Test anxiety is a problem student all over the world face. Research has shown that cognitive behavioral therapy can be beneficial in alleviating symptoms connected to test anxiety. Cognitive behavioral therapy is thought based and therefore mobile apps can be suitable tools to deliver therapy directly to students at their own leisure. I conducted a usability and field- study to examine the effect a self-help app could have on students suffering from test anxiety. Four participants were recruited for the field study, each trying the application for a week. Results showed that cognitive behavioral exercises, and behavioral exercises has potential to ground and calm users, thus mitigating anxiety. In the discussion I relate the results to other studies and conclude that a study monitoring participants physiological state would be beneficial moving forward.