# MyBuilding vs MySii

The clearest difference is iOS requirement: MyBuilding at 13.0 against MySii's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

MyBuilding ships an update every 6 weeks, MySii monthly. The most recent releases landed on September 24, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | MyBuilding | MySii |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Size | 20 MB | 249 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [SPACE TECHNOLOGY INTEGRATOR SP Z O O](https://appshunter.io/developer/1504038820) | [Sii sp. z o.o.](https://appshunter.io/developer/961065482) |

## What reviewers say

### MyBuilding

[App page](https://appshunter.io/ios/app/mybuilding/id1525713450)

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

**In-app purchases:** none


### MySii

[App page](https://appshunter.io/ios/app/mysii/id6445954726)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MyBuilding free?

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

### Is MySii free?

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

### Do MyBuilding or MySii have ads?

Neither MyBuilding nor MySii shows ads.

### Which is updated more often, MyBuilding or MySii?

MyBuilding ships an update every 6 weeks, and MySii monthly. Most recently, MyBuilding was updated on September 24, 2026 and MySii on September 8, 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.*