# Ultimate Space Invaders vs Space Defenders

The clearest difference is update cadence: Ultimate Space Invaders at every 3 days against Space Defenders's monthly. 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.

Ultimate Space Invaders ships an update every 3 days, Space Defenders monthly. The most recent releases landed on October 18, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Ultimate Space Invaders | Space Defenders |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 3 days** | Monthly |
| Monetization | Ad-supported | — |
| Size | 14 MB | 70 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Victor Rubira Marin](https://appshunter.io/developer/461067911) | [Rodwel Polanco Martinez](https://appshunter.io/developer/1643362516) |

## What reviewers say

### Ultimate Space Invaders

[App page](https://appshunter.io/ios/app/ultimate-space-invaders/id1281390880)

Experience the classic arcade shooter with enhanced graphics, powerful weapons, and an immersive soundtrack. This ultimate version brings the beloved alien invasion gameplay to modern devices.

**Highlights:** Classic arcade gameplay, Updated graphics, All-powerful weapons, Spectacular soundtrack, Ultimate version

**Features:** macOS Compatibility

**In-app purchases:** none


### Space Defenders

[App page](https://appshunter.io/ios/app/space-defenders-arcade/id6463466903)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ultimate Space Invaders free?

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

### Is Space Defenders free?

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

### Do Ultimate Space Invaders or Space Defenders have ads?

Both Ultimate Space Invaders and Space Defenders show ads.

### Which is updated more often, Ultimate Space Invaders or Space Defenders?

Ultimate Space Invaders ships an update every 3 days, and Space Defenders monthly. Most recently, Ultimate Space Invaders was updated on October 18, 2026 and Space Defenders on October 6, 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.*