We consider the number and types of applications that users install on their devices. The number and types of applications on a device can provide insight into the likelihood that a user encountersmalw are or grayware. In particular, users who install a large number of disposable applications on their devices have a higher risk profile than users who install a small number of applications. To explore this area, we asked study participants to count and categorize their applications; we checked and re-categorized applications as necessary for consistency