# BoxHead vs Zombies 2 vs Rat Killer Robot Invasion

The clearest difference is review sentiment: BoxHead vs Zombies 2 at 86% against Rat Killer Robot Invasion's 31%. BoxHead vs Zombies 2 also leads on in-app purchases (none vs 17). Rat Killer Robot Invasion's advantage is rating (4.6 vs 3.8) and update cadence (every 10 days vs every 13 months). On price, ads and device support there is nothing between them.

Both are free to download. Rat Killer Robot Invasion sells 17 in-app purchases, starting at $4.99 per 7 days. BoxHead vs Zombies 2 asks for nothing beyond the download.

Rat Killer Robot Invasion holds the better App Store score, 4.6 against 3.8. That said, the two scores are not equally well evidenced: Rat Killer Robot Invasion has 2K ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 86% of BoxHead vs Zombies 2's written reviews are positive against 31% of Rat Killer Robot Invasion's, so the app with the better star average is not the one people write more warmly about.

BoxHead vs Zombies 2 ships an update every 13 months, Rat Killer Robot Invasion every 10 days. The most recent releases landed on September 25, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | BoxHead vs Zombies 2 | Rat Killer Robot Invasion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (5 ratings)](https://appshunter.io/ios/app/boxhead-vs-zombies-2/id1499893768/reviews) | **[4.6 (2K ratings)](https://appshunter.io/ios/app/rat-killer-robot-invasion/id6464372285/reviews)** |
| Number of ratings | 5 | **2K** |
| Positive reviews | **85.7% of reviews** | 31.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 13 months | **Every 10 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 120 MB | 353 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 9+ |
| Developer | [Apps Bergman Ltda](https://appshunter.io/developer/1117417290) | [TapNation](https://appshunter.io/developer/1483575279) |

## What reviewers say

### BoxHead vs Zombies 2

[App page](https://appshunter.io/ios/app/boxhead-vs-zombies-2/id1499893768)

Engage in an intense zombie apocalypse, battling waves of the undead with a vast arsenal of weapons and upgrades. Explore dynamic maps and utilize game-changing power-ups to survive and climb global leaderboards.

**Highlights:** Diverse weapons arsenal, Dynamic maps with unique challenges, Game-changing power-ups, Global leaderboard competition, Unlockable weapons and upgrades

**Features:** Vision Pro support

**In-app purchases:** none


### Rat Killer Robot Invasion

[App page](https://appshunter.io/ios/app/rat-killer-robot-invasion/id6464372285)

Embark on an epic quest to exterminate waves of invading rats with futuristic weapons. Collect in-game currency to unlock new zones, upgrade your robot companion, and customize its appearance. Explore diverse worlds and face challenging puzzles and boss battles.

**Highlights:** Rat extermination action, Robot customization, Weapon collection and upgrades, Diverse world exploration, Puzzles and boss battles, Collect money and gems

**Features:** macOS Compatibility

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP Membership - Weekly | $4.99 | per 7 days |
| Elite Membership - Weekly | $8.99 | per 7 days |
| Elite Membership - Monthly | $24.99 | per month |
| Skip It - Small Pack | $0.99 | one-time |
| One Time Offer | $1.99 | one-time |
| Handful Of Crystals | $1.99 | one-time |
| Bunch Of Crystals | $4.99 | one-time |
| Skip It - Medium Pack | $8.99 | one-time |
| Pile Of Crystals | $8.99 | one-time |
| Rats Pass | $9.99 | one-time |
| Small Bundle | $11.99 | one-time |
| Master Mode | $15.99 | one-time |
| Starter Pack | $15.99 | one-time |
| Medium Bundle | $24.99 | one-time |
| Limited Offer Pack | $29.99 | one-time |
| Premium Offer | $39.99 | one-time |
| Crate Of Crystals | $89.99 | one-time |

**What reviewers like**

- 👍 Fun gameplay
- 🦂 Scorpion mech character

**What reviewers complain about**

- 🐛 Glitchy and buggy
- 🕰️ Excessive ads
- ⚠️ Imbalanced game mechanics
- 💰 Progression blocked by premium currency

**Reported bugs**

- Character flipping upside down or flying across the board
- NPCs getting stuck in portals or on walls
- Incorrect item/reward drops from chests
- Launching player off the screen
- Robot unable to keep legs on the ground and rolling around

**Requested features**

- Optimize performance and fix bugs
- Improve game balance and progression
- Add more content and features
- Provide better customer support


## Frequently asked questions

### Is BoxHead vs Zombies 2 free?

BoxHead vs Zombies 2 is free to download, with no in-app purchases.

### Is Rat Killer Robot Invasion free?

Rat Killer Robot Invasion is free to download, with in-app purchases available.

### Which has better reviews, BoxHead vs Zombies 2 or Rat Killer Robot Invasion?

Rat Killer Robot Invasion is rated higher. BoxHead vs Zombies 2 averages 3.8 out of 5 from 5 ratings, while Rat Killer Robot Invasion averages 4.6 from 2K ratings.

### Do BoxHead vs Zombies 2 or Rat Killer Robot Invasion have ads?

Both BoxHead vs Zombies 2 and Rat Killer Robot Invasion show ads.

### Which is updated more often, BoxHead vs Zombies 2 or Rat Killer Robot Invasion?

BoxHead vs Zombies 2 ships an update every 13 months, and Rat Killer Robot Invasion every 10 days. Most recently, BoxHead vs Zombies 2 was updated on September 25, 2026 and Rat Killer Robot Invasion on October 15, 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.*