis you have. The $0.99 version allows you to save the picture and measure more angles. It also has a search option. There are three similar apps for scoliosis measurement in non-English languages. Given the new capabilities of smart phones, it is becoming straightforward to develop apps that will measure Cobb’s angles on a roentgenogram, save and later use that data for research or clinical use. We can anticipate that future apps will allow for automated determination of patient parameters to assist in management and decision making. The proliferation of apps for correcting posture in real time will likely also have utility in measuring, monitoring, and diagnosing kyphosis and sagittal plane abnormalities. Although the proliferation in technology in medicine has met with challenges and limitations, the widespread availability of smart phone technology provides an opportunity for neurosurgeons to leverage these new capabilities to improve patient care.