# Zombie Outbreak Simulator vs Bio Inc.

The clearest difference is ads: Bio Inc. at none against Zombie Outbreak Simulator's shown. Bio Inc. also leads on rating (4.4 vs 4.1) and iOS requirement (8.0 vs 12.0). On price, review sentiment, ratings volume and update cadence there is nothing between them.

Both are free to download. Zombie Outbreak Simulator sells 10 one-off in-app purchases and Bio Inc. sells 9 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Bio Inc. holds the better App Store score, 4.4 against 4.1. Both are backed by a comparable volume of ratings — 1.7K and 2.4K respectively. Written reviews complicate that: 69% of Zombie Outbreak Simulator's written reviews are positive against 61% of Bio Inc.'s, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 3 months. Both last shipped on November 6, 2026.

## The numbers

| Metric | Zombie Outbreak Simulator | Bio Inc. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (1.7K ratings)](https://appshunter.io/ios/app/zombie-outbreak-simulator/id523490663/reviews) | **[4.4 (2.4K ratings)](https://appshunter.io/ios/app/bio-inc-biomedical-plague/id932497563/reviews)** |
| Number of ratings | 1.7K | **2.4K** |
| Positive reviews | **69.1% of reviews** | 61.2% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 103 MB | 131 MB |
| Requires iOS | 12.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Binary Space Pty Ltd](https://appshunter.io/developer/499283439) | [DryGin Studios](https://appshunter.io/developer/530299099) |

## 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


### Bio Inc.

[App page](https://appshunter.io/ios/app/bio-inc-biomedical-plague/id932497563)

Develop lethal illnesses to determine a victim's fate in this biomedical strategy simulator. Upgrade diseases, boost risk factors, and slow recovery before doctors find a cure. Offers hours of gameplay with realistic conditions and numerous stages.

**Highlights:** Biomedical strategy simulator, Develop lethal illnesses, Upgrade diseases and risk factors, 18 stages with different gameplay, 100+ realistic biomedical conditions, Spread diseases across human systems, Real-time human body degradation

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Stages | $0.99 | one-time |
| Unlock Bio Inc. | $2.99 | one-time |
| Unlock Bio Inc. & All Stages | $2.99 | one-time |
| Small Pack of Bio Coins | $4.99 | one-time |
| Medium Pack of Bio Coins | $6.99 | one-time |
| Unlock Cheats | $6.99 | one-time |
| Large Pack of Bio Coins | $10.99 | one-time |
| Unlimited Bio Coins! | $17.99 | one-time |
| Unlimited Bio Coins + Cheats | $21.99 | one-time |

**What reviewers like**

- 🚀 Fun and addictive gameplay
- 👍 Realistic and educational
- 🤩 Excellent game concept
- 💡 Ability to name the victim
- 🎨 Great graphics and visuals

**What reviewers complain about**

- 🐛 Frequent freezing and crashing issues
- 💰 Expensive in-app purchases
- 🔍 Unrealistic disease progression and recovery
- 🙄 Too many ads
- 🤔 Confusing or misleading mechanics

**Reported bugs**

- Start button not working after ads
- Purchased boosts not applying correctly
- Inconsistent recovery rate and disease progression
- Saved progress not loading properly

**Requested features**

- Add a mode to save/cure the patient
- Improve the difficulty balance
- Provide more detailed disease information
- Allow customization of the patient
- Reduce the number of ads or make them less intrusive


## Frequently asked questions

### Is Zombie Outbreak Simulator free?

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

### Is Bio Inc. free?

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

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

Bio Inc. is rated higher. Zombie Outbreak Simulator averages 4.1 out of 5 from 1.7K ratings, while Bio Inc. averages 4.4 from 2.4K ratings.

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

Zombie Outbreak Simulator shows ads; Bio Inc. does not.

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

Zombie Outbreak Simulator ships an update every 3 months, and Bio Inc. every 3 months. Most recently, Zombie Outbreak Simulator was updated on November 6, 2026 and Bio Inc. on November 6, 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.*