# Alien Invader Escape vs Space

The clearest difference is ads: Space at none against Alien Invader Escape's shown. Space also leads on update cadence (every 2 months vs every 18 months) and iOS requirement (13.0 vs 15.6). On price, 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.

Alien Invader Escape ships an update every 18 months, Space every 2 months. The most recent releases landed on October 12, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Alien Invader Escape | Space |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/space-defender-xtreme/id1446184263/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 18 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 14 MB | 64 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tang Cho man](https://appshunter.io/developer/592719186) | [Scratchmark Ltd](https://appshunter.io/developer/1446184262) |

## What reviewers say

### Alien Invader Escape

[App page](https://appshunter.io/ios/app/alien-invader-escape/id858894874)

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

**In-app purchases:** none


### Space

[App page](https://appshunter.io/ios/app/space-defender-xtreme/id1446184263)

Defend Earth in this retro arcade space shooter against relentless alien invaders. Pilot unique spacecraft, utilize various weapons, and collect power-ups to survive increasingly difficult waves and boss battles. Compete on global leaderboards for the highest score.

**Highlights:** Unique spacecraft with advantages/disadvantages, Varied alien enemy types, Multiple weapon types, Challenging boss levels, Shield, Weapon, and Health power-ups, Global leaderboards

**In-app purchases:** none


## Frequently asked questions

### Is Alien Invader Escape free?

Alien Invader Escape is free to download, with no in-app purchases.

### Is Space free?

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

### Do Alien Invader Escape or Space have ads?

Alien Invader Escape shows ads; Space does not.

### Which is updated more often, Alien Invader Escape or Space?

Alien Invader Escape ships an update every 18 months, and Space every 2 months. Most recently, Alien Invader Escape was updated on October 12, 2026 and Space 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.*