# Alien Attack vs Octopus Invasion

Alien Attack and Octopus Invasion both sit at 4.5 stars, but that hides the real split: 100% of Alien Attack's written reviews are positive against 0% of Octopus Invasion's. Alien Attack also leads on iOS requirement (13.0 vs 15.0). Octopus Invasion's advantage is update cadence (every 3 weeks vs every 3 months) and ratings volume (91 vs 11). On price, rating, 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 Octopus Invasion sells 10 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.5 for Alien Attack against 4.5 for Octopus Invasion. That said, the two scores are not equally well evidenced: Octopus Invasion has 91 ratings behind it against 11, so its average is the more settled of the two. Written reviews are what separate them: 100% of Alien Attack's written reviews are positive against 0% of Octopus Invasion's.

Alien Attack ships an update every 3 months, Octopus Invasion every 3 weeks. The most recent releases landed on October 30, 2026 and November 12, 2026 respectively.

## The numbers

| Metric | Alien Attack | Octopus Invasion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (11 ratings)](https://appshunter.io/ios/app/alien-attack-idle-arcade-game/id6502288455/reviews) | **[4.5 (91 ratings)](https://appshunter.io/ios/app/octopus-invasion-fish-hunter/id6744035647/reviews)** |
| Number of ratings | 11 | **91** |
| Positive reviews | **100.0% of reviews** | 0.0% 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 | 200 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 12+ | 9+ |
| Developer | [P.D. PLAYGENES INTERNATIONAL LIMITED](https://appshunter.io/developer/1492668667) | [Supercode Games](https://appshunter.io/developer/1539592590) |

## 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 |


### Octopus Invasion

[App page](https://appshunter.io/ios/app/octopus-invasion-fish-hunter/id6744035647)

Control a growing octopus to devour sea creatures, evolve abilities, and conquer underwater worlds. Upgrade your cephalopod's stats and unlock new zones in this addictive hunting adventure.

**Highlights:** Devour and evolve into a larger sea monster, Upgrade speed, strength, and abilities, Explore six distinct underwater worlds, Hunt over 30 different sea creatures, Deploy minions for automatic resource gathering, Supports landscape and portrait modes

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Weekly | $4.99 | per 7 days |
| Exclusive VIP Offer | $9.99 | per 7 days |
| VIP Membership | $14.99 | per 7 days |
| Shells Pack 1 | $14.99 | one-time |
| Fish Bones Pack 1 | $24.99 | one-time |
| Shells Pack 2 | $24.99 | one-time |
| Starter Pack | $24.99 | one-time |
| Shells Pack 3 | $49.99 | one-time |
| Pearls Pack 3 | $49.99 | one-time |
| Premium Pack | $49.99 | one-time |


## Frequently asked questions

### Is Alien Attack free?

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

### Is Octopus Invasion free?

Octopus Invasion is free to download, with in-app purchases available.

### Which has better reviews, Alien Attack or Octopus Invasion?

Octopus Invasion is rated higher. Alien Attack averages 4.5 out of 5 from 11 ratings, while Octopus Invasion averages 4.5 from 91 ratings.

### Do Alien Attack or Octopus Invasion have ads?

Both Alien Attack and Octopus Invasion show ads.

### Which is updated more often, Alien Attack or Octopus Invasion?

Alien Attack ships an update every 3 months, and Octopus Invasion every 3 weeks. Most recently, Alien Attack was updated on October 30, 2026 and Octopus Invasion on November 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.*