# Under Construction Ext vs Cube Odyssey

The clearest difference is update cadence: Cube Odyssey at daily against Under Construction Ext's every 10 months. Under Construction Ext's advantage is iOS requirement (12.0 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.

Under Construction Ext ships an update every 10 months, Cube Odyssey daily. The most recent releases landed on September 18, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | Under Construction Ext | Cube Odyssey |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Daily** |
| Size | 29 MB | 104 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ryo itou](https://appshunter.io/developer/1435019729) | [kitamura hira](https://appshunter.io/developer/324426988) |

## What reviewers say

### Under Construction Ext

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Cube Odyssey

[App page](https://appshunter.io/ios/app/cube-odyssey/id6680155351)

**Features:** macOS Compatibility

**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 Cube Odyssey free?

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

### Do Under Construction Ext or Cube Odyssey have ads?

Neither Under Construction Ext nor Cube Odyssey shows ads.

### Which is updated more often, Under Construction Ext or Cube Odyssey?

Under Construction Ext ships an update every 10 months, and Cube Odyssey daily. Most recently, Under Construction Ext was updated on September 18, 2026 and Cube Odyssey on September 6, 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.*