Lisnen builds solutions for people with hearing loss who need to know what’s calling for their immediate attention. The Lisnen app is a smart hearing assistant produced for deaf and hard of hearing individuals for situational awareness using their smart devices. Hearing loss individuals face apparent as well as subtle, systematic, and safety challenges every day in a world predicated on hearing. Lisnen addresses these inequalities with brand-agnostic software using artificial intelligence, which detects, in real-time, fire alarms, sirens, door knocks, baby cries, car horns, and bell sounds, conveniently from a smartphone. Lisnen users receive notifications through their sense of touch (vibration) and sight (flashing lights). Their app will pair with other smart devices to give a multi-sensory experience for safety and convenience anywhere.