Smartphones are used widely by the general public and students. They are one of the most popular and easily accessible technologies. These devices were originally designed as a means of communication. However, they have evolved into a mobile computing platform with built in sensors and the ability to access a vast number of applications. This study describes research that demonstrates how the smartphone can be used to detect solar ultraviolet-A radiation and how this integrates with the skills described as part of the middle school Australian Curriculum. It also outlines how smartphones can be used to support sun protection policies within schools.