# freedive STA vs STAmaster

The clearest difference is ads: STAmaster at none against freedive STA's shown. On price, update cadence, 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.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | freedive STA | STAmaster |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Size | 30 MB | 7 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, Apple Watch** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Stridelab LLC](https://appshunter.io/developer/1794462570) | [FAIZAL FIKHRI ZAKARIA](https://appshunter.io/developer/1884698881) |

## What reviewers say

### freedive STA

[App page](https://appshunter.io/ios/app/freedive-sta/id6741502506)

**In-app purchases:** none


### STAmaster

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

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

**In-app purchases:** none


## Frequently asked questions

### Is freedive STA free?

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

### Is STAmaster free?

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

### Do freedive STA or STAmaster have ads?

freedive STA shows ads; STAmaster does not.

### Which is updated more often, freedive STA or STAmaster?

freedive STA ships an update every 2 weeks, and STAmaster every 2 weeks. Most recently, freedive STA was updated on November 4, 2026 and STAmaster 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.*