# Nautilus vs Tsumoru

The clearest difference is iOS requirement: Nautilus at 18.0 against Tsumoru's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 6 days. The most recent releases landed on November 11, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Nautilus | Tsumoru |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 days | Every 6 days |
| Size | 36 MB | 7 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [HIROTO IGUCHI](https://appshunter.io/developer/1860756373) | [Yuta Tamaru](https://appshunter.io/developer/1785494217) |

## What reviewers say

### Nautilus

[App page](https://appshunter.io/ios/app/nautilus-focus-and-app-blocker/id6780439827)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Tsumoru

[App page](https://appshunter.io/ios/app/tsumoru-practice-timer/id6810985196)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Nautilus free?

Nautilus is free to download, with no in-app purchases.

### Is Tsumoru free?

Tsumoru is free to download, with no in-app purchases.

### Do Nautilus or Tsumoru have ads?

Neither Nautilus nor Tsumoru shows ads.

### Which is updated more often, Nautilus or Tsumoru?

Nautilus ships an update every 6 days, and Tsumoru every 6 days. Most recently, Nautilus was updated on November 11, 2026 and Tsumoru on November 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*