# Space Defender vs Space Energy

The clearest difference is in-app purchases: Space Defender at none against Space Energy's 3. Space Defender also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Space Energy sells 3 one-off in-app purchases. Space Defender asks for nothing beyond the download.

Space Defender ships an update every 13 months, Space Energy every 16 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Space Defender | Space Energy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (6 ratings)](https://appshunter.io/ios/app/space-defender-ultimate/id1232145880/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 13 months** | Every 16 months |
| Monetization | Free | — |
| Size | 15 MB | 101 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ilan TETRUASHVILI](https://appshunter.io/developer/940821251) | [LepTi's Games](https://appshunter.io/developer/1710950684) |

## What reviewers say

### 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, Vision Pro support

**In-app purchases:** none


### Space Energy

[App page](https://appshunter.io/ios/app/space-energy/id6468933277)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy 100 gems | $1.99 | one-time |
| Buy 300 gems | $2.99 | one-time |
| Remove ads | $3.99 | one-time |


## Frequently asked questions

### Is Space Defender free?

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

### Is Space Energy free?

Space Energy is free to download, with in-app purchases available.

### Do Space Defender or Space Energy have ads?

Space Energy shows ads; Space Defender does not.

### Which is updated more often, Space Defender or Space Energy?

Space Defender ships an update every 13 months, and Space Energy every 16 months. Most recently, Space Defender was updated on October 24, 2026 and Space Energy on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*