# Chrono Ultimate vs Underwater Stopwatch & Timer

The clearest difference is iOS requirement: Chrono Ultimate at 8.2 against Underwater Stopwatch & Timer's 18.0. 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.

## The numbers

| Metric | Chrono Ultimate | Underwater Stopwatch & Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 5 days |
| Size | 4 MB | 4 MB |
| Requires iOS | **8.2** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [VLADYSLAV YERSHOV](https://appshunter.io/developer/879767497) | [Softuki SRL](https://appshunter.io/developer/6783263834) |

## What reviewers say

### Chrono Ultimate

[App page](https://appshunter.io/ios/app/chrono-ultimate-stopwatch-timer-and-countdown/id1200972849)

**Features:** macOS Compatibility

**In-app purchases:** none


### Underwater Stopwatch & Timer

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

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

**In-app purchases:** none


## Frequently asked questions

### Is Chrono Ultimate free?

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

### Is Underwater Stopwatch & Timer free?

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

### Do Chrono Ultimate or Underwater Stopwatch & Timer have ads?

Neither Chrono Ultimate nor Underwater Stopwatch & Timer shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*