Hey everyone, maker here. I kept waking up not knowing if I'd snored, coughed all night, or slept through it fine, and every app that claimed to answer that wanted a wearable or a subscription before it would tell me anything. So I built Nagi: it records your night with just your phone's own microphone, no extra hardware, and plays back the loudest moments in the morning so you actually hear what happened. Everything is processed on the device, nothing is uploaded. If you already wear a watch or ring at night, its sleep data shows alongside the sound, so you get the "what happened" and the "how you slept" in one place, with trends and history over time. Building it from Japan first, where snoring and hay fever season drive a lot of the search volume that most sleep apps in English miss. Free to record. Would love to hear what you think, and happy to answer anything about the on-device processing or the Japan-first approach.

Nagi

Record your night, sound and sleep score, with your phone

Record your night, sound and sleep score, with your phone