# Zombie Outbreak Simulator vs Invaders Inc.

The clearest difference is rating: Zombie Outbreak Simulator at 4.1 against Invaders Inc.'s 3.3. Zombie Outbreak Simulator also leads on review sentiment (69% vs 50%) and ratings volume (1.7K vs 132). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Zombie Outbreak Simulator sells 10 one-off in-app purchases and Invaders Inc. sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Zombie Outbreak Simulator holds the better App Store score, 4.1 against 3.3. That said, the two scores are not equally well evidenced: Zombie Outbreak Simulator has 1.7K ratings behind it against 132, so its average is the more settled of the two. Written reviews point the same way: 69% of Zombie Outbreak Simulator's written reviews are positive against 50% of Invaders Inc.'s.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on October 20, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Zombie Outbreak Simulator | Invaders Inc. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (1.7K ratings)](https://appshunter.io/ios/app/zombie-outbreak-simulator/id523490663/reviews)** | [3.3 (132 ratings)](https://appshunter.io/ios/app/invaders-inc-alien-plague/id1077747523/reviews) |
| Number of ratings | **1.7K** | 132 |
| Positive reviews | **69.3% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 103 MB | 27 MB |
| Requires iOS | **12.0** | 12.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 9+ |
| Developer | [Binary Space Pty Ltd](https://appshunter.io/developer/499283439) | [PHB Media Ltd](https://appshunter.io/developer/449688752) |

## What reviewers say

### Zombie Outbreak Simulator

[App page](https://appshunter.io/ios/app/zombie-outbreak-simulator/id523490663)

Simulate and customize zombie outbreaks in real-world locations using Google Maps. Control outbreak parameters, observe chaos unfold, and even join the fight with military interventions. Explore thousands of player-created maps or offline options.

**Highlights:** Real-world map simulation with Google Maps integration, Customizable outbreak parameters (zombie speed, civilian numbers, etc.), Observe infection spread from satellite to street view, Direct intervention with bombs, soldiers, and helicopters, Thousands of player-created maps, Offline map play

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Offline & Online Maps | $0.99 | one-time |
| Unlock Outbreak Settings | $0.99 | one-time |
| Unlimited Soldiers | $0.99 | one-time |
| Unlimited Mk81 Bombs | $0.99 | one-time |
| Unlimited Mk82 Bombs | $0.99 | one-time |
| Unlimited Helicopters | $0.99 | one-time |
| Unlock Player Maps - Americas | $1.99 | one-time |
| Unlimited Bombs, Soldiers & Helicopters | $2.99 | one-time |
| Unlock All Player Maps | $2.99 | one-time |
| Unlock Everything | $4.99 | one-time |

**What reviewers like**

- 🚀 Great simulator
- 🚀 Immersive gameplay
- 👍 Beautiful graphics
- 👍 Addictive and fun

**What reviewers complain about**

- 💰 Pay-to-play model
- 🐛 Bugs and glitches
- 🐛 AI issues
- 🔒 Limited free content

**Reported bugs**

- Civilians getting stuck in buildings
- Online and player-created maps not working
- Issues with watching ads for in-game rewards
- Restore purchases not working after reinstallation

**Requested features**

- Add more military units (tanks, helicopters, etc.)
- Implement a sandbox mode with more customization
- Improve zombie and civilian AI
- Add more maps and locations
- Introduce different zombie types and mutations


### Invaders Inc.

[App page](https://appshunter.io/ios/app/invaders-inc-alien-plague/id1077747523)

Lead an alien invasion in this fast-paced strategy game. Choose from various alien races, harvest resources, and upgrade your forces to conquer Earth. Experience challenging gameplay with multiple difficulty levels.

**Highlights:** Lead alien invasion, Choose from three alien races, Harvest and upgrade resources, Evolve alien species, Upgrade spaceships, Produce weapons of war

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade Pack | $2.99 | one-time |

**What reviewers like**

- 🎮 Fun and addictive strategy gameplay
- 💰 Free-to-play model
- 👽 Unique alien invasion theme
- 🧠 Simple yet strategic mechanics
- ⚙️ Multiple difficulty levels

**What reviewers complain about**

- 📺 Excessive and intrusive ads
- ⏸️ Forced ads even to quit the game
- 🐢 Slow progression and point accumulation
- 😴 Limited content and gets boring quickly
- 📋 Limited to only three alien races

**Reported bugs**

- Game crashes after selecting difficulty
- White screen glitches after ads
- Unclosable ads preventing gameplay
- Ads bypass ad blockers
- Button malfunctions and unresponsive taps

**Requested features**

- Add more alien races
- Implement pause and speed controls
- Add visual effects and animations
- Include more detailed country-level maps
- Add online multiplayer mode


## Frequently asked questions

### Is Zombie Outbreak Simulator free?

Zombie Outbreak Simulator is free to download, with in-app purchases available.

### Is Invaders Inc. free?

Invaders Inc. is free to download, with in-app purchases available.

### Which has better reviews, Zombie Outbreak Simulator or Invaders Inc.?

Zombie Outbreak Simulator is rated higher. Zombie Outbreak Simulator averages 4.1 out of 5 from 1.7K ratings, while Invaders Inc. averages 3.3 from 132 ratings.

### Do Zombie Outbreak Simulator or Invaders Inc. have ads?

Both Zombie Outbreak Simulator and Invaders Inc. show ads.

### Which is updated more often, Zombie Outbreak Simulator or Invaders Inc.?

Zombie Outbreak Simulator ships an update every 3 months, and Invaders Inc. every 3 months. Most recently, Zombie Outbreak Simulator was updated on October 20, 2026 and Invaders Inc. on October 8, 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.*