VigilantEar is an advanced, ultra-high-performance iOS acoustic research and accessibility tool engineered to provide real-time directional and spatial awareness for the deaf and hard-of-hearing (D/HH) community. Traditional sound recognition software only identifies what a sound is; VigilantEar acts as a comprehensive tactical radar, combining edge-computed machine learning with sophisticated acoustic physics to track exactly where a sound originates, its estimated distance, and its absolute path trajectory.