# Alien Attack vs Blank Grid

The clearest difference is in-app purchases: Blank Grid at none against Alien Attack's 18. Alien Attack's advantage is iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Alien Attack sells 16 one-off in-app purchases. Blank Grid asks for nothing beyond the download.

## The numbers

| Metric | Alien Attack | Blank Grid |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (10 ratings)](https://appshunter.io/ios/app/alien-attack-idle-arcade-game/id6502288455/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 381 MB | 44 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [P.D. PLAYGENES INTERNATIONAL LIMITED](https://appshunter.io/developer/1492668667) | [ATHENE GROUP LTD](https://appshunter.io/developer/1706489025) |

## What reviewers say

### Alien Attack

[App page](https://appshunter.io/ios/app/alien-attack-idle-arcade-game/id6502288455)

Lead an alien entity in an idle survival game to conquer the planet by consuming humans and evolving your army. Face formidable bosses and complete quests in exhilarating arcade action.

**Highlights:** Eternal Evolution upgrades, Exhilarating arcade gameplay, Epic boss battles, Progression and exploration, Consume humans to grow army

**Features:** Vision Pro support

**In-app purchases (16)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ads Blocker | $0.99 | one-time |
| Pearl keys | $1.99 | one-time |
| One-time offer! | $2.99 | one-time |
| One-time offer! | $3.99 | one-time |
| Pile of Gems | $4.99 | one-time |
| One-time offer! | $4.99 | one-time |
| One-time offer! | $5.99 | one-time |
| One-time offer! | $6.99 | one-time |
| Heap of Gems | $9.99 | one-time |
| One-time offer! | $9.99 | one-time |
| One-time offer! | $11.99 | one-time |
| One-time offer! | $12.99 | one-time |
| One-time offer! | $14.99 | one-time |
| One-time offer! | $19.99 | one-time |
| One-time offer! | $29.99 | one-time |
| One-time offer! | $69.99 | one-time |


### Blank Grid

[App page](https://appshunter.io/ios/app/blank-grid/id6784155995)

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

**In-app purchases:** none


## Frequently asked questions

### Is Alien Attack free?

Alien Attack is free to download, with in-app purchases available.

### Is Blank Grid free?

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

### Do Alien Attack or Blank Grid have ads?

Both Alien Attack and Blank Grid show ads.

---

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