# Alien Attack vs UAPD

The clearest difference is rating: UAPD at 5.0 against Alien Attack's 4.5. UAPD also leads on in-app purchases (none vs 18) and ads (none vs shown). Alien Attack's advantage is ratings volume (11 vs 1) and iOS requirement (13.0 vs 16.0). On price, update cadence and device support there is nothing between them.

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

UAPD holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Alien Attack has 11 ratings behind it against 1, so its average is the more settled of the two.

Alien Attack ships an update every 3 months, UAPD every 5 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Alien Attack | UAPD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (11 ratings)](https://appshunter.io/ios/app/alien-attack-idle-arcade-game/id6502288455/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/uapd/id6768464075/reviews)** |
| Number of ratings | **11** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 381 MB | 505 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [P.D. PLAYGENES INTERNATIONAL LIMITED](https://appshunter.io/developer/1492668667) | [Richard Blundell](https://appshunter.io/developer/1896359553) |

## 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 |


### UAPD

[App page](https://appshunter.io/ios/app/uapd/id6768464075)

Pilot a UFO to abduct cows from rural America while evading federal agents, helicopters, and police. Utilize different UFO types and mechanics like crop circles to distract pursuers and maintain your cover.

**Highlights:** Abduct cows with tractor beam, Evade federal agents and helicopters, Three distinct UFO archetypes, Create crop circle distractions, Global leaderboard, No accounts or tracking

**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 UAPD free?

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

### Which has better reviews, Alien Attack or UAPD?

UAPD is rated higher. Alien Attack averages 4.5 out of 5 from 11 ratings, while UAPD averages 5.0 from 1 ratings.

### Do Alien Attack or UAPD have ads?

Alien Attack shows ads; UAPD does not.

### Which is updated more often, Alien Attack or UAPD?

Alien Attack ships an update every 3 months, and UAPD every 5 months. Most recently, Alien Attack was updated on October 24, 2026 and UAPD on October 24, 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.*