# Earth Orbit Defense vs Sky Versus

The clearest difference is in-app purchases: Sky Versus at none against Earth Orbit Defense's 6. Earth Orbit Defense's advantage is update cadence (every 4 days vs every 5 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Earth Orbit Defense sells 6 one-off in-app purchases. Sky Versus asks for nothing beyond the download.

Earth Orbit Defense ships an update every 4 days, Sky Versus every 5 weeks. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Earth Orbit Defense | Sky Versus |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 4 days** | Every 5 weeks |
| Size | 19 MB | 11 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Aeon Design LLC](https://appshunter.io/developer/1875567578) | [YILI CHO](https://appshunter.io/developer/1659817879) |

## What reviewers say

### Earth Orbit Defense

[App page](https://appshunter.io/ios/app/earth-orbit-defense/id6760950773)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Scout Gold | $1.99 | one-time |
| 3 Time Tickets | $2.99 | one-time |
| Fleet Gold | $3.99 | one-time |
| Starter Bundle | $4.99 | one-time |
| 8 Time Tickets | $5.99 | one-time |
| Planet Gold | $6.99 | one-time |


### Sky Versus

[App page](https://appshunter.io/ios/app/sky-versus/id6761248880)

**In-app purchases:** none


## Frequently asked questions

### Is Earth Orbit Defense free?

Earth Orbit Defense is free to download, with in-app purchases available.

### Is Sky Versus free?

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

### Do Earth Orbit Defense or Sky Versus have ads?

Both Earth Orbit Defense and Sky Versus show ads.

### Which is updated more often, Earth Orbit Defense or Sky Versus?

Earth Orbit Defense ships an update every 4 days, and Sky Versus every 5 weeks. Most recently, Earth Orbit Defense was updated on November 9, 2026 and Sky Versus on October 31, 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.*