# Tower Stack Challenge vs Slither Out

The clearest difference is update cadence: Slither Out at every 2 months against Tower Stack Challenge's every 17 months. Slither Out also leads on iOS requirement (13.0 vs 15.0). 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.

Tower Stack Challenge ships an update every 17 months, Slither Out every 2 months. The most recent releases landed on September 20, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Tower Stack Challenge | Slither Out |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (8 ratings)](https://appshunter.io/ios/app/slither-out/id6748295186/reviews)** |
| Number of ratings | — | **8** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 17 months | **Every 2 months** |
| Monetization | — | Ad-supported |
| Size | 254 MB | 120 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [KAKAK](https://appshunter.io/developer/1501395145) | [云敏 沈](https://appshunter.io/developer/1780252543) |

## What reviewers say

### Tower Stack Challenge

[App page](https://appshunter.io/ios/app/tower-stack-challenge/id6737799812)

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

**In-app purchases:** none


### Slither Out

[App page](https://appshunter.io/ios/app/slither-out/id6748295186)

Guide slithers to their sugar cubes to help them grow wings and escape hunters' traps. This puzzle game offers easy-to-learn mechanics with challenging levels that require strategic thinking and careful planning to master.

**Highlights:** Easy to learn, challenging to master gameplay, Variety of unique puzzle levels, Playable anytime, anywhere, Satisfying combo mechanics, Strategic click-based matching

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tower Stack Challenge free?

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

### Is Slither Out free?

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

### Do Tower Stack Challenge or Slither Out have ads?

Both Tower Stack Challenge and Slither Out show ads.

### Which is updated more often, Tower Stack Challenge or Slither Out?

Tower Stack Challenge ships an update every 17 months, and Slither Out every 2 months. Most recently, Tower Stack Challenge was updated on September 20, 2026 and Slither Out on September 12, 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.*