# Alien Attack vs Prehistoric Worm Worlds

The clearest difference is update cadence: Prehistoric Worm Worlds at every 3 weeks against Alien Attack's every 3 months. Prehistoric Worm Worlds also leads on rating (4.7 vs 4.5). Alien Attack's advantage is review sentiment (100% vs 89%). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Alien Attack sells 9 one-off in-app purchases and Prehistoric Worm Worlds sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Prehistoric Worm Worlds holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 11 and 26 respectively. Written reviews complicate that: 100% of Alien Attack's written reviews are positive against 89% of Prehistoric Worm Worlds's, so the app with the better star average is not the one people write more warmly about.

Alien Attack ships an update every 3 months, Prehistoric Worm Worlds every 3 weeks. The most recent releases landed on October 30, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Alien Attack | Prehistoric Worm Worlds |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (11 ratings)](https://appshunter.io/ios/app/alien-attack-idle-arcade-game/id6502288455/reviews) | **[4.7 (26 ratings)](https://appshunter.io/ios/app/prehistoric-worm-worlds/id6502689727/reviews)** |
| Number of ratings | 11 | **26** |
| Positive reviews | **100.0% of reviews** | 88.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 381 MB | 33 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [P.D. PLAYGENES INTERNATIONAL LIMITED](https://appshunter.io/developer/1492668667) | [Dominik Rossmanith](https://appshunter.io/developer/1570965177) |

## 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 (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ads Blocker | $0.99 | one-time |
| One-time offer! | $2.99 | one-time |
| Pile of Gems | $4.99 | one-time |
| One-time offer! | $4.99 | one-time |
| One-time offer! | $6.99 | one-time |
| Heap of Gems | $9.99 | one-time |
| One-time offer! | $11.99 | one-time |
| One-time offer! | $14.99 | one-time |
| One-time offer! | $69.99 | one-time |


### Prehistoric Worm Worlds

[App page](https://appshunter.io/ios/app/prehistoric-worm-worlds/id6502689727)

Control a prehistoric worm to destroy pixelated worlds, collect cards, and evolve your creature. Engage in addictive destruction gameplay with retro pixel art and build powerful decks to conquer diverse environments and military forces. Enjoy offline play and regular updates.

**Highlights:** Addictive destruction gameplay, Pixel art style, Card collecting and deck building, Explore diverse worlds, Fight military forces, Offline play, Regular updates

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Packs | $0.99 | one-time |
| Small special packs | $0.99 | one-time |
| Medium Special Packs | $1.99 | one-time |
| No Ads | $1.99 | one-time |
| Combo Pack | $2.99 | one-time |
| Starter pack | $3.99 | one-time |
| Huge Special Packs | $3.99 | one-time |
| King Coins | $5.99 | one-time |
| King Packs | $5.99 | one-time |
| King Special Packs | $5.99 | one-time |


## Frequently asked questions

### Is Alien Attack free?

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

### Is Prehistoric Worm Worlds free?

Prehistoric Worm Worlds is free to download, with in-app purchases available.

### Which has better reviews, Alien Attack or Prehistoric Worm Worlds?

Prehistoric Worm Worlds is rated higher. Alien Attack averages 4.5 out of 5 from 11 ratings, while Prehistoric Worm Worlds averages 4.7 from 26 ratings.

### Do Alien Attack or Prehistoric Worm Worlds have ads?

Both Alien Attack and Prehistoric Worm Worlds show ads.

### Which is updated more often, Alien Attack or Prehistoric Worm Worlds?

Alien Attack ships an update every 3 months, and Prehistoric Worm Worlds every 3 weeks. Most recently, Alien Attack was updated on October 30, 2026 and Prehistoric Worm Worlds on November 4, 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.*