# Stack 101 Tower vs Red Trap

The clearest difference is ads: Red Trap at none against Stack 101 Tower's shown. On price, in-app purchases, device support and iOS requirement 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 | Stack 101 Tower | Red Trap |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | — |
| Size | 54 MB | 16 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ZHENG YU-XIANG](https://appshunter.io/developer/1863257025) | [Aleksejs Urbanovics](https://appshunter.io/developer/6783694691) |

## What reviewers say

### Stack 101 Tower

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Red Trap

[App page](https://appshunter.io/ios/app/red-trap/id6784999340)

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

**In-app purchases:** none


## Frequently asked questions

### Is Stack 101 Tower free?

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

### Is Red Trap free?

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

### Do Stack 101 Tower or Red Trap have ads?

Stack 101 Tower shows ads; Red Trap 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.*