# Kronos Studio vs Just'a Tabata

The clearest difference is ads: Kronos Studio at none against Just'a Tabata's shown. Kronos Studio also leads on update cadence (every 2 days vs every 5 days) and iOS requirement (16.4 vs 26.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Kronos Studio sells 2 in-app purchases, starting at $8.99 per month and Just'a Tabata sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Kronos Studio ships an update every 2 days, Just'a Tabata every 5 days. The most recent releases landed on October 1, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Kronos Studio | Just'a Tabata |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 5 days |
| Size | 97 MB | 21 MB |
| Requires iOS | **16.4** | 26.0 |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 12+ | 4+ |
| Developer | [Muller Labs LLC](https://appshunter.io/developer/1884923229) | [Vinh Nguyen](https://appshunter.io/developer/1802304933) |

## 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 | $8.99 | per month |
| Kronos Pro Yearly | $49.99 | per year |


### Just'a Tabata

[App page](https://appshunter.io/ios/app/justa-tabata-a-workout-timer/id6789550194)

**Features:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $0.99 | per month |
| Pro Yearly | $4.99 | per year |
| Pro Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is Kronos Studio free?

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

### Is Just'a Tabata free?

Just'a Tabata is free to download, with in-app purchases available.

### Do Kronos Studio or Just'a Tabata have ads?

Just'a Tabata shows ads; Kronos Studio does not.

### Which is updated more often, Kronos Studio or Just'a Tabata?

Kronos Studio ships an update every 2 days, and Just'a Tabata every 5 days. Most recently, Kronos Studio was updated on October 1, 2026 and Just'a Tabata on September 29, 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.*