A focus timer for knowledge workers. One tap blocks distracting apps at the OS level (Screen Time API). Dump a random thought in 3 seconds from the Dynamic Island. Surface - your session is already a dive log. No streaks, no guilt, just depth. Free on iOS 18+.
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Maker
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Hey Product Hunt - I'm Hiroto, a first-year software engineer in Japan. I built Nautilus because every focus app I tried was made for students cramming for exams, not working adults juggling a day job and side projects.
Nautilus went live on the App Store this week (iOS 18+, free) - the public 1.0 after weeks in TestFlight beta.
What makes it different:
- OS-level blocking via the Screen Time API (FamilyControls) - not a gentle reminder. When you dive, your chosen apps are shielded and opening one shows a custom screen: "Diving now. Surfacing in N min." (You can still lift it from iOS Settings > Screen Time if you really need to - it puts distance between you and the temptation, it doesn't trap you.)
- 3-second thought capture from the Dynamic Island or Lock Screen - the "oh, I need to do that" that hits mid-session gets caught without breaking focus, and comes back when you surface.
- Auto dive-log - surface and your session is already a journal entry: depth, duration, and the thoughts you captured. No manual logging.
The depth metric: you go deeper the longer you focus without reaching for a blocked app. ~50 minutes undisturbed = about 50m deep. It only ever increases - no streaks, no red badges, no guilt on a zero-minute day. Just honest data.
I built this for myself first. What's the one thing that breaks your focus that no app has solved yet? Tell me below - I read every reply.
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the dynamic island thought dump is genuinely clever, caught myself actually using it instead of reaching for my phone. would love to see a way to review past sessions though
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the OS-level blocking is genuinely the killer feature here, hard to fake that kind of discipline. one thing i'd love though is some kind of "dive spot" history so i can see which apps or sites actually break my focus most often over time. basically a heatmap of where my attention leaks. would make the surface view way more useful without adding any guilt nonsense
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the dynamic island thought dump is genuinely clever, way faster than opening a notes app mid-session
the dynamic island thought dump is genuinely clever, caught myself actually using it instead of reaching for my phone. would love to see a way to review past sessions though
the OS-level blocking is genuinely the killer feature here, hard to fake that kind of discipline. one thing i'd love though is some kind of "dive spot" history so i can see which apps or sites actually break my focus most often over time. basically a heatmap of where my attention leaks. would make the surface view way more useful without adding any guilt nonsense
the dynamic island thought dump is genuinely clever, way faster than opening a notes app mid-session