# Kronos Studio vs Interval Timer by STRNTH

The clearest difference is ads: Kronos Studio at none against Interval Timer by STRNTH's shown. Kronos Studio also leads on update cadence (every 2 days vs every 10 days). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Kronos Studio sells 2 in-app purchases, starting at $7.99 per month and Interval Timer by STRNTH sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Kronos Studio ships an update every 2 days, Interval Timer by STRNTH every 10 days. Both last shipped on September 18, 2026.

## The numbers

| Metric | Kronos Studio | Interval Timer by STRNTH |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 10 days |
| Size | 97 MB | 55 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad, Apple Watch | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 12+ | 12+ |
| Developer | [Muller Labs LLC](https://appshunter.io/developer/1884923229) | [Next Big Leap Ltd](https://appshunter.io/developer/369344938) |

## What reviewers say

### Kronos Studio

[App page](https://appshunter.io/ios/app/kronos-studio/id6762472031)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kronos Pro Monthly | $7.99 | per month |
| Kronos Pro Yearly | $79.99 | per year |


### Interval Timer by STRNTH

[App page](https://appshunter.io/ios/app/interval-timer-by-strnth/id6787253056)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $9.99 | one-time |


## Frequently asked questions

### Is Kronos Studio free?

Kronos Studio is free to download, with in-app purchases available.

### Is Interval Timer by STRNTH free?

Interval Timer by STRNTH is free to download, with in-app purchases available.

### Do Kronos Studio or Interval Timer by STRNTH have ads?

Interval Timer by STRNTH shows ads; Kronos Studio does not.

### Which is updated more often, Kronos Studio or Interval Timer by STRNTH?

Kronos Studio ships an update every 2 days, and Interval Timer by STRNTH every 10 days. Most recently, Kronos Studio was updated on September 18, 2026 and Interval Timer by STRNTH on September 18, 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.*