# CompTIA Security+ A+ Trainer vs Resonant Quantum Mechanics

The clearest difference is in-app purchases: Resonant Quantum Mechanics at none against CompTIA Security+ A+ Trainer's 1. Resonant Quantum Mechanics also leads on update cadence (weekly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. CompTIA Security+ A+ Trainer sells 1 one-off in-app purchase. Resonant Quantum Mechanics asks for nothing beyond the download.

CompTIA Security+ A+ Trainer ships an update every 2 months, Resonant Quantum Mechanics weekly. The most recent releases landed on September 20, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | CompTIA Security+ A+ Trainer | Resonant Quantum Mechanics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/resonant-quantum-mechanics/id6771489975/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | — | Free |
| Size | 82 MB | 144 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [LE Commsulting GmbH](https://appshunter.io/developer/927359665) | [RQM Technologies LLC](https://appshunter.io/developer/6771489977) |

## What reviewers say

### CompTIA Security+ A+ Trainer

[App page](https://appshunter.io/ios/app/comptia-security-plus-a-plus-trainer/id6762133145)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Security+ V7 Objectives (EN) | $24.99 | one-time |


### Resonant Quantum Mechanics

[App page](https://appshunter.io/ios/app/resonant-quantum-mechanics/id6771489975)

Explore quantum mechanics through interactive 3D visuals and guided lessons. This educational app uses geometry and quaternions to explain complex concepts like quantum states, hydrogen, and the periodic table. No login is required for this visual learning experience.

**Highlights:** Interactive 3D visuals, Guided lessons, Geometric approach to quantum mechanics, Explains quaternions and quantum states, Covers hydrogen and periodic table, No login required

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

**In-app purchases:** none


## Frequently asked questions

### Is CompTIA Security+ A+ Trainer free?

CompTIA Security+ A+ Trainer is free to download, with in-app purchases available.

### Is Resonant Quantum Mechanics free?

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

### Do CompTIA Security+ A+ Trainer or Resonant Quantum Mechanics have ads?

Neither CompTIA Security+ A+ Trainer nor Resonant Quantum Mechanics shows ads.

### Which is updated more often, CompTIA Security+ A+ Trainer or Resonant Quantum Mechanics?

CompTIA Security+ A+ Trainer ships an update every 2 months, and Resonant Quantum Mechanics weekly. Most recently, CompTIA Security+ A+ Trainer was updated on September 20, 2026 and Resonant Quantum Mechanics on September 8, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*