# BuildaPay Site Engineer vs Mstnd

The clearest difference is update cadence: Mstnd at daily against BuildaPay Site Engineer's every 3 weeks. BuildaPay Site Engineer's advantage is iOS requirement (13.0 vs 15.0). On price, ads, 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.

BuildaPay Site Engineer ships an update every 3 weeks, Mstnd daily. The most recent releases landed on October 8, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | BuildaPay Site Engineer | Mstnd |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Daily** |
| Size | 27 MB | 37 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MIVORS CORPORATION](https://appshunter.io/developer/1519134777) | [UC TECH](https://appshunter.io/developer/1896647732) |

## What reviewers say

### BuildaPay Site Engineer

[App page](https://appshunter.io/ios/app/buildapay-site-engineer/id6762019459)

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

**In-app purchases:** none


### Mstnd

[App page](https://appshunter.io/ios/app/mstnd/id6769295346)

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

**In-app purchases:** none


## Frequently asked questions

### Is BuildaPay Site Engineer free?

BuildaPay Site Engineer is free to download, with no in-app purchases.

### Is Mstnd free?

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

### Do BuildaPay Site Engineer or Mstnd have ads?

Neither BuildaPay Site Engineer nor Mstnd shows ads.

### Which is updated more often, BuildaPay Site Engineer or Mstnd?

BuildaPay Site Engineer ships an update every 3 weeks, and Mstnd daily. Most recently, BuildaPay Site Engineer was updated on October 8, 2026 and Mstnd on October 17, 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.*