# Workout & Rest Interval Timer vs Stopwatch Skull

The clearest difference is ads: Stopwatch Skull at none against Workout & Rest Interval Timer's shown. Stopwatch Skull also leads on update cadence (daily vs every 5 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Workout & Rest Interval Timer ships an update every 5 weeks, Stopwatch Skull daily. The most recent releases landed on September 10, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Workout & Rest Interval Timer | Stopwatch Skull |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Daily** |
| Size | 33 MB | 40 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Seulki Eom](https://appshunter.io/developer/1718927408) | [Hasancan Cakicioglu](https://appshunter.io/developer/1798437420) |

## What reviewers say

### Workout & Rest Interval Timer

[App page](https://appshunter.io/ios/app/workout-and-rest-interval-timer/id6737192266)

**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 Workout & Rest Interval Timer free?

Workout & Rest Interval Timer 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 Workout & Rest Interval Timer or Stopwatch Skull have ads?

Workout & Rest Interval Timer shows ads; Stopwatch Skull does not.

### Which is updated more often, Workout & Rest Interval Timer or Stopwatch Skull?

Workout & Rest Interval Timer ships an update every 5 weeks, and Stopwatch Skull daily. Most recently, Workout & Rest Interval Timer was updated on September 10, 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.*