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App Store Apps > Productivity > Nautilus: Focus & App Blocker
Nautilus: Focus & App Blocker icon

Nautilus: Focus & App Blocker

by HIROTO IGUCHI · Productivity · Free
On the App Store since July 2026 · Data updated 2026-11-02

Nautilus: Focus & App Blocker is made and published by HIROTO IGUCHI. AppBrain is an independent app data site and isn't affiliated with HIROTO IGUCHI. The app name, icon, screenshots and description belong to HIROTO IGUCHI and are shown as published on the App Store.

AppBrain's verdict

Last updated
October 28, 2026
Official page on the App Store

Rankings

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App Store Rankings for Nautilus: Focus & App Blocker

This app is not ranked

Competitors

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Releases

Updates seen on the App Store
Version
2.4
Launched
July 2026

No changelog data

User feedback

Ratings and reviews on the App Store

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Technology

Found in the app by AppBrain
Price
Free
App size
36.3 MB
Content rating
Everyone

Technologies used by Nautilus: Focus & App Blocker

About the app and developer

About Nautilus: Focus & App Blocker

Nautilus: Focus & App Blocker is a productivity app developed by HIROTO IGUCHI.

User Ratings

The app has no ratings yet.

App Information

Nautilus: Focus & App Blocker is freely available from the App Store. The app size is 36.31 MB. The latest version available is 2.4. The last update was on October 28, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on the App Store since July 2026.

Developer information for HIROTO IGUCHI

HIROTO IGUCHI

Address:

Frequently asked questions about Nautilus: Focus & App Blocker

Is Nautilus: Focus & App Blocker free?

Yes. Nautilus: Focus & App Blocker is free on the App Store.

Is Nautilus: Focus & App Blocker still available?

Yes. Nautilus: Focus & App Blocker is on the App Store, and the last update we saw was on October 28, 2026.

How large is Nautilus: Focus & App Blocker?

Nautilus: Focus & App Blocker is 36.31 MB.

Is Nautilus: Focus & App Blocker suitable for children?

App Store rates the content of Nautilus: Focus & App Blocker as suitable for everyone.

Who made Nautilus: Focus & App Blocker?

Nautilus: Focus & App Blocker was developed by HIROTO IGUCHI. It is listed in the productivity category on the App Store.

What are the best alternatives to Nautilus: Focus & App Blocker?

People looking at Nautilus: Focus & App Blocker also look at these productivity apps: AppendX, ClipVault Snippet Box, Lock in - Reclaim your time, Focus Royale, Focus4Life: Pomodoro Timer.

Share Nautilus: Focus & App Blocker

Store listing

By HIROTO IGUCHI, from the App Store
Nautilus: Focus & App Blocker Screenshot 1 of 7
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Screenshots by HIROTO IGUCHI, from the the App Store listing
Description by HIROTO IGUCHI Written by the developer, not by AppBrain. Click to read.
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 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.
Official page on the App Store
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