# Patient Zero vs KemoDoku

The clearest difference is price: Patient Zero at Free against KemoDoku's $0.99. Patient Zero also leads on ratings volume (5K vs 2). KemoDoku's advantage is in-app purchases (none vs 10) and ads (none vs shown). On rating, device support and iOS requirement there is nothing between them.

Patient Zero is free to download; KemoDoku costs $0.99 up front. Patient Zero sells 7 one-off in-app purchases. KemoDoku asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.6 for Patient Zero against 4.5 for KemoDoku. That said, the two scores are not equally well evidenced: Patient Zero has 5K ratings behind it against 2, so its average is the more settled of the two.

Patient Zero ships an update every 4 months, KemoDoku every 2 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Patient Zero | KemoDoku |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.6 (5K ratings)](https://appshunter.io/ios/app/patient-zero-virus-game/id6749201592/reviews)** | [4.5 (2 ratings)](https://appshunter.io/ios/app/kemodoku/id6752019675/reviews) |
| Number of ratings | **5K** | 2 |
| Positive reviews | 26.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 2 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 225 MB | 14 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Brightika, Inc.](https://appshunter.io/developer/1545142276) | [Martin Hanske](https://appshunter.io/developer/1716050508) |

## What reviewers say

### Patient Zero

[App page](https://appshunter.io/ios/app/patient-zero-virus-game/id6749201592)

Simulate the creation and spread of a deadly plague in this realistic apocalypse simulator. Adapt your pathogen against global efforts to stop it and decide the fate of humanity. It's a strategic test of biology and survival.

**Highlights:** Hyper-realistic virus simulation, Develop and adapt unique diseases, Global infection across all countries, Hundreds of evolving traits, Respond to thousands of world events, Built-in tutorials

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Light Pack | $0.99 | one-time |
| Medium Pack | $3.99 | one-time |
| No Ads | $4.99 | one-time |
| Starter Pack | $4.99 | one-time |
| Heavy Pack | $9.99 | one-time |
| No Ads VIP | $14.99 | one-time |
| Massive Pack | $14.99 | one-time |

**What reviewers like**

- 👍 Great gameplay
- 🚀 Smooth graphics

**What reviewers complain about**

- 💸 Too many ads
- 🔍 Lack of content

**Reported bugs**

- Game progress deleted due to phone dying
- Forced ads without user permission

**Requested features**

- Ability to restart from the beginning
- More pathogens to unlock


### KemoDoku

[App page](https://appshunter.io/ios/app/kemodoku/id6752019675)

This logic game offers a charming twist on classic Sudoku, replacing numbers with adorable animal icons. It provides a variety of difficulty levels and modes suitable for both beginners and experienced players, all playable offline. Enjoy hours of engaging brain training with delightful animal graphics.

**Highlights:** Classic and animal icon Sudoku, Multiple difficulty levels, Offline play support, Beautiful animal graphics, Brain training and logic development

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

**In-app purchases:** none


## Frequently asked questions

### Is Patient Zero free?

Patient Zero is free to download, with in-app purchases available.

### Is KemoDoku free?

KemoDoku costs $0.99, with no in-app purchases.

### Which has better reviews, Patient Zero or KemoDoku?

Patient Zero is rated higher. Patient Zero averages 4.6 out of 5 from 5K ratings, while KemoDoku averages 4.5 from 2 ratings.

### Do Patient Zero or KemoDoku have ads?

Patient Zero shows ads; KemoDoku does not.

### Which is updated more often, Patient Zero or KemoDoku?

Patient Zero ships an update every 4 months, and KemoDoku every 2 days. Most recently, Patient Zero was updated on October 26, 2026 and KemoDoku on October 24, 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.*