# Just Timer Stopwatch vs Underwater Stopwatch

The clearest difference is device support: Underwater Stopwatch at 2 against Just Timer Stopwatch's —. Just Timer Stopwatch's advantage is iOS requirement (9.0 vs 18.0). On price and in-app purchases there is nothing between them.

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

## The numbers

| Metric | Just Timer Stopwatch | Underwater Stopwatch |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 3 days |
| Size | 10 MB | 4 MB |
| Requires iOS | **9.0** | 18.0 |
| Devices | — | **iPhone, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Young Hwi Cho](https://appshunter.io/developer/1088753911) | [Vlad Topala](https://appshunter.io/developer/6783263834) |

## What reviewers say

### Just Timer Stopwatch

[App page](https://appshunter.io/ios/app/just-timer-stopwatch/id1091451065)

**In-app purchases:** none


### Underwater Stopwatch

[App page](https://appshunter.io/ios/app/underwater-stopwatch/id6783263832)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Just Timer Stopwatch free?

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

### Is Underwater Stopwatch free?

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

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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.*