Nautilus: Focus & App Blocker
Timer that blocks distractions
Free · Designed for iPad. Not verified for macOS.
For the hours you spend studying or working alone. While you dive, the apps you chose truly won't open. Exams, certifications, deep work included.
Nautilus folds three things into one action: dive.
REAL BLOCKING, AT THE OS LEVEL
Tap to dive, and the apps you chose (social, YouTube, etc.) are shielded on the spot via Screen Time. Not a reminder — while you're diving, those apps genuinely won't open. Block sets change per focus type (e.g. Reading vs. Coding).
DUMP A DISTRACTION IN 3 SECONDS
A stray "I need to do that" mid-session? Jot it down from the Lock Screen or Dynamic Island in about 3 seconds, without leaving focus. Everything you dumped is waiting for you when you surface.
SURFACE, AND IT'S ALREADY A JOURNAL
When you surface, that session becomes a log entry automatically — what you dove into, how long, what distractions you dumped. No manual logging.
DESIGNED FOR ZERO GUILT
No streaks. No red badges. A zero-minute day isn't punished. "Depth," the number that reflects your focus quality, only ever goes up.
Blocking relies on the device's Screen Time framework.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- After surfacing, you can tap a fish you caught to open its entry in Species. Going back returns you to the list.
- Rarer fish are now easier to pick out in the list.
- The sequence that plays for a rare catch now shows the fish itself.
- Swipe the stats card in Dive log to look back at past weeks and months.
The developer, HIROTO IGUCHI, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- User Content
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- HIROTO IGUCHI
- Size
- 36.1 MB
- Category
- Productivity
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - iPad
Requires iPadOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
English and 5 more
- English, Japanese, Korean, Portuguese, Spanish, Traditional Chinese
- Age Rating
4+
- 4+
- Copyright
- © 2026 Hiroto Iguchi