# トイレの音が気にる時の流水音再生アプリWaterSound vs HITOMI NAVI

The clearest difference is ads: HITOMI NAVI at none against トイレの音が気にる時の流水音再生アプリWaterSound's shown. HITOMI NAVI also leads on update cadence (every 3 months vs every 133 months) and iOS requirement (9.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

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

トイレの音が気にる時の流水音再生アプリWaterSound ships an update every 133 months, HITOMI NAVI every 3 months. Both last shipped on November 2, 2026.

## The numbers

| Metric | トイレの音が気にる時の流水音再生アプリWaterSound | HITOMI NAVI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/watersound/id1055120059/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 85.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 133 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 12 MB | 30 MB |
| Requires iOS | 17.0 | **9.0** |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yuya Fujiwara](https://appshunter.io/developer/718282158) | [Alcon Japan Ltd.](https://appshunter.io/developer/492066818) |

## What reviewers say

### トイレの音が気にる時の流水音再生アプリWaterSound

[App page](https://appshunter.io/ios/app/watersound/id1055120059)

This app provides soothing sound effects to mask bathroom noises, offering peace of mind in public restrooms or when facilities lack soundproofing. It features simple, touchless controls and continuous playback, with various sound options available.

**Highlights:** Simple and easy operation, Touchless ON/OFF control, Endless sound playback, Multiple sound options, Hygenic operation

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### HITOMI NAVI

[App page](https://appshunter.io/ios/app/hitomi-navi/id1069583038)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is トイレの音が気にる時の流水音再生アプリWaterSound free?

トイレの音が気にる時の流水音再生アプリWaterSound is free to download, with no in-app purchases.

### Is HITOMI NAVI free?

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

### Do トイレの音が気にる時の流水音再生アプリWaterSound or HITOMI NAVI have ads?

トイレの音が気にる時の流水音再生アプリWaterSound shows ads; HITOMI NAVI does not.

### Which is updated more often, トイレの音が気にる時の流水音再生アプリWaterSound or HITOMI NAVI?

トイレの音が気にる時の流水音再生アプリWaterSound ships an update every 133 months, and HITOMI NAVI every 3 months. Most recently, トイレの音が気にる時の流水音再生アプリWaterSound was updated on November 2, 2026 and HITOMI NAVI on November 2, 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.*