# Build Up!! vs Machine Challenge

The clearest difference is in-app purchases: Machine Challenge at none against Build Up!!'s 1. Machine Challenge also leads on iOS requirement (11.0 vs 14.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Build Up!! sells 1 one-off in-app purchase. Machine Challenge asks for nothing beyond the download.

Build Up!! ships an update fortnightly, Machine Challenge every 10 days. The most recent releases landed on September 27, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Build Up!! | Machine Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (16K ratings)](https://appshunter.io/ios/app/build-up/id1453032346/reviews)** | — |
| Number of ratings | **16K** | — |
| Positive reviews | 34.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Fortnightly | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 266 MB | 95 MB |
| Requires iOS | 14.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Voodoo](https://appshunter.io/developer/714804730) | [Huseyin Gulgen](https://appshunter.io/developer/1596459830) |

## What reviewers say

### Build Up!!

[App page](https://appshunter.io/ios/app/build-up/id1453032346)

Construct your tower as tall as possible by strategically placing building nodes. Collect more nodes as you ascend to reach crucial checkpoints and achieve new heights.

**Highlights:** Build structures high, Gather building nodes, Reach checkpoints, Ascend to new heights

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads. | $2.99 | one-time |

**What reviewers like**

- 👍 Simple and fun game
- 🚀 Runs well with no crashes
- 💰 Free to play

**What reviewers complain about**

- 💸 Excessive ads
- 🐛 Impossible or buggy levels
- 🔁 Repetitive gameplay

**Reported bugs**

- Rivet counter malfunction
- Levels regenerating incorrectly
- Tower physics issues

**Requested features**

- More level variety
- Ability to create custom maps
- Removal of perfect triangle requirement


### Machine Challenge

[App page](https://appshunter.io/ios/app/machine-challenge/id1623578726)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Build Up!! free?

Build Up!! is free to download, with in-app purchases available.

### Is Machine Challenge free?

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

### Do Build Up!! or Machine Challenge have ads?

Both Build Up!! and Machine Challenge show ads.

### Which is updated more often, Build Up!! or Machine Challenge?

Build Up!! ships an update fortnightly, and Machine Challenge every 10 days. Most recently, Build Up!! was updated on September 27, 2026 and Machine Challenge on September 9, 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.*