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Night Event Log uses on-device AI to explain small events that happened while you slept. It captures event-based photos triggered by night sounds, iPhone movement, charging changes, or room changes, then adds short AI notes directly on your iPhone. No cloud upload, no saved audio recordings. From the maker of PoemCam, #5 Product of the Day.
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!
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About Night Event Log on Product Hunt
“On-device AI notes for night events”
Night Event Log was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #104 on the daily leaderboard. Night Event Log uses on-device AI to explain small events that happened while you slept. It captures event-based photos triggered by night sounds, iPhone movement, charging changes, or room changes, then adds short AI notes directly on your iPhone. No cloud upload, no saved audio recordings. From the maker of PoemCam, #5 Product of the Day.
Night Event Log was featured in iOS (110.5k followers), Privacy (11.2k followers) and Artificial Intelligence (473.1k followers) on Product Hunt. Together, these topics include over 150.4k products, making this a competitive space to launch in.
Who hunted Night Event Log?
Night Event Log was hunted by やりしょ. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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