# Galaxy Alien Space Attack vs Duck Bop

The clearest difference is in-app purchases: Galaxy Alien Space Attack at none against Duck Bop's 3. Galaxy Alien Space Attack also leads on update cadence (daily vs every 3 days) and iOS requirement (13.0 vs 26.5). On price, ads and device support there is nothing between them.

Both are free to download. Duck Bop sells 3 one-off in-app purchases. Galaxy Alien Space Attack asks for nothing beyond the download.

Galaxy Alien Space Attack ships an update daily, Duck Bop every 3 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Galaxy Alien Space Attack | Duck Bop |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/duck-bop/id6813723214/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Daily** | Every 3 days |
| Monetization | — | Free with in-app purchases |
| Size | 87 MB | 47 MB |
| Requires iOS | **13.0** | 26.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [刚 曾](https://appshunter.io/developer/324816540) | [James Renne](https://appshunter.io/developer/6813723216) |

## What reviewers say

### Galaxy Alien Space Attack

[App page](https://appshunter.io/ios/app/galaxy-alien-space-attack/id6790705228)

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

**In-app purchases:** none


### Duck Bop

[App page](https://appshunter.io/ios/app/duck-bop/id6813723214)

Experience a retro-inspired arcade shooter with vibrant visuals and thrilling power-ups. Chase high scores, battle bosses, and unlock gear in this fast-paced aquatic adventure. Enjoy classic gaming excitement with modern mobile convenience.

**Highlights:** Four playable surfing ducks, Underwater world with bosses, Protective bubble power-up, Collect Duck Coins for gear, Four difficulty levels, 46 language support

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 25,000 Duck Coins | $0.99 | one-time |
| 60,000 Duck Coins | $1.99 | one-time |
| 100,000 Duck Coins | $3.00 | one-time |


## Frequently asked questions

### Is Galaxy Alien Space Attack free?

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

### Is Duck Bop free?

Duck Bop is free to download, with in-app purchases available.

### Do Galaxy Alien Space Attack or Duck Bop have ads?

Both Galaxy Alien Space Attack and Duck Bop show ads.

### Which is updated more often, Galaxy Alien Space Attack or Duck Bop?

Galaxy Alien Space Attack ships an update daily, and Duck Bop every 3 days. Most recently, Galaxy Alien Space Attack was updated on October 31, 2026 and Duck Bop 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.*