# RRタイマー vs UltraStop

The clearest difference is update cadence: UltraStop at every 12 months against RRタイマー's every 38 months. RRタイマー's advantage is iOS requirement (12.0 vs 15.0). On price, ads, 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.

RRタイマー ships an update every 38 months, UltraStop every 12 months. Both last shipped on September 19, 2026.

## The numbers

| Metric | RRタイマー | UltraStop |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 12 months** |
| Size | 30 MB | 22 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mika Hatakeyama](https://appshunter.io/developer/445272831) | [JUHWAN LEE](https://appshunter.io/developer/1703441721) |

## What reviewers say

### RRタイマー

[App page](https://appshunter.io/ios/app/rr/id1403856724)

**In-app purchases:** none


### UltraStop

[App page](https://appshunter.io/ios/app/ultrastop/id6740802633)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RRタイマー free?

RRタイマー is free to download, with no in-app purchases.

### Is UltraStop free?

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

### Do RRタイマー or UltraStop have ads?

Neither RRタイマー nor UltraStop shows ads.

### Which is updated more often, RRタイマー or UltraStop?

RRタイマー ships an update every 38 months, and UltraStop every 12 months. Most recently, RRタイマー was updated on September 19, 2026 and UltraStop on September 19, 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.*