# Kronos Studio vs Mariabs · Interval Timer

The clearest difference is in-app purchases: Mariabs · Interval Timer at none against Kronos Studio's 2. Kronos Studio's advantage is update cadence (every 2 days vs every 6 days). On price, ads, 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. Mariabs · Interval Timer asks for nothing beyond the download.

Kronos Studio ships an update every 2 days, Mariabs · Interval Timer every 6 days. The most recent releases landed on September 18, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Kronos Studio | Mariabs · Interval Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 6 days |
| Size | 97 MB | 4 MB |
| Requires iOS | 16.4 | **16.2** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 12+ | 4+ |
| Developer | [Muller Labs LLC](https://appshunter.io/developer/1884923229) | [PER MAGNE HELSETH](https://appshunter.io/developer/1895962879) |

## 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 |


### Mariabs · Interval Timer

[App page](https://appshunter.io/ios/app/mariabs-interval-timer/id6765472133)

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

**In-app purchases:** none


## Frequently asked questions

### Is Kronos Studio free?

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

### Is Mariabs · Interval Timer free?

Mariabs · Interval Timer is free to download, with no in-app purchases.

### Do Kronos Studio or Mariabs · Interval Timer have ads?

Neither Kronos Studio nor Mariabs · Interval Timer shows ads.

### Which is updated more often, Kronos Studio or Mariabs · Interval Timer?

Kronos Studio ships an update every 2 days, and Mariabs · Interval Timer every 6 days. Most recently, Kronos Studio was updated on September 18, 2026 and Mariabs · Interval Timer on September 21, 2026.

---

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