# Kozui vs Ground Up Construction

The clearest difference is update cadence: Kozui at every 3 months against Ground Up Construction's every 83 months. Ground Up Construction's advantage is iOS requirement (12.0 vs 15.6). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.4 for Kozui against 4.5 for Ground Up Construction. Both are backed by a comparable volume of ratings — 5 and 2 respectively.

Kozui ships an update every 3 months, Ground Up Construction every 83 months. The most recent releases landed on October 18, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Kozui | Ground Up Construction |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (5 ratings)](https://appshunter.io/ios/app/kozui/id1378563689/reviews) | **[4.5 (2 ratings)](https://appshunter.io/ios/app/ground-up-construction/id1445728381/reviews)** |
| Number of ratings | **5** | 2 |
| Positive reviews | 85.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 83 months |
| Monetization | Free | Free |
| Size | 23 MB | 92 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sean O'Connor](https://appshunter.io/developer/305324345) | [Simcoach Games](https://appshunter.io/developer/1682126328) |

## What reviewers say

### Kozui

[App page](https://appshunter.io/ios/app/kozui/id1378563689)

Engage in fast-paced, mind-melting puzzle challenges against a samurai. Test your reflexes and cognitive skills to see how long you can endure the escalating difficulty.

**Highlights:** Fast-paced puzzles, Mind-melting challenges, Samurai opponent, Endurance testing, Cognitive skill development

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

**In-app purchases:** none


### Ground Up Construction

[App page](https://appshunter.io/ios/app/ground-up-construction/id1445728381)

Engage in a construction simulation where you follow blueprints to build various commercial structures. Master 100 challenging puzzles, from convenience stores to skyscrapers, and learn about different construction trades. Mistakes require starting over, but successful builds bring structures to life.

**Highlights:** 100 levels of increasing difficulty, Challenging puzzle-style gameplay, Transforming levels upon completion, Information on construction trades, Links to career opportunities

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Kozui free?

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

### Is Ground Up Construction free?

Ground Up Construction is free to download, with no in-app purchases.

### Which has better reviews, Kozui or Ground Up Construction?

Ground Up Construction is rated higher. Kozui averages 4.4 out of 5 from 5 ratings, while Ground Up Construction averages 4.5 from 2 ratings.

### Do Kozui or Ground Up Construction have ads?

Neither Kozui nor Ground Up Construction shows ads.

### Which is updated more often, Kozui or Ground Up Construction?

Kozui ships an update every 3 months, and Ground Up Construction every 83 months. Most recently, Kozui was updated on October 18, 2026 and Ground Up Construction 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.*