# NavCalc Dynamic vs Quantum Audio Generator

The clearest difference is in-app purchases: NavCalc Dynamic at none against Quantum Audio Generator's 1. NavCalc Dynamic also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.6). On price and ads there is nothing between them.

Both are free to download. Quantum Audio Generator sells 1 one-off in-app purchase. NavCalc Dynamic asks for nothing beyond the download.

## The numbers

| Metric | NavCalc Dynamic | Quantum Audio Generator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/navcalc-dynamic/id1638841716/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 days | — |
| Monetization | Free | — |
| Size | 15 MB | 1 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Richard Craddock](https://appshunter.io/developer/1579756955) | [天佑 伍](https://appshunter.io/developer/1846286944) |

## What reviewers say

### NavCalc Dynamic

[App page](https://appshunter.io/ios/app/navcalc-dynamic/id1638841716)

This app calculates the course and speed needed to counteract current and wind effects for navigation. It visually displays these calculations on a compass rose, dynamically updating as parameters change. Useful for learning and solving real-world sailing problems.

**Highlights:** Calculate Course to Steer (CtS), Calculate Speed over Ground (SoG), Visual compass rose display, Dynamic parameter updates, Magnetic variation input, Leeway and wind direction input

**Features:** macOS Compatibility

**In-app purchases:** none


### Quantum Audio Generator

[App page](https://appshunter.io/ios/app/quantum-audio-generator/id6760098300)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium Membership | $5.99 | one-time |


## Frequently asked questions

### Is NavCalc Dynamic free?

NavCalc Dynamic is free to download, with no in-app purchases.

### Is Quantum Audio Generator free?

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

### Do NavCalc Dynamic or Quantum Audio Generator have ads?

Neither NavCalc Dynamic nor Quantum Audio Generator shows ads.

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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.*