# Stack 3D Block vs Spire

The clearest difference is in-app purchases: Spire at none against Stack 3D Block's 1. Stack 3D Block's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.4). On price and ads there is nothing between them.

Both are free to download. Stack 3D Block sells 1 one-off in-app purchase. Spire asks for nothing beyond the download.

## The numbers

| Metric | Stack 3D Block | Spire |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Size | 162 MB | 69 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [GAMEMAYA LLP](https://appshunter.io/developer/1771033035) | [Cristopher Guido](https://appshunter.io/developer/1849716676) |

## What reviewers say

### Stack 3D Block

[App page](https://appshunter.io/ios/app/stack-3d-block-tower-rise/id6754649083)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $6.99 | one-time |


### Spire

[App page](https://appshunter.io/ios/app/spire-tower-stack/id6781474812)

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

**In-app purchases:** none


## Frequently asked questions

### Is Stack 3D Block free?

Stack 3D Block is free to download, with in-app purchases available.

### Is Spire free?

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

### Do Stack 3D Block or Spire have ads?

Both Stack 3D Block and Spire show ads.

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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.*