# STAmaster vs Interval Timer ~ HIIT & Tabata

The clearest difference is ads: STAmaster at none against Interval Timer ~ HIIT & Tabata's shown. Interval Timer ~ HIIT & Tabata's advantage is update cadence (every 2 days vs every 2 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

STAmaster ships an update every 2 weeks, Interval Timer ~ HIIT & Tabata every 2 days. The most recent releases landed on October 25, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | STAmaster | Interval Timer ~ HIIT & Tabata |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Size | 7 MB | 9 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [FAIZAL FIKHRI ZAKARIA](https://appshunter.io/developer/1884698881) | [manabu ueda](https://appshunter.io/developer/1606163236) |

## What reviewers say

### STAmaster

[App page](https://appshunter.io/ios/app/stamaster-apnea-trainer/id6760490272)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Interval Timer ~ HIIT & Tabata

[App page](https://appshunter.io/ios/app/interval-timer-hiit-and-tabata/id6762538816)

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

**In-app purchases:** none


## Frequently asked questions

### Is STAmaster free?

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

### Is Interval Timer ~ HIIT & Tabata free?

Interval Timer ~ HIIT & Tabata is free to download, with no in-app purchases.

### Do STAmaster or Interval Timer ~ HIIT & Tabata have ads?

Interval Timer ~ HIIT & Tabata shows ads; STAmaster does not.

### Which is updated more often, STAmaster or Interval Timer ~ HIIT & Tabata?

STAmaster ships an update every 2 weeks, and Interval Timer ~ HIIT & Tabata every 2 days. Most recently, STAmaster was updated on October 25, 2026 and Interval Timer ~ HIIT & Tabata on November 5, 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.*