# Rebound Invaders vs Space Defender

The clearest difference is review sentiment: Space Defender at 100% against Rebound Invaders's 0%. Space Defender also leads on ads (none vs shown) and monetization model (free vs ad-supported). On price, update cadence, 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.

Rebound Invaders ships an update every 18 months, Space Defender every 15 months. The most recent releases landed on September 17, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | Rebound Invaders | Space Defender |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/space-defender-ultimate/id1232145880/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 18 months | **Every 15 months** |
| Monetization | Ad-supported | **Free** |
| Size | 46 MB | 14 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Galatic Droids](https://appshunter.io/developer/806182439) | [ilan TETRUASHVILI](https://appshunter.io/developer/940821251) |

## What reviewers say

### Rebound Invaders

[App page](https://appshunter.io/ios/app/rebound-invaders/id896339002)

Experience a retro arcade space shooter where your plasma ball bounces off walls and enemies. Dodge your own ricocheting projectiles and alien counter-attacks to survive. Features tilt or on-screen controls for classic shoot'em up action.

**Highlights:** Bouncing plasma ball weapon, Ricocheting projectiles, Alien force field defense, Tilt or on-screen controls, Fast-paced arcade action, Retro graphics

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

**In-app purchases:** none


### Space Defender

[App page](https://appshunter.io/ios/app/space-defender-ultimate/id1232145880)

Engage in an addictive space combat experience with vibrant pixel art. Navigate through challenging waves and aim for the highest score to protect the galaxy. This game offers endless replayability and fun.

**Highlights:** Endless gameplay, Challenging and fun, Pixel art animations, 24 different waves, Hi-score competition

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Rebound Invaders free?

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

### Is Space Defender free?

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

### Do Rebound Invaders or Space Defender have ads?

Rebound Invaders shows ads; Space Defender does not.

### Which is updated more often, Rebound Invaders or Space Defender?

Rebound Invaders ships an update every 18 months, and Space Defender every 15 months. Most recently, Rebound Invaders was updated on September 17, 2026 and Space Defender on September 15, 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.*