# Galatic Attack 2 vs Sudoku51

The clearest difference is ads: Sudoku51 at none against Galatic Attack 2's shown. Sudoku51 also leads on update cadence (every 14 months vs every 37 months). Galatic Attack 2's advantage is iOS requirement (13.0 vs 17.6). 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.

Galatic Attack 2 ships an update every 37 months, Sudoku51 every 14 months. The most recent releases landed on September 29, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Galatic Attack 2 | Sudoku51 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/galatic-attack-2/id1023126099/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 37 months | **Every 14 months** |
| Monetization | Ad-supported | — |
| Size | 66 MB | 9 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [Galatic Droids](https://appshunter.io/developer/806182439) | [Herbert Caller](https://appshunter.io/developer/1352839830) |

## What reviewers say

### Galatic Attack 2

[App page](https://appshunter.io/ios/app/galatic-attack-2/id1023126099)

Pilot a powerful spacecraft to defend the galaxy against relentless alien invaders. Engage in fast-paced, retro-style arcade combat with twin-shooting drones. Destroy waves of tough space invaders to save humanity.

**Highlights:** Retro shoot 'em up gameplay, Defend the galaxy, Twin shooting attack drone, Destroy hordes of invaders, Quick fire action

**Features:** macOS Compatibility

**In-app purchases:** none


### Sudoku51

[App page](https://appshunter.io/ios/app/sudoku51/id1450760182)

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

**In-app purchases:** none


## Frequently asked questions

### Is Galatic Attack 2 free?

Galatic Attack 2 is free to download, with no in-app purchases.

### Is Sudoku51 free?

Sudoku51 is free to download, with no in-app purchases.

### Do Galatic Attack 2 or Sudoku51 have ads?

Galatic Attack 2 shows ads; Sudoku51 does not.

### Which is updated more often, Galatic Attack 2 or Sudoku51?

Galatic Attack 2 ships an update every 37 months, and Sudoku51 every 14 months. Most recently, Galatic Attack 2 was updated on September 29, 2026 and Sudoku51 on October 12, 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.*