# Perlin Ball vs Quantum Defender

The clearest difference is in-app purchases: Perlin Ball at none against Quantum Defender's 7. Perlin Ball also leads on iOS requirement (12.0 vs 15.0). Quantum Defender's advantage is ads (none vs shown) and update cadence (every 6 days vs every 38 months). On price and device support there is nothing between them.

Both are free to download. Quantum Defender sells 7 one-off in-app purchases. Perlin Ball asks for nothing beyond the download.

Perlin Ball ships an update every 38 months, Quantum Defender every 6 days. The most recent releases landed on October 8, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Perlin Ball | Quantum Defender |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/quantum-defender/id6774734122/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 38 months | **Every 6 days** |
| Monetization | — | Free with in-app purchases |
| Size | 64 MB | 124 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kris Koon](https://appshunter.io/developer/1126420333) | [RQM Technologies LLC](https://appshunter.io/developer/6771489977) |

## What reviewers say

### Perlin Ball

[App page](https://appshunter.io/ios/app/perlin-ball/id1575311755)

**Features:** macOS Compatibility

**In-app purchases:** none


### Quantum Defender

[App page](https://appshunter.io/ios/app/quantum-defender/id6774734122)

Defend a quantum core by controlling and aligning a wavefunction against waves of incoming enemies. This arcade action game transforms abstract quantum concepts into fast-paced, visual gameplay with simple touch controls and escalating challenges.

**Highlights:** Fast arcade defense gameplay, Wavefunction alignment mechanics, Quantum-inspired enemies and effects, Increasing enemy pressure, Designed for touch controls, Sci-fi wave-based game world

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cadet Qubit Pack | $1.99 | one-time |
| Field Qubit Pack | $5.99 | one-time |
| Command Qubit Pack | $11.99 | one-time |
| Singularity Qubit Pack | $25.99 | one-time |
| Architect Qubit Pack | $49.99 | one-time |
| Navigator Qubit Pack | $99.99 | one-time |
| Horizon Qubit Pack | $199.99 | one-time |


## Frequently asked questions

### Is Perlin Ball free?

Perlin Ball is free to download, with no in-app purchases.

### Is Quantum Defender free?

Quantum Defender is free to download, with in-app purchases available.

### Do Perlin Ball or Quantum Defender have ads?

Perlin Ball shows ads; Quantum Defender does not.

### Which is updated more often, Perlin Ball or Quantum Defender?

Perlin Ball ships an update every 38 months, and Quantum Defender every 6 days. Most recently, Perlin Ball was updated on October 8, 2026 and Quantum Defender on October 18, 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.*