# UltraStop vs Stopwatch Skull

The clearest difference is update cadence: Stopwatch Skull at daily against UltraStop's every 12 months. Stopwatch Skull also leads on 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.

UltraStop ships an update every 12 months, Stopwatch Skull daily. The most recent releases landed on May 19, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | UltraStop | Stopwatch Skull |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Daily** |
| Size | 22 MB | 40 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [JUHWAN LEE](https://appshunter.io/developer/1703441721) | [Hasancan Cakicioglu](https://appshunter.io/developer/1798437420) |

## What reviewers say

### UltraStop

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Stopwatch Skull

[App page](https://appshunter.io/ios/app/stopwatch-skull-timer/id6744737324)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is UltraStop free?

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

### Is Stopwatch Skull free?

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

### Do UltraStop or Stopwatch Skull have ads?

Neither UltraStop nor Stopwatch Skull shows ads.

### Which is updated more often, UltraStop or Stopwatch Skull?

UltraStop ships an update every 12 months, and Stopwatch Skull daily. Most recently, UltraStop was updated on May 19, 2026 and Stopwatch Skull on September 15, 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.*