# Project Entropy vs Alien Annihilation Agent

The clearest difference is rating: Alien Annihilation Agent at 5.0 against Project Entropy's 4.4. Alien Annihilation Agent also leads on in-app purchases (none vs 13) and iOS requirement (12.0 vs 15.0). Project Entropy's advantage is ads (none vs shown) and ratings volume (1.4K vs 1). On price, update cadence and device support there is nothing between them.

Both are free to download. Project Entropy sells 13 in-app purchases, starting at $9.99 per month. Alien Annihilation Agent asks for nothing beyond the download.

Alien Annihilation Agent holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Project Entropy has 1.4K ratings behind it against 1, so its average is the more settled of the two.

Project Entropy ships an update every 2 weeks, Alien Annihilation Agent every 3 weeks. The most recent releases landed on October 16, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Project Entropy | Alien Annihilation Agent |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (1.4K ratings)](https://appshunter.io/ios/app/project-entropy/id6443792064/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/alien-annihilation-agent/id6449690896/reviews)** |
| Number of ratings | **1.4K** | 1 |
| Positive reviews | 24.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 2.7 GB | 239 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [FunPlus International AG](https://appshunter.io/developer/1343106322) | [GRAVITY NEOCYON](https://appshunter.io/developer/1561085852) |

## What reviewers say

### Project Entropy

[App page](https://appshunter.io/ios/app/project-entropy/id6443792064)

Command a vast fleet in a sci-fi universe, exploring uncharted planets, recruiting alien lifeforms, and engaging in real-time multiplayer combat. Forge alliances, customize your forces with advanced weaponry, and rise to rule the stars.

**Highlights:** Assemble diverse crews and fleets, Customize heroes and vehicles, Engage in deep, dynamic combat, Command tanks and aircraft, Utilize advanced weaponry, Real-time multiplayer battles, Join alliances for warfare

**Features:** Vision Pro support

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Subscription Perks | $9.99 | per month |
| NewBee Bunlde | $0.99 | one-time |
| a handful of R.C coins | $0.99 | one-time |
| a small pile of R.C coins | $1.99 | one-time |
| Bag of Gold | $2.99 | one-time |
| a stack of R.C coins coins | $4.99 | one-time |
| a bag full of R.C coins | $9.99 | one-time |
| a chest filled with R.C coins | $19.99 | one-time |
| A bag of R.C Coins | $24.99 | one-time |
| A bag of Dimond | $29.99 | one-time |
| Battlepass | $29.99 | one-time |
| a trunk of R.C coins | $49.99 | one-time |
| a vault of R.C coins | $99.99 | one-time |

**What reviewers like**

- 🚀 Awesome gameplay
- 👍 Great graphics and animations
- 💡 Interesting storyline and characters
- 🤝 Engaging alliance and community features

**What reviewers complain about**

- 🐛 Frequent bugs and crashes
- 🕰️ Slow progression and resource gathering
- 💰 Aggressive monetization and pay-to-win mechanics
- 🤖 Repetitive and unbalanced gameplay

**Reported bugs**

- Game freezes and crashes during combat
- Server merges causing major progress loss
- Inability to progress past certain stages
- Incorrect or missing in-game information

**Requested features**

- Add more variety in gameplay modes
- Improve server stability and reduce downtime
- Increase drop rates for rare items and heroes
- Provide better communication and support from developers


### Alien Annihilation Agent

[App page](https://appshunter.io/ios/app/alien-annihilation-agent/id6449690896)

Defend humanity's last hope by strategically deploying and upgrading defensive towers. Prevent waves of alien creatures from reaching your base in this engaging mobile strategy game.

**Highlights:** Strategic tower deployment, Tower upgrades for enhanced power, Prevent enemy base invasion, Intuitive interface, Short play sessions, Mobile-friendly gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Project Entropy free?

Project Entropy is free to download, with in-app purchases available.

### Is Alien Annihilation Agent free?

Alien Annihilation Agent is free to download, with no in-app purchases.

### Which has better reviews, Project Entropy or Alien Annihilation Agent?

Alien Annihilation Agent is rated higher. Project Entropy averages 4.4 out of 5 from 1.4K ratings, while Alien Annihilation Agent averages 5.0 from 1 ratings.

### Do Project Entropy or Alien Annihilation Agent have ads?

Alien Annihilation Agent shows ads; Project Entropy does not.

### Which is updated more often, Project Entropy or Alien Annihilation Agent?

Project Entropy ships an update every 2 weeks, and Alien Annihilation Agent every 3 weeks. Most recently, Project Entropy was updated on October 16, 2026 and Alien Annihilation Agent on October 1, 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.*