# Virus Killer vs Kakuso Challenge

The clearest difference is in-app purchases: Virus Killer at none against Kakuso Challenge's 3. Virus Killer also leads on update cadence (every 6 weeks vs every 6 months) and iOS requirement (11.0 vs 13.1). On price, ads and device support there is nothing between them.

Both are free to download. Kakuso Challenge sells 3 one-off in-app purchases. Virus Killer asks for nothing beyond the download.

Virus Killer ships an update every 6 weeks, Kakuso Challenge every 6 months. The most recent releases landed on October 23, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Virus Killer | Kakuso Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (6 ratings)](https://appshunter.io/ios/app/virus-killer/id623257684/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 6 weeks** | Every 6 months |
| Monetization | Ad-supported | — |
| Size | 13 MB | 17 MB |
| Requires iOS | **11.0** | 13.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [毅 郑](https://appshunter.io/developer/514946161) | [Alven Kam](https://appshunter.io/developer/1227687322) |

## What reviewers say

### Virus Killer

[App page](https://appshunter.io/ios/app/virus-killer/id623257684)

A puzzle game where players strategically drop colored capsules to eliminate viruses. Match four or more of the same color to clear them from the board and complete levels. Avoid filling the bottle to prevent a game over.

**Highlights:** Falling capsule manipulation, Color-matching mechanics, Virus elimination objectives, Level-based progression, Adjustable difficulty levels, Multiple game speed options

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

**In-app purchases:** none


### Kakuso Challenge

[App page](https://appshunter.io/ios/app/kakuso-challenge/id1485845940)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kakuso Challenge 20 Hints | $0.99 | one-time |
| Kakuso Challenge 50 Hints | $1.99 | one-time |
| Kakuso Challenge 100 Hints | $2.99 | one-time |


## Frequently asked questions

### Is Virus Killer free?

Virus Killer is free to download, with no in-app purchases.

### Is Kakuso Challenge free?

Kakuso Challenge is free to download, with in-app purchases available.

### Do Virus Killer or Kakuso Challenge have ads?

Both Virus Killer and Kakuso Challenge show ads.

### Which is updated more often, Virus Killer or Kakuso Challenge?

Virus Killer ships an update every 6 weeks, and Kakuso Challenge every 6 months. Most recently, Virus Killer was updated on October 23, 2026 and Kakuso Challenge on October 7, 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.*