# Airfoil Design vs FlatSixDynamics

The clearest difference is in-app purchases: Airfoil Design at none against FlatSixDynamics's 1. Airfoil Design also leads on iOS requirement (16.0 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. FlatSixDynamics sells 1 one-off in-app purchase. Airfoil Design asks for nothing beyond the download.

Airfoil Design ships an update every 10 days, FlatSixDynamics every 6 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Airfoil Design | FlatSixDynamics |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (19 ratings)](https://appshunter.io/ios/app/airfoil-design/id6444901600/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 6 days** |
| Monetization | Free | — |
| Size | 122 MB | 40 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Charles Bilodeau-Berube](https://appshunter.io/developer/1657784873) | [Juergen Groenner](https://appshunter.io/developer/6771928531) |

## What reviewers say

### Airfoil Design

[App page](https://appshunter.io/ios/app/airfoil-design/id6444901600)

This application allows users to design and analyze aircraft wing sections using advanced numeric methods and CFD simulations. It offers tools for creating custom airfoil geometries, real-time aerodynamic analysis, and importing existing designs.

**Highlights:** NACA airfoil generation, Real-time aerodynamic analysis, Airfoil import from database, Custom mesh generation, CFD simulation engine, Streamlines and CP vector visualization

**Features:** macOS Compatibility

**In-app purchases:** none


### FlatSixDynamics

[App page](https://appshunter.io/ios/app/flatsixdynamics/id6771928529)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full access | $2.99 | one-time |


## Frequently asked questions

### Is Airfoil Design free?

Airfoil Design is free to download, with no in-app purchases.

### Is FlatSixDynamics free?

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

### Do Airfoil Design or FlatSixDynamics have ads?

Neither Airfoil Design nor FlatSixDynamics shows ads.

### Which is updated more often, Airfoil Design or FlatSixDynamics?

Airfoil Design ships an update every 10 days, and FlatSixDynamics every 6 days. Most recently, Airfoil Design was updated on October 24, 2026 and FlatSixDynamics on October 24, 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.*