Mobile devices have become an indispensable part of our everyday lives, mastering our on-line transactions and influencing our communication with others. However, most smartphone users experience application crashes once in a while. A crash manifests when, for example, you are using your favorite application and it suddenly stops working properly or closes. Sometimes, this can be really troublesome, especially when you try to send an important message or proceed with a financial transaction. There are many reasons that can lead mobile applications to crashes—and the causes are not always tractable. This blog entry discusses the causes of application crashes in mobile devices, based on the examination of a corpus of crash reports from Android applications .