# Endless Shape Stacker vs Sky Stack

The clearest difference is ads: Endless Shape Stacker at none against Sky Stack's shown. Sky Stack's advantage is update cadence (every 3 days vs every 6 months) and iOS requirement (15.0 vs 18.5). On price, 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.

Endless Shape Stacker ships an update every 6 months, Sky Stack every 3 days. The most recent releases landed on October 16, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Endless Shape Stacker | Sky Stack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 3 days** |
| Size | 2 MB | 104 MB |
| Requires iOS | 18.5 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Benjamin Rogge](https://appshunter.io/developer/1847382537) | [Mehmet Resat Senel](https://appshunter.io/developer/1867533935) |

## What reviewers say

### Endless Shape Stacker

[App page](https://appshunter.io/ios/app/endless-shape-stacker/id6754249891)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sky Stack

[App page](https://appshunter.io/ios/app/sky-stack-tower-builder/id6761363764)

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

**In-app purchases:** none


## Frequently asked questions

### Is Endless Shape Stacker free?

Endless Shape 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 Endless Shape Stacker or Sky Stack have ads?

Sky Stack shows ads; Endless Shape Stacker does not.

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

Endless Shape Stacker ships an update every 6 months, and Sky Stack every 3 days. Most recently, Endless Shape Stacker was updated on October 16, 2026 and Sky Stack on October 3, 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.*