Every year, millions of people suffer brain injuries, yet diagnosis and treatment guidance is limited by traditional healthcare options. Confidence aims to improve the experience of brain injury patients and healthcare professionals by using a patient’s smartphone data to provide optimized and personalized care. After a suspected or known brain injury, healthcare professionals will direct patients to download the Confidence application to their smartphones, which will allow the application to locally access and analyze the patient’s data to analyze for changes correlated to brain injury, such as cognition, mobility, emotional stability, and general activity. A summary of this information will be provided to the healthcare team so it can be used to assist in diagnosis and guide treatment options. Ultimately, Confidence will give each patient customized rehabilitation that increases their recovery and opportunities to continue thriving in their community.