Hi Product Hunt, I’m Shoji, the maker of Night Event Log. I built this app around one simple question: “What happened while I was asleep?” Maybe you heard a sound at night. Maybe something in the room moved. Maybe your pet was active. Maybe your charging cable was disconnected. Maybe you stayed in a hotel and wanted a simple way to check what changed overnight. Night Event Log is an iPhone app that turns those small night-time questions into a simple morning timeline. The key feature is on-device AI. When something is detected, the app takes a photo with the rear camera and generates a short AI note directly on the iPhone. For example: “Loud sound detected.” “A white object is visible near the floor.” “A person is not clearly visible.” “The room scene may have changed.” The goal is not to scare the user or make strong claims. The AI simply helps describe what the photo shows, so you do not have to inspect every image yourself. This makes the app feel very different from a regular camera or monitoring app. It is not continuous video recording. It is not a security camera. It is not a medical or sleep diagnosis app. It is a private night event log with AI-generated notes. Privacy was very important because the app may be used in bedrooms, hotel rooms, pet rooms, or other personal spaces. So the app is designed this way: - AI notes are generated on-device - photos are not uploaded to the cloud - no external server processing - no saved audio recordings - photos are stored inside the app, not in the Photos library - the app works only while open in the foreground I wanted AI to be useful in a quiet, practical way: not as a chatbot, not as a camera that judges danger, but as a small helper that explains what your iPhone captured while you were asleep. You open the app before sleeping, point the rear camera toward the area you want to log, and leave it running. In the morning, you can check a timeline of events with photos and short AI notes. I would love your feedback on the concept, positioning, screenshots, and whether the AI value is clear. Thank you!

Night Event Log

On-device AI notes for night events

On-device AI notes for night events