# Build Up!! vs Block Stack

The clearest difference is review sentiment: Block Stack at 100% against Build Up!!'s 34%. Block Stack also leads on rating (5.0 vs 4.5) and in-app purchases (none vs 1). Build Up!!'s advantage is ratings volume (16K vs 3) and device support (3 vs 1). On price and update cadence there is nothing between them.

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

Block Stack holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Build Up!! has 16K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 34% of Build Up!!'s written reviews are positive against 100% of Block Stack's.

Build Up!! ships an update fortnightly, Block Stack every 10 days. The most recent releases landed on September 24, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Build Up!! | Block Stack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (16K ratings)](https://appshunter.io/ios/app/build-up/id1453032346/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/block-stack-tower-physics/id6759821751/reviews)** |
| Number of ratings | **16K** | 3 |
| Positive reviews | 34.3% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 10 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 266 MB | 1 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Voodoo](https://appshunter.io/developer/714804730) | [CyberGame Limited](https://appshunter.io/developer/1778824442) |

## 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


### Block Stack

[App page](https://appshunter.io/ios/app/block-stack-tower-physics/id6759821751)

A physics-based stacking game where you build towers as high as possible without letting them fall. Experience realistic gravity and tension as an adaptive algorithm challenges your skill level with increasingly complex block shapes.

**Highlights:** Realistic physics simulation, Adaptive difficulty algorithm, Variety of block shapes, One-handed portrait play, Haptic feedback, Auto-save functionality

**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 Block Stack free?

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

### Which has better reviews, Build Up!! or Block Stack?

Block Stack is rated higher. Build Up!! averages 4.5 out of 5 from 16K ratings, while Block Stack averages 5.0 from 3 ratings.

### Do Build Up!! or Block Stack have ads?

Build Up!! shows ads; Block Stack does not.

### Which is updated more often, Build Up!! or Block Stack?

Build Up!! ships an update fortnightly, and Block Stack every 10 days. Most recently, Build Up!! was updated on September 24, 2026 and Block Stack on September 12, 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.*