TuneFork is software audio personalization technology that optimizes users' mobile sound system. TuneFork guides users through a simple test to characterize their hearing. Based on the results of the test, TuneFork tailors a precise audio filter for every user, perfectly matching their hearing to their sound system. TuneFork can be integrated into any operating system and optimizes all audio content including phone calls, rings and alerts, voice notifications, voice messages, music, and videos. The application is particularly beneficial for seniors and users with hearing loss. TuneFork's vision is to offer improved quality of life through improved quality of hearing.