# Under Construction Ext vs Ace Tower

The clearest difference is update cadence: Ace Tower at every 3 months against Under Construction Ext's every 10 months. Under Construction Ext's advantage is iOS requirement (12.0 vs 15.1). 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.

Under Construction Ext ships an update every 10 months, Ace Tower every 3 months. The most recent releases landed on September 18, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Under Construction Ext | Ace Tower |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 months** |
| Size | 29 MB | 190 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ryo itou](https://appshunter.io/developer/1435019729) | [Ophir Atar](https://appshunter.io/developer/978264941) |

## What reviewers say

### Under Construction Ext

[App page](https://appshunter.io/ios/app/under-construction-ext/id1461739765)

**Features:** macOS Compatibility

**In-app purchases:** none


### Ace Tower

[App page](https://appshunter.io/ios/app/ace-tower/id6761585064)

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

**In-app purchases:** none


## Frequently asked questions

### Is Under Construction Ext free?

Under Construction Ext is free to download, with no in-app purchases.

### Is Ace Tower free?

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

### Do Under Construction Ext or Ace Tower have ads?

Neither Under Construction Ext nor Ace Tower shows ads.

### Which is updated more often, Under Construction Ext or Ace Tower?

Under Construction Ext ships an update every 10 months, and Ace Tower every 3 months. Most recently, Under Construction Ext was updated on September 18, 2026 and Ace Tower on September 10, 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.*