# Mom's Timer vs 音耳せん

The clearest difference is ads: Mom's Timer at none against 音耳せん's shown. 音耳せん's advantage is update cadence (every 5 weeks vs every 37 months) and iOS requirement (13.0 vs 15.6). 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.

Mom's Timer ships an update every 37 months, 音耳せん every 5 weeks. Both last shipped on November 11, 2026.

## The numbers

| Metric | Mom's Timer | 音耳せん |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 37 months | **Every 5 weeks** |
| Size | 2 MB | 29 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YUBI](https://appshunter.io/developer/555804746) | [koji kamogawa](https://appshunter.io/developer/1488210713) |

## What reviewers say

### Mom's Timer

[App page](https://appshunter.io/ios/app/moms-timer/id1230221153)

**Features:** macOS Compatibility

**In-app purchases:** none


### 音耳せん

[App page](https://appshunter.io/ios/app/id1496478545)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mom's Timer free?

Mom's Timer is free to download, with no in-app purchases.

### Is 音耳せん free?

音耳せん is free to download, with no in-app purchases.

### Do Mom's Timer or 音耳せん have ads?

音耳せん shows ads; Mom's Timer does not.

### Which is updated more often, Mom's Timer or 音耳せん?

Mom's Timer ships an update every 37 months, and 音耳せん every 5 weeks. Most recently, Mom's Timer was updated on November 11, 2026 and 音耳せん on November 11, 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.*