# Pool Clock vs 筋トレヒストリー

The clearest difference is price: 筋トレヒストリー at Free against Pool Clock's $0.99. 筋トレヒストリー also leads on update cadence (every 3 days vs every 25 months). Pool Clock's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 16.2). On ads and in-app purchases there is nothing between them.

筋トレヒストリー is free to download; Pool Clock costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Pool Clock ships an update every 25 months, 筋トレヒストリー every 3 days. The most recent releases landed on September 13, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Pool Clock | 筋トレヒストリー |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[3.8 (4 ratings)](https://appshunter.io/ios/app/pool-clock/id1462481623/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 25 months | **Every 3 days** |
| Monetization | Paid | — |
| Size | 3 MB | 5 MB |
| Requires iOS | **12.0** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sohta Itoh](https://appshunter.io/developer/965803614) | [Daijiro Hoshi](https://appshunter.io/developer/1813130455) |

## What reviewers say

### Pool Clock

[App page](https://appshunter.io/ios/app/pool-clock/id1462481623)

This app simulates a traditional swimming pace clock for interval training. It helps swimmers track intervals, set preparation times, and manage repetitions. Features include an optional digital clock and sound alerts.

**Highlights:** Interval training timer, Customizable interval repetitions, Preparation time setting, Optional digital clock display, Countdown beep sound, Screen stays on during use

**Features:** Vision Pro support

**In-app purchases:** none


### 筋トレヒストリー

[App page](https://appshunter.io/ios/app/id6745604705)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Pool Clock free?

Pool Clock costs $0.99, with no in-app purchases.

### Is 筋トレヒストリー free?

筋トレヒストリー is free to download, with no in-app purchases.

### Do Pool Clock or 筋トレヒストリー have ads?

Neither Pool Clock nor 筋トレヒストリー shows ads.

### Which is updated more often, Pool Clock or 筋トレヒストリー?

Pool Clock ships an update every 25 months, and 筋トレヒストリー every 3 days. Most recently, Pool Clock was updated on September 13, 2026 and 筋トレヒストリー on September 27, 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.*