RecruitingDevice studyForecasting Seizures Using Intelligent Wearable Technology for Health TrackingThe goal of this interventional study is to develop a personalized seizure risk forecast tool in people with epilepsy. The main questions it aims to answer are: * can we develop a future seizure probabilities tool that is more accurate than chance based on the pattern and frequency of previous generalized tonic-clonic seizure (GTCS) events, as well as changes in physiological and behavioral variables. * does this tool improve the lives of people with epilepsy? Researchers will compare a group that does not have access to the forecast tool to a group that does and see if it is accurate and if people with it report that it improved their quality of life.