# Space Defense vs Stack'

The clearest difference is update cadence: Stack' at daily against Space Defense's every 25 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.

Space Defense ships an update every 25 months, Stack' daily. The most recent releases landed on October 16, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Space Defense | Stack' |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 25 months | **Daily** |
| Size | 99 MB | 16 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [kerem yokuva](https://appshunter.io/developer/499612704) | [Cedric Cornelis](https://appshunter.io/developer/640534931) |

## What reviewers say

### Space Defense

[App page](https://appshunter.io/ios/app/space-defensesun-goes-boom/id1552574550)

**Features:** macOS Compatibility

**In-app purchases:** none


### Stack'

[App page](https://appshunter.io/ios/app/stack/id6502195987)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Space Defense free?

Space Defense is free to download, with no in-app purchases.

### Is Stack' free?

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

### Do Space Defense or Stack' have ads?

Both Space Defense and Stack' show ads.

### Which is updated more often, Space Defense or Stack'?

Space Defense ships an update every 25 months, and Stack' daily. Most recently, Space Defense was updated on October 16, 2026 and 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.*