# Blue Defense vs Quantum Arcade

The clearest difference is rating: Quantum Arcade at 5.0 against Blue Defense's 4.3. Quantum Arcade also leads on in-app purchases (none vs 1) and iOS requirement (11.1 vs 16.0). Blue Defense's advantage is ratings volume (20 vs 1). On price and device support there is nothing between them.

Both are free to download. Blue Defense sells 1 one-off in-app purchase. Quantum Arcade asks for nothing beyond the download.

Quantum Arcade holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Blue Defense has 20 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | Blue Defense | Quantum Arcade |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (20 ratings)](https://appshunter.io/ios/app/blue-defense-second-wave/id389817492/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/quantum-arcade/id1586759932/reviews)** |
| Number of ratings | **20** | 1 |
| Positive reviews | 81.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 3 months | — |
| Monetization | Free with in-app purchases | **Free** |
| Size | 16 MB | 88 MB |
| Requires iOS | 16.0 | **11.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [Cat in a Box Software](https://appshunter.io/developer/1600179204) | [VOR Technology, LLC](https://appshunter.io/developer/1586759934) |

## What reviewers say

### Blue Defense

[App page](https://appshunter.io/ios/app/blue-defense-second-wave/id389817492)

Defend your planet from alien invaders using a powerful cannon. Engage in intense arcade action with various game modes, leaderboards, and unlockable content. Enjoy updated retro graphics and flexible controls.

**Highlights:** Planet cannon for mass enemy destruction, Gauntlet mode to win the game, Infinite-Classic and Infinite-Quickstart modes, Level select with medal earning, 74 global leaderboards, Automatic save state, Multi-touch and tilt controls

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Content | $1.99 | one-time |


### Quantum Arcade

[App page](https://appshunter.io/ios/app/quantum-arcade/id1586759932)

This app provides truly random outcomes for decision-making and games of chance using quantum random number generation. It offers tools like coin flips, rock-paper-scissors, and lottery number generation based on physical quantum behavior, not just algorithms. Users can also attempt to influence outcomes through intention.

**Highlights:** Quantum Random Number Generation (QRNG), Coin flip, Rock, Paper, Scissors, Lottery number generation, Decision randomization, Outcome intention

**In-app purchases:** none


## Frequently asked questions

### Is Blue Defense free?

Blue Defense is free to download, with in-app purchases available.

### Is Quantum Arcade free?

Quantum Arcade is free to download, with no in-app purchases.

### Which has better reviews, Blue Defense or Quantum Arcade?

Quantum Arcade is rated higher. Blue Defense averages 4.3 out of 5 from 20 ratings, while Quantum Arcade averages 5.0 from 1 ratings.

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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.*