# Radiant Space Fighter vs Stack 101 Tower

The clearest difference is update cadence: Stack 101 Tower at every 5 days against Radiant Space Fighter's every 76 months. 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.

Radiant Space Fighter ships an update every 76 months, Stack 101 Tower every 5 days. The most recent releases landed on October 5, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Radiant Space Fighter | Stack 101 Tower |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 76 months | **Every 5 days** |
| Size | 71 MB | 54 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aleksa Racovic](https://appshunter.io/developer/1255649501) | [ZHENG YU-XIANG](https://appshunter.io/developer/1863257025) |

## What reviewers say

### Radiant Space Fighter

[App page](https://appshunter.io/ios/app/radiant-space-fighter/id1257641336)

**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 Radiant Space Fighter free?

Radiant Space Fighter 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 Radiant Space Fighter or Stack 101 Tower have ads?

Both Radiant Space Fighter and Stack 101 Tower show ads.

### Which is updated more often, Radiant Space Fighter or Stack 101 Tower?

Radiant Space Fighter ships an update every 76 months, and Stack 101 Tower every 5 days. Most recently, Radiant Space Fighter was updated on October 5, 2026 and Stack 101 Tower on October 18, 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.*