# Barrel Defender vs Virus Versus™

The clearest difference is rating: Virus Versus™ at 5.0 against Barrel Defender's 4.0. Barrel Defender's advantage is update cadence (every 39 months vs every 78 months) and price ($0.99 vs $1.99). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Barrel Defender costs $0.99 and Virus Versus™ $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Virus Versus™ holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Barrel Defender ships an update every 39 months, Virus Versus™ every 78 months. The most recent releases landed on October 23, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Barrel Defender | Virus Versus™ |
| --- | --- | --- |
| Price | **$0.99** | $1.99 |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/barrel-defender-galaxy/id321991078/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/virus-versus/id923028971/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 39 months** | Every 78 months |
| Monetization | Paid | Paid |
| Size | 33 MB | 300 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 9+ |
| Developer | [Stefan Preuss](https://appshunter.io/developer/307563428) | [Edward Ganges](https://appshunter.io/developer/349422589) |

## What reviewers say

### Barrel Defender

[App page](https://appshunter.io/ios/app/barrel-defender-galaxy/id321991078)

Defend your energy barrels from alien invaders in this retro arcade space shooter. Enjoy simple, intuitive controls and blast through waves of enemies with various weapons and challenging boss fights.

**Highlights:** Two game modes: endless and wave, 25 alien-filled waves, Variety of aliens and movement patterns, Boss enemy battles, Weapon power-ups, Easy finger-slide controls

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

**In-app purchases:** none


### Virus Versus™

[App page](https://appshunter.io/ios/app/virus-versus/id923028971)

Assume the role of an alien orchestrating a global virus and zombie apocalypse. Terraform the world, dehumanize humans, and abduct victims while avoiding the revenge of the undead. Enjoy fun graphics, upbeat music, and a unique apocalyptic theme.

**Highlights:** Alien virus zombie apocalypse simulation, World terraforming with Bio Poop, Dehumanize and abduct humans, Avoid undead revenge, Fun, bright graphics, Upbeat music and sound effects

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

**In-app purchases:** none


## Frequently asked questions

### Is Barrel Defender free?

Barrel Defender costs $0.99, with no in-app purchases.

### Is Virus Versus™ free?

Virus Versus™ costs $1.99, with no in-app purchases.

### Which has better reviews, Barrel Defender or Virus Versus™?

Virus Versus™ is rated higher. Barrel Defender averages 4.0 out of 5 from 1 ratings, while Virus Versus™ averages 5.0 from 1 ratings.

### Do Barrel Defender or Virus Versus™ have ads?

Neither Barrel Defender nor Virus Versus™ shows ads.

### Which is updated more often, Barrel Defender or Virus Versus™?

Barrel Defender ships an update every 39 months, and Virus Versus™ every 78 months. Most recently, Barrel Defender was updated on October 23, 2026 and Virus Versus™ 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.*