# AR Sky Stack vs Stack 101 Tower

The clearest difference is ads: AR Sky Stack at none against Stack 101 Tower's shown. Stack 101 Tower's advantage is iOS requirement (12.0 vs 17.6). 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.

## The numbers

| Metric | AR Sky Stack | Stack 101 Tower |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | — | Every 5 days |
| Size | 7 MB | 54 MB |
| Requires iOS | 17.6 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Trevor Beaton](https://appshunter.io/developer/964296034) | [ZHENG YU-XIANG](https://appshunter.io/developer/1863257025) |

## What reviewers say

### AR Sky Stack

[App page](https://appshunter.io/ios/app/ar-sky-stack/id6743953205)

**Features:** macOS Compatibility

**In-app purchases:** none


### Stack 101 Tower

[App page](https://appshunter.io/ios/app/stack-101-tower/id6759484448)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AR Sky Stack free?

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

### Is Stack 101 Tower free?

Stack 101 Tower is free to download, with no in-app purchases.

### Do AR Sky Stack or Stack 101 Tower have ads?

Stack 101 Tower shows ads; AR Sky Stack does not.

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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.*