Lisnen

3 a.m. You're home. Alone. Your hearing aids are on the nightstand charging. Was that a knock? A siren? Or nothing at all? You have no way to tell... until later, when it's too late to matter. Most of the time, the world signals what needs your attention through sound: a knock, an alarm, someone calling your name. When you can't hear it, you don't get a second chance at that moment. Lisnen is built for that gap. It uses on-device sound detection to recognize sounds that matter nearby, and alerts you through vibration and visual cues, in real time, so you can act. Whether you: * Are in a space with no built-in accommodation * Take a break from wearing your hearing devices * Or just want your phone to have your back Lisnen fits into the life you already have. No new hardware. No rewiring your apartment. No waiting years for a guide dog. With Lisnen, you can: * Get fire alarm detection — free * Detect door knocks, alarms, and other alerts that need you * Get notified through vibration and visual signals * Move through your day without needing to ask anyone for help * Help train better detection by sharing sound recordings * Shape what we build next with your feedback * Manage your data and delete your account anytime We're not going to tell you it catches everything, every time. We're still building, and we're building it with you. But when something happens that needs you — you'll know. Start Lisnen. Learn more: https://lisnen.com/terms-conditions/