Generation and segregation of mobile device biometric application template storage is described. Applications request a memory domain within mobile device storage for storing enrolled templates in the domain. The application calls a secure API associated with the biometric driver and software of the mobile device. As a result, the biometric driver and software does not search a number of domains to locate the enrolled templates that correspond to the mobile application or search all enrolled templates stored in memory. The mobile device applications maintain control of the storage domain and the template. The enrolled template may only be deleted through the controlling mobile device application.