# Void Stacker vs Sky Stack

The clearest difference is update cadence: Sky Stack at daily against Void Stacker's every 5 days. Sky Stack also leads on iOS requirement (16.0 vs 18.0). 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.

Void Stacker ships an update every 5 days, Sky Stack daily. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Void Stacker | Sky Stack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 5 days | **Daily** |
| Size | 8 MB | 5 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yuma Ueno](https://appshunter.io/developer/1842015188) | [Ding-Yao Jheng](https://appshunter.io/developer/6799717682) |

## What reviewers say

### Void Stacker

[App page](https://appshunter.io/ios/app/void-stacker-block-tower-game/id6781205211)

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

**In-app purchases:** none


### Sky Stack

[App page](https://appshunter.io/ios/app/sky-stack-one-tap-tower/id6800795670)

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

**In-app purchases:** none


## Frequently asked questions

### Is Void Stacker free?

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

### Is Sky Stack free?

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

### Do Void Stacker or Sky Stack have ads?

Both Void Stacker and Sky Stack show ads.

### Which is updated more often, Void Stacker or Sky Stack?

Void Stacker ships an update every 5 days, and Sky Stack daily. Most recently, Void Stacker was updated on October 7, 2026 and Sky Stack on October 8, 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.*